CN115653820B - Power generation method utilizing pot cover effect - Google Patents
Power generation method utilizing pot cover effect Download PDFInfo
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- CN115653820B CN115653820B CN202211312600.2A CN202211312600A CN115653820B CN 115653820 B CN115653820 B CN 115653820B CN 202211312600 A CN202211312600 A CN 202211312600A CN 115653820 B CN115653820 B CN 115653820B
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- 230000000694 effects Effects 0.000 title claims abstract description 25
- 238000010248 power generation Methods 0.000 title claims abstract description 22
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 239000002689 soil Substances 0.000 claims abstract description 39
- 239000004576 sand Substances 0.000 claims abstract description 16
- 238000005381 potential energy Methods 0.000 claims abstract description 10
- 230000009471 action Effects 0.000 claims abstract description 9
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- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000012544 monitoring process Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
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Abstract
The pot cover effect in the invention refers to the phenomenon that moisture in unsaturated soil body is moved to a low-temperature condensation area in the form of water vapor under the drive of temperature difference and is condensed at the lower part of a closed covering layer, so that the moisture is accumulated to cause the increase of the moisture content of the shallow soil body. The invention provides a power generation method utilizing a pot cover effect, which comprises the following steps: the novel 'vapor permeable and water isolating structure' with the gradient of 2% is paved in a sand condensing area of a soil sample tube in a laboratory, a constant water level is provided at the lower part of the soil sample tube, vapor passes through the 'vapor permeable and water isolating structure' under the driving of a temperature difference, and is condensed in an upper sand layer, accumulated condensed water vertically falls to the lower layer in the structure under the action of gravity, and then flows through a power generation device through a water outlet, and finally water flow potential energy is converted into electric energy. The idea may have an revolutionary meaning for developing new ways of clean energy.
Description
Technical Field
The invention provides a new energy power generation idea, in particular relates to a power generation method utilizing a pot cover effect, can realize the conversion of water flow potential energy at the lower part of a cover layer to electric energy caused by the pot cover effect, and belongs to the field of geotechnical engineering unsaturated soil moisture migration technology cross research.
Background
The airport of Zhangzhou Zhongchuan and the international airport of Shenyang xiantao are typical arid cold areas, the external rainfall is little, the groundwater level is low, there is a great temperature difference between deep and shallow soil, these factors are important conditions that "pan cover effect" forms. The pot cover effect is a phenomenon that water in a deep soil body migrates from a warm area to a cold area in a water vapor mode under the drive of a temperature gradient, and condensation occurs in the cold area under a closed covering layer, so that the water content of the shallow soil body is increased. In actual engineering, the water content of a road base is increased to cause diseases such as uneven settlement, freeze thawing, salt expansion and the like of a road surface, so that huge potential safety hazards are caused to navigation of an airplane.
The China patent with the application number 201811555384.8 discloses a method for collecting water generated by a pot cover effect, which comprises a temperature control system, a water vapor migration system, a data monitoring system and the like, wherein the water generated by the pot cover effect is collected by using a beaker, and if a soil body adopts sandy soil with stronger water permeability and reduces the water level, the device can not collect water and can not fully utilize water flow potential energy generated by the pot cover effect under the condition of no vapor-permeable water-proof structure.
The general trend of energy utilization in China is towards clean energy mode. Under the background, the invention relates to water generated by utilizing the pot cover effect principle, and a novel 'vapor permeable and water-proof structure' is added to convert water flow potential energy into electric energy. The method can have potential social and economic benefits for life and production of people.
Disclosure of Invention
The invention can solve the problems and the defects existing in the prior art, improves the energy utilization efficiency, promotes the low-carbon environment-friendly development, and converts the generated water flow potential energy into electric energy by utilizing the pot cover effect principle.
The device of the invention consists of four systems: including temperature control system, steam migration system, power generation system and data monitoring system, its characterized in that: the temperature control system is provided with a constant temperature tank, a circulating liquid guide pipe, a heat preservation sleeve, an upper temperature guide plate, a lower temperature guide plate and the like; the water vapor migration system is provided with a Marshall bottle device, an organic glass cylinder, a water inlet, a water outlet, a water return port, a threading hole, a porous plate, a vapor permeable water-proof structure and the like; the power generation system is provided with a turbine, a generator, a bulb and the like; the data monitoring system is provided with a data acquisition box, a USB wire, a computer and the like.
The technical scheme adopted by the invention is as follows: the method is characterized in that the method is updated and modified on the basis of the patent of 'a method for collecting water generated by the pot cover effect', a beaker water collecting part is modified into a power generation system, a novel 'vapor permeable water-proof structure' is added in a soil sample, the structure utilizes the idea that the path can be changed when water vapor passes through and the path is unchanged when water vertically falls down by gravity, and a soil sample medium is sandy soil with good water permeability. Before the power generation method is applied to engineering practice, firstly, an indoor experiment platform needs to be built and related parameters are set, and the power generation method is characterized in that: a gradient permeable and waterproof structure is paved in a soil shallow condensing area, the condensing area is arranged above the dew point depth (the lowest position where water vapor begins to condense), the lowest end of an air inlet pipe of a Marshall bottle and a water return port are all kept flush with a porous plate of a soil sample tube, and a water outlet is connected with a power generation system through a pipeline. According to the scheme, water vapor is driven by the temperature gradient to move upwards to the condensation area, and accumulated condensed water flows through the power generation system through the water outlet under the action of gravity and drives the equipment to generate power, so that the purpose of generating power by the pot cover effect is achieved.
The invention has the following innovation points and beneficial effects:
1. The invention can convert the potential energy of water flow generated by the pot cover effect into electric energy.
2. The invention provides a novel 'breathable water-proof structure', which is used in an indoor experimental soil sample cylinder, and the integral experimental model formed by the structure is convenient to operate and is close to reality.
3. The scale development of the pot cover effect power generation industry is primarily discussed in theory, and potential social and economic benefits can be created.
Drawings
FIG. 1 is a schematic diagram of the pot cover effect power generation of the invention
FIG. 2 is a plan view of a vapor permeable and waterproof structure
FIG. 3 is a cross-sectional view of a vapor permeable and waterproof structure (a) A-A (B) B-B
In the figure: 10. a No. 2 constant temperature tank; 11. a No. 1 constant temperature tank; 12. circulating a cooling liquid; 13. a mahalanobis bottle; 14. an air inlet pipe; 15. a vapor permeable, water barrier; 16. sand soil; 17. a porous plate; 18. a water inlet; 19. a water storage chamber; 20. a lower temperature guiding plate; 21. a water return port; 22. a generator; 23. an electric bulb; 24. a turbine; 25. a water conduit; 26. a regulating valve; 27. a water outlet; 28. a gauze; 29. a soil sample tube; 30. an upper temperature guiding plate; 31. the upper layer is provided with a steam permeable and water permeable hole; 32. a vapor impermeable and water impermeable facing; 33. a lower layer ventilation hole; 34. the direction of the water flow.
Detailed Description
The invention will be further described with reference to the accompanying drawings:
As shown in fig. 1-3, the system for generating electricity by using the pot cover effect has the following working principle: the soil sample is a sand layer 16 with high water permeability, a 'permeable water-proof structure' 15 with the gradient of 2% is paved in a sand condensing area of a laboratory soil sample tube 29, a water outlet 27 is arranged at the bottom of the inclined plane, a constant water level is provided at the lower part of the soil sample tube, water migrates upwards in the form of water vapor under the action of temperature gradient and passes through the permeable water-proof structure, condensed water is condensed in an upper sand layer, the accumulated condensed water vertically falls to the lower layer in the structure under the action of gravity and flows through a power generation device through the water outlet, and finally water flow potential energy pushes a turbine 24 to drive equipment to generate power.
The experimental procedure was as follows:
a. Firstly, paving a layer of gauze on a perforated plate at the bottom of a soil sample cylinder to prevent sand from blocking a ventilation duct, filling experimental sand into the sample cylinder, setting the soil sample height to be 60cm, filling and compacting in a layered mode, paving the surface of the sand to form a long slope with the gradient of 2% when the soil sample filling height reaches a water outlet, setting a circular water outlet at the joint of the center of the tail end of the slope and a vertical face, wherein the diameter of the water outlet is 2cm, and simulating a water scattering structure with high sides and low sides in the middle of an airport or a road by the slope, and meanwhile, facilitating water collection.
B. The water-proof structure of permeating vapor is laid on the slope, structure lower part delivery port department flushes with test cylinder delivery port position, and this structure adopts upper and lower bilayer form, and the material is stainless steel, and structural thickness is 4cm, and the height of vapor permeation hole 32 is 2cm, and the internal diameter is 1.6cm, and wall thickness 2mm, bottom surface course and go up surface course thickness and be 2mm, and upper portion vapor-impermeable and waterproof surface course 32 partial diameter is 2.2cm, and diameter range can cover lower floor's vapor permeation hole 33, prevents water infiltration vapor permeation hole. A layer of gauze 28 with hardness is paved on the top surface of the structure to play a role of sand isolation, polyurethane waterproof sealing paste is smeared on the edge of the structural layer to prevent water from penetrating downwards, sand is continuously backfilled on the top surface, and an upper temperature guiding disc 30 is placed on the top surface to control the temperature of the upper region.
C. the Marshall 13 is connected with the water storage chamber 19 through the water inlet 18 and provides a stable water source for the sandy soil layer, and as the bottom end position of the air inlet pipe 14 is consistent with the soil layer water level, the lowest end of the air inlet pipe in the Marshall is flush with the top of the porous plate 17, so that the constant water level at the bottom of the sandy soil layer is ensured, and the temperature of the lower part of the soil body is regulated and controlled by the lower temperature guiding disc 20.
D. The temperature of the upper temperature-guiding plate 30 is reduced to 0.3 ℃ by using a No. 1 constant temperature tank 11 through circulating cooling liquid 12, the lower temperature-guiding plate is heated to 30 ℃ by using a No. 2 constant temperature tank 10, water vapor migrates to a lower cold area of the upper temperature-guiding plate under the driving of a temperature difference and is condensed, condensed water in an upper shallow layer area continuously increases until the water supply degree of the sand-soil layer with the designed thickness of the upper condensing area is reached (the volume of water discharged under the action of gravity in the sand-soil layer is divided by the total volume of a water-bearing layer sample saturated with water), and accumulated condensed water begins to infiltrate downwards under the action of gravity and is converged to a water outlet through a vapor-permeable water-proof structure.
E. When water is accumulated by a certain amount, the regulating valve 26 is opened, water flows into the power generation system under the action of gravity, the turbine 24 is driven to rotate by the potential energy of the water flow, the generator 22 is driven to operate and drive the electric bulb 23 to generate power, and finally the water flows through the water return port 21 and flows back to the water storage chamber 19, so that a closed water flow loop is formed, and the water is recycled in the process.
F. The invention not only verifies the existence of the pot cover effect by using the pot cover effect power generation method, but also applies the technology to the dry and cold areas in a large scale in the future, can solve the problem of difficult power utilization in partial areas and generate better social and economic benefits, and has a possibly revolutionary significance for developing clean energy sources in new modes.
Claims (1)
1. The power generation method by using the pot cover effect is a method for converting condensed water potential energy generated by the pot cover effect into electric energy, and comprises a pot cover effect tester, a temperature control system, a water vapor migration system, a power generation system and a data monitoring system;
The temperature control system comprises a No. 1 constant temperature tank, a No. 2 constant temperature tank, a circulating liquid guide pipe, a heat preservation sleeve, an upper temperature guide plate and a lower temperature guide plate; the No. 1 constant temperature tank is connected with the upper temperature guiding disc through a circulating liquid conduit; the No. 2 constant temperature tank is connected with the lower temperature guiding disc through a circulating liquid conduit;
The water vapor migration system comprises an air inlet pipe, a Marshall bottle, a soil sample cylinder, a vapor permeable and waterproof structure, a gauze, a regulating valve, sand, a porous plate and a water storage chamber; the air inlet pipe is arranged in the Margaret bottle; the porous plate is positioned at the bottom of the soil sample cylinder, the water storage chamber is positioned at the bottom of the porous plate, the lower temperature guide plate is positioned in the water storage chamber, and the Marshall bottle is connected with the water storage chamber through the water inlet pipe; the sand is paved on the upper part of a perforated plate in the soil sample cylinder, the vapor permeable and waterproof structure is obliquely arranged in the sand, the gauze is paved on the upper surface of the vapor permeable and waterproof structure, the upper temperature guiding disc is positioned on the upper surface of the sand, and the regulating valve is arranged at the water outlet of the vapor permeable and waterproof structure; the gauze is a rigid permeable gauze with vapor permeation;
The power generation system comprises a water guide pipe, a turbine, a generator and an electric bulb; the regulating valve is connected with the water inlet of the turbine through a water guide pipe, and the water outlet of the turbine is connected with the water storage chamber through a water return pipe; the turbine is connected with a generator, and the generator operates and drives the bulb to emit light;
the data monitoring system comprises a data acquisition box, a USB line and a computer;
During the test, the upper temperature guiding plate utilizes the No. 1 constant temperature tank to cool the upper surface of the sandy soil through circulating cooling liquid, the lower temperature guiding plate utilizes the No. 2 constant temperature tank to heat water in the water storage chamber, the water passes through the porous plate to enter the sandy soil under the action of temperature gradient, upwards migrates in the form of vapor and passes through the vapor-permeable water-proof structure, the condensed water accumulated in the upper sandy soil layer is condensed under the action of gravity and vertically falls to the inner lower layer of the vapor-permeable water-proof structure, then flows through the power generation system through the water outlet, and finally the water flow potential energy pushes the turbine so as to drive the equipment to generate power;
The method is characterized in that: the water head generated by utilizing the pot cover effect is higher than the water head in the soil sample cylinder corresponding to the bottom end of the air inlet pipe of the Marshall bottle, and the lowest end of the air inlet pipe of the Marshall bottle is kept flush with the top of the porous plate, so that a constant water level is provided for the sandy soil layer; during the test, a vapor permeable and waterproof structure with the inclination of 2% is paved in a sand condensing area of the soil sample cylinder;
The vapor-permeable and waterproof structure is of an upper-lower double-layer structure, the lower part is of a vapor-permeable and waterproof layer, the vapor-permeable holes are raised hollow cylindrical drums, and the path can be changed when vapor passes through the vapor-permeable and waterproof layer to migrate upwards by using temperature difference driving; the upper layer of the permeable holes and the lower layer of the permeable holes are staggered, most of the upper layer is permeable holes, and the impermeable surface layer can completely cover the range of the lower layer of permeable holes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211312600.2A CN115653820B (en) | 2022-10-25 | 2022-10-25 | Power generation method utilizing pot cover effect |
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| CN202211312600.2A CN115653820B (en) | 2022-10-25 | 2022-10-25 | Power generation method utilizing pot cover effect |
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| CN115653820A CN115653820A (en) | 2023-01-31 |
| CN115653820B true CN115653820B (en) | 2024-06-11 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344748A (en) * | 2013-07-05 | 2013-10-09 | 上海大学 | Device and method for testing deformation and water transfer characteristics of soil body under temperature gradient effect |
| CN107063933A (en) * | 2017-03-20 | 2017-08-18 | 北京航空航天大学 | A kind of " pot cover effect " test instrument |
| CN107102115A (en) * | 2017-04-24 | 2017-08-29 | 北京航空航天大学 | A kind of method and device of " pot cover effect " site-models experiment |
| CN109610562A (en) * | 2018-12-19 | 2019-04-12 | 北京航空航天大学 | A method of it collecting pot cover effect and generates water |
| CN114892759A (en) * | 2022-02-25 | 2022-08-12 | 北京航空航天大学 | Desert shallow water storage technology utilizing pot cover effect |
| CN114965174A (en) * | 2022-05-26 | 2022-08-30 | 中国科学院武汉岩土力学研究所 | Unsaturated soil subgrade water-gas migration characteristic testing device and testing method thereof |
| CN116297026A (en) * | 2023-03-09 | 2023-06-23 | 北京航空航天大学 | Tester for researching migration rule of pot cover effect gaseous water in soil and using method thereof |
-
2022
- 2022-10-25 CN CN202211312600.2A patent/CN115653820B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344748A (en) * | 2013-07-05 | 2013-10-09 | 上海大学 | Device and method for testing deformation and water transfer characteristics of soil body under temperature gradient effect |
| CN107063933A (en) * | 2017-03-20 | 2017-08-18 | 北京航空航天大学 | A kind of " pot cover effect " test instrument |
| CN107102115A (en) * | 2017-04-24 | 2017-08-29 | 北京航空航天大学 | A kind of method and device of " pot cover effect " site-models experiment |
| CN109610562A (en) * | 2018-12-19 | 2019-04-12 | 北京航空航天大学 | A method of it collecting pot cover effect and generates water |
| CN114892759A (en) * | 2022-02-25 | 2022-08-12 | 北京航空航天大学 | Desert shallow water storage technology utilizing pot cover effect |
| CN114965174A (en) * | 2022-05-26 | 2022-08-30 | 中国科学院武汉岩土力学研究所 | Unsaturated soil subgrade water-gas migration characteristic testing device and testing method thereof |
| CN116297026A (en) * | 2023-03-09 | 2023-06-23 | 北京航空航天大学 | Tester for researching migration rule of pot cover effect gaseous water in soil and using method thereof |
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