CN212143874U - Gas collection recharging system - Google Patents
Gas collection recharging system Download PDFInfo
- Publication number
- CN212143874U CN212143874U CN201922310637.1U CN201922310637U CN212143874U CN 212143874 U CN212143874 U CN 212143874U CN 201922310637 U CN201922310637 U CN 201922310637U CN 212143874 U CN212143874 U CN 212143874U
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- China
- Prior art keywords
- well
- recharging
- gas
- gas collection
- recharge
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000010865 sewage Substances 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 description 76
- 238000005325 percolation Methods 0.000 description 9
- 238000007667 floating Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 6
- 238000001914 filtration Methods 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 239000002985 plastic film Substances 0.000 description 5
- 229920006255 plastic film Polymers 0.000 description 5
- 238000009825 accumulation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000009313 farming Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/30—Landfill technologies aiming to mitigate methane emissions
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a gas collection recharge system, including the gas collection well, recharge the well and attract the pipe, the well head of gas collection well and recharge the well all is located the earth's surface, its well head department all is equipped with the well lid, be equipped with latent dirty pump in the gas collection well, the liquid outlet department of latent dirty pump is equipped with the blow off pipe, the other end of blow off pipe is connected to in the recharge well, be equipped with the recharge chamber of outside extension on the bottom lateral wall of recharge well, be equipped with gas conveying pipe on the well lid of recharge well, gas conveying pipe's the other end passes the well lid of gas collection well and extends to in the gas collection well, attract the one end of pipe to pass the well lid of gas collection well and extend to in the gas collection well, be located the through-hole on the lateral wall of the attraction pipe in the gas collection well, be located and be equipped with the air exhauster on the.
Description
Technical Field
The utility model relates to a landfill technical field especially relates to a gas collection recharge system.
Background
Landfill is a common treatment mode of municipal solid domestic garbage, the garbage can be degraded in a landfill site to generate a large amount of landfill gas containing greenhouse gases, and the methane gas in the landfill gas has high economic value. In order to prevent pollution and facilitate landfill gas collection, plastic films are often covered on the surface of a landfill site, and the plastic films isolate rainwater to reduce landfill leachate, so that the landfill gas is not generated by degrading garbage, and leachate recharge is needed.
The odor of the percolate can escape by the traditional recharging technology such as surface recharging and sprinkling and is difficult to control; the pipelines laid under the film are easy to be unevenly recharged.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a gas collection recharging system, which has the advantages of no leakage of odor, uniform recharging and the like.
The technical scheme of the utility model is that:
a gas collection recharging system comprises a gas collection well, a recharging well and a suction pipe, wherein well heads of the gas collection well and the recharging well are both positioned on the ground surface, the well mouth is provided with a well cover, the inside of the gas collection well is provided with a submersible sewage pump, the liquid outlet of the submersible sewage pump is provided with a sewage discharge pipe, the other end of the sewage discharge pipe is connected into the recharging well, a recharging cavity extending outwards is arranged on the side wall of the bottom of the recharging well, a gas conveying pipe is arranged on the well cover of the recharging well, the other end of the gas conveying pipe penetrates through the well cover of the gas collecting well and extends into the gas collecting well, one end of the suction pipe penetrates through a well cover of the gas collecting well and extends into the gas collecting well, a through hole is formed in the side wall of the suction pipe located in the gas collecting well, an exhaust fan is arranged on the suction pipe located outside the gas collecting well, and an air outlet of the exhaust fan is connected with the gas storage device through the gas collecting pipe.
The gas collecting well is internally provided with a submersible sewage pump, accumulated percolate in the gas collecting well is pumped into the recharging well, the recharging well is communicated with a recharging cavity close to the bottom, the percolate flows through the relatively dry garbage heap body again through the recharging well and the recharging cavity, the recharging cavity can enable the recharging range of the recharging well to be wider, the recharging efficiency is improved, the recharging is uniform, a part of percolate and a microbial community in the percolate can be left when the percolate flows through the garbage heap body, the garbage humidity is increased, the degradation speed of garbage in the garbage heap is accelerated, the speed of generating landfill gas in the garbage heap is greatly improved, and the gas generating efficiency is increased; the percolate is not exposed in the air in the whole process of recharging, so that the odor is not leaked to pollute the environment; the wellhead of the recharge well is provided with a vent pipe which is communicated with the wellhead of the gas collecting well, so that the landfill gas in the recharge well can enter the gas collecting well in time and is pumped out by the suction pipe for utilization, and the potential safety hazard caused by the fact that a large amount of landfill gas is deposited in the recharge well is avoided.
Preferably, a liquid level float switch is arranged in the gas collection well and is connected with the submersible sewage pump in series.
The floater of the liquid level floating ball switch floats upwards along with the accumulation of the percolate in the gas collecting well, and after the floater floats to a certain height, the internal switch of the liquid level floating ball is communicated to connect the submersible sewage pump with the power supply, so that the functions of automatically extracting the percolate and controlling the depth of the percolate are achieved.
Preferably, the distance between the recharging well and the gas collecting well is 15m-25m, the depth of the recharging well is 2.5m-4.5m, and the length of the recharging cavity extending along the circumferential direction of the recharging well is 3m-5 m.
The depth of the recharging well is 2.5m-4.5m, while the depth of the gas collecting well is generally far greater than that of the recharging well, so that percolation pumped out of the gas collecting well needs a sufficient diffusion range to permeate to the bottom of the gas collecting well again, the distance of the recharging well is set to be relatively far 15m-25m, and the percolation liquid flows through the sufficiently wide diffusion range, so that the percolation liquid is prevented from flowing back to the gas collecting well too early; meanwhile, as the plastic film covers the surface of the garbage pile, rainwater cannot seep downwards, the water on the upper layer of the garbage pile is not supplemented after seeping downwards, dry garbage is difficult to degrade and almost cannot generate landfill gas, the recharge cavity with the depth of 1m-2m is buried in the upper layer of the garbage pile, so that penetrating fluid flows transversely, the dry garbage on the upper layer of the garbage pile is recharged and permeated, the water humidity on the upper layer of the garbage pile is kept, and the degradation speed is accelerated.
Preferably, the outside of the walls of the recharging well and the recharging cavity is provided with a soil and sand filtering layer with the thickness of 50mm-100 mm.
The outside of recharging well and recharging chamber all is equipped with the component and is the filter layer of farming soil and sand, and the farming soil of filter layer and the proportion of sand are 7: the filter layer with the proportion is suitable for the growth and the propagation of various microorganisms, and can well filter organic impurities in the percolate, so that the microorganisms in the filter layer are quickly degraded, and a good biological filtering effect is achieved.
The utility model has the advantages that:
1. the utility model has the advantages of no leakage of odor, uniform recharge and the like;
2. the floater of the liquid level floating ball switch floats upwards along with the accumulation of the percolate in the gas collecting well, after the percolate floats to a certain height, the internal switch of the liquid level floating ball is communicated, and a submerged sewage pump switch connected with the liquid level floating ball in series is switched on, so that the functions of automatically pumping the percolate and controlling the depth of the percolate are achieved;
3. the depth of the recharging well is 2.5m-4.5m, while the depth of the gas collecting well is generally far greater than that of the recharging well, so that percolation pumped out of the gas collecting well needs a sufficient diffusion range to permeate to the bottom of the gas collecting well again, the distance of the recharging well is set to be relatively far 15m-25m, and the percolation liquid flows through the sufficiently wide diffusion range, so that the percolation liquid is prevented from flowing back to the bottom of the gas collecting well too early; meanwhile, as the plastic film covers the surface of the garbage pile, rainwater cannot seep downwards, the water on the upper layer of the garbage pile is not supplemented after seeping downwards, dry garbage is difficult to degrade and almost cannot generate landfill gas, a recharge cavity with the depth of 1m-2m is buried in the upper layer of the garbage pile, so that penetrating fluid flows transversely, the dry garbage on the upper layer of the garbage pile is recharged and permeated, the water humidity on the upper layer of the garbage pile is kept, and the degradation speed is accelerated;
4. the outside of recharging well and recharging chamber do not is equipped with the component and is ploughed the filter layer of soil and sand, and the proportion of ploughing soil and sand of filter layer is 7: the filter layer with the proportion is suitable for the growth and the propagation of various microorganisms, and can well filter organic impurities in the percolate, so that the microorganisms in the filter layer are quickly degraded, and a good biological filtering effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram of embodiments 1 to 4 of the present invention.
Description of reference numerals:
1. a well cover; 2. a gas collecting well; 3. recharging the well; 4. a recharge chamber; 5. a submersible sewage pump; 6. a gas delivery pipe; 7. a suction tube; 8. a through hole; 9. an exhaust fan; 10. a gas collecting pipe; 11. a gas storage device; 12. a liquid level float switch; 13. a soil sand filter layer; 14. a sewage discharge pipe.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
example 1:
as shown in fig. 1, a gas collection recharging system comprises a gas collection well 2, a recharging well 3 and a suction pipe 7, wherein well mouths of the gas collection well 2 and the recharging well 3 are both located on the earth surface, well covers 1 are arranged at the well mouths of the gas collection well 2, a submersible sewage pump 5 is arranged in the gas collection well 2, a sewage discharge pipe 14 is arranged at a liquid outlet of the submersible sewage pump 5, the other end of the sewage discharge pipe 14 is connected into the recharging well 3, a recharging cavity 4 extending outwards is arranged on the side wall of the bottom of the recharging well 3, a gas conveying pipe 6 is arranged on the well cover 1 of the recharging well 3, the other end of the gas conveying pipe 6 penetrates through the well cover 1 of the gas collection well 2 and extends into the gas collection well 2, one end of the suction pipe 7 penetrates through the well cover 1 of the gas collection well 2 and extends into the gas collection well 2, a through hole 8 is arranged on the side wall of the suction pipe 7 located in the gas collection well 2, and an exhaust fan 9 is arranged on the, the air outlet of the exhaust fan 9 is connected with an air storage device 11 through an air collecting pipe 10.
The gas collecting well 2 is internally provided with a submersible sewage pump 5, accumulated percolate in the gas collecting well 2 is pumped into the recharging well 3, the recharging well 3 is communicated with a recharging cavity 4 near the bottom, the percolate flows through a relatively dry garbage pile again through the recharging well 3 and the recharging cavity 4, the recharging cavity 4 can enable the recharging range of the recharging well 3 to be wider, the recharging efficiency is improved, the recharging is uniform, a part of percolate and a microbial community in the percolate can be left when the percolate flows through the garbage pile, the garbage humidity is increased, the degradation speed of garbage in the garbage pile is accelerated, the speed of generating landfill gas in the garbage pile is greatly improved, and the gas generating efficiency is increased; the percolate is not exposed in the air in the whole process of recharging, so that the odor is not leaked to pollute the environment; the wellhead of the recharge well 3 is provided with a vent pipe communicated with the wellhead of the gas collecting well 2, so that the landfill gas in the recharge well 3 can enter the gas collecting well 2 in time and is pumped out by the suction pipe 7 for utilization, and potential safety hazards caused by a large amount of landfill gas deposited in the recharge well 3 are avoided.
Example 2:
as shown in fig. 1, in embodiment 2, which is an improvement over embodiment 1, a liquid level float switch 12 is arranged in the gas collecting well 2, and the liquid level float switch 12 is connected in series with the submersible sewage pump 5.
The floater of the liquid level floating ball switch 12 floats upwards along with the accumulation of the percolate in the gas collecting well 2, and after the floater floats to a certain height, the internal switch of the liquid level floating ball is communicated to connect the submersible sewage pump 5 with a power supply, so that the functions of automatically extracting the percolate and controlling the depth of the percolate are achieved.
Example 3:
as shown in fig. 1, the embodiment 3 is improved on the basis of the embodiment 2, the distance between the recharging well 3 and the gas collecting well 2 is 15m-25m, the depth of the recharging well 3 is 2.5m-4.5m, and the length of the recharging cavity 4 extending along the circumferential direction of the recharging well 3 is 3m-5 m.
The depth of the recharge well 3 is 2.5m-4.5m, while the depth of the gas collection well 2 is generally far greater than that of the recharge well 3, so that percolation pumped out of the gas collection well 2 needs a sufficient diffusion range to re-infiltrate the bottom of the gas collection well 2, the distance of the recharge well 3 is set to be relatively far 15m-25m, and the percolation liquid flows through the wide diffusion range, so that the percolation liquid is prevented from flowing back to the gas collection well 2 too early; meanwhile, as the plastic film covers the surface of the garbage pile, rainwater cannot seep downwards, the water on the upper layer of the garbage pile is not supplemented after seeping downwards, dry garbage is difficult to degrade and almost cannot generate landfill gas, the recharge cavity 4 with the depth of 1m-2m is buried in the upper layer of the garbage pile, so that the penetrating fluid flows transversely, the dry garbage on the upper layer of the garbage pile is recharged and permeated, the water humidity on the upper layer of the garbage pile is kept, and the degradation speed is accelerated.
Example 4:
as shown in fig. 1, the embodiment 4 is improved on the basis of the embodiment 3, the recharging well 3 and the outside of the wall of the recharging cavity 4 are provided with soil and sand filtering layers 13 with the thickness of 50mm-100mm, the soil and sand filtering layers 13 comprise cultivated soil and sand, and the mass ratio of the cultivated soil to the sand is 7: 1.
the outside of recharge well 3 and recharge cavity 4 all is equipped with the component and is ploughed the filter layer 13 of soil and sand, and the proportion of ploughing soil and sand of soil sand filter layer 13 is 7: 1, the soil and sand filter layer 13 with the proportion is suitable for the growth and the propagation of various microorganisms, and can well filter organic impurities in percolate, so that the microorganisms in the soil and sand filter layer 13 are rapidly degraded, and a good biological filtering effect is achieved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.
Claims (4)
1. A gas collection recharge system is characterized by comprising a gas collection well, a recharge well and a suction pipe, wherein well heads of the gas collection well and the recharge well are both positioned on the ground surface, the well mouth is provided with a well cover, the inside of the gas collection well is provided with a submersible sewage pump, the liquid outlet of the submersible sewage pump is provided with a sewage discharge pipe, the other end of the sewage discharge pipe is connected into the recharging well, a recharging cavity extending outwards is arranged on the side wall of the bottom of the recharging well, a gas conveying pipe is arranged on the well cover of the recharging well, the other end of the gas conveying pipe penetrates through the well cover of the gas collecting well and extends into the gas collecting well, one end of the suction pipe penetrates through a well cover of the gas collecting well and extends into the gas collecting well, a through hole is formed in the side wall of the suction pipe located in the gas collecting well, an exhaust fan is arranged on the suction pipe located outside the gas collecting well, and an air outlet of the exhaust fan is connected with the gas storage device through the gas collecting pipe.
2. The gas collection recharging system of claim 1, wherein a liquid level float switch is provided in the gas collection well, and the liquid level float switch is connected in series with the submersible sewage pump.
3. The gas collection recharging system of claim 2, wherein the distance between the recharging well and the gas collection well is 15m-25m, the depth of the recharging well is 2.5m-4.5m, and the circumferential extension length of the recharging cavity along the recharging well is 3m-5 m.
4. A gas collection and recharge system according to claim 3, wherein the recharge well and the outside of the recharge chamber are provided with soil and sand filter layers with a thickness of 50mm to 100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922310637.1U CN212143874U (en) | 2019-12-20 | 2019-12-20 | Gas collection recharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922310637.1U CN212143874U (en) | 2019-12-20 | 2019-12-20 | Gas collection recharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212143874U true CN212143874U (en) | 2020-12-15 |
Family
ID=73704130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922310637.1U Expired - Fee Related CN212143874U (en) | 2019-12-20 | 2019-12-20 | Gas collection recharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212143874U (en) |
-
2019
- 2019-12-20 CN CN201922310637.1U patent/CN212143874U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201215 |
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| CF01 | Termination of patent right due to non-payment of annual fee |