CN204125812U - A kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease - Google Patents
A kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease Download PDFInfo
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- CN204125812U CN204125812U CN201420589549.4U CN201420589549U CN204125812U CN 204125812 U CN204125812 U CN 204125812U CN 201420589549 U CN201420589549 U CN 201420589549U CN 204125812 U CN204125812 U CN 204125812U
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Abstract
The utility model relates to a kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease, and this device comprises the photovoltaic cell group, battery, the compressor that are placed in earth's surface and is placed in the condenser on seasonal frost heave stratum, is placed in the evaporimeter of good ground.Be provided with liquid refrigerant pipe in described evaporimeter, this liquid refrigerant pipe is connected with described condenser by expansion valve; One end of described compressor is provided with high temperature steam pipe, is provided with Low Temperature Steam pipe bottom it, and its other end is connected with described battery with described photovoltaic cell group respectively by wire via controller; The end of described high temperature steam pipe stretches in described condenser; Described Low Temperature Steam pipe is provided with one way valve, and its end stretches in described evaporimeter.The utility model can prevent subgrade moisture to assemble the uneven protuberance cracking of freezing expansion generation, and can initiatively administer the frost-heaving deformation occurred again, control is had both, and ensure that Frozen Area roadbed safe and stable operation.
Description
Technical field
The utility model relates to seasonal frozen soil region heat stability of embankment to be safeguarded and prevents and treats frost heave technical field, particularly relates to a kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease.
Background technology
At present, seasonal frozen ground refers to the soil layer that winter freezes, spring melts.China's seasonal frozen soil region area is about 513.7 ten thousand km
2, 53.5%, the Qi Nan circle west accounting for area is from Yunnan Zhang Feng, and to east longitude Kunming, Kweiyang, around Sichuan Basin the northern fringe, to Changsha, Anqing, Hangzhou one is with.The seasonal freezing degree of depth in south, Heilongjiang Province, northeastern Inner Mongolia, In Northwest Jilin can more than 3 meters, reduce with latitude southward and reduce.Build high-speed railway in above-mentioned area, the express highway roadbed impact being extensively faced with frost heave that seasonal frozen ground causes, thaw collapse disease.Wherein, near roadbed, surface water and groundwater affects by harsh climate in the winter time, under the effect of temperature difference polywater, can be gathered in the expansion of roadbed crust freezing gradually causes subgrade heave to ftracture, after entering warm season, poly-ice soil body thawing causes Mud pumping, and Frozen-thawed cycled like this has a strong impact on the operation of circuit normal safe.
In current season frozen soil foundation heat stability is safeguarded, the engineering measure that reply frost heave is taked or device mainly contain: replace method of banketing, insulating layer method, Stabilized Soil facture, artificial salinization method.Mainly there is following defect in these measures:
(1) displacement method refers to change with the non-frost heave material of employing fill out swelling soil, and this method construction earth volume is comparatively large, and especially when the displacement of needs long distance transportation is native or the soil removal and replacement degree of depth is larger, cost is higher.
(2) insulating layer method refers in Roadbed Soil, arrange polystyrene heat-preservation layer, and insulating layer fills bed course, easily destroys temperature insulating material in transportation pad layer material and employing mechanical ramming process.
(3) Stabilized Soil facture refers to that the cement mixing right quantity processes when roadbed is made up of weak cohesive soil, can improve its intensity and supporting capacity, increase freeze proof and water repelling property, but the excessive easy generation shrinkage crack of cement dose.
(4) artificial salinization method refers to by measures such as punching note salt, dilution injection and native salt mix and stir, the salinity being dissolved in water in soil be increased, body frost heaving temperature is made to be less than fresh water freezing point, this method is only applicable to the slight section of the higher disease of cryogenic extremes and uses, the roadbed salination disease that the excessive easy appearance of dosage is new.
The starting point of above engineering measure is to overcome and delay the roadbed that frost heave causes and destroys, frost heave can only be reduced, freeze injury can not be eradicated, belong to preventative passive measure, still may there is the problem that a series of frost heave causes in roadbed under long-term harsh climate background, and need constantly to drop into maintenance cost.
Therefore, current roadbed frost damage disease is to put prevention first, and lack effective ACTIVE CONTROL and Treatment process measure or device, the quick control measures can taked after roadbed frost damage occurs and affects the operation of circuit normal safe is limited.Simultaneously due to linear engineering distance, the reasons such as infrastructure along the line is backward, personnel and the long-term difficulty on duty of equipment.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of cold season can fast effectively, the thawing apparatus of initiatively heating of the control seasonal frozen soil region roadbed frost damage disease of ACTIVE CONTROL.
For solving the problem, a kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease described in the utility model, is characterized in that: this device comprises the photovoltaic cell group, battery, the compressor that are placed in earth's surface and is placed in the condenser on seasonal frost heave stratum, is placed in the evaporimeter of good ground; Be provided with liquid refrigerant pipe in described evaporimeter, this liquid refrigerant pipe is connected with described condenser by expansion valve; One end of described compressor is provided with high temperature steam pipe, is provided with Low Temperature Steam pipe bottom it, and its other end is connected with described battery with described photovoltaic cell group respectively by wire via controller; The end of described high temperature steam pipe stretches in described condenser; Described Low Temperature Steam pipe is provided with one way valve, and its end stretches in described evaporimeter.
The utility model compared with prior art has the following advantages:
1, owing to being provided with the condenser being placed in seasonal frost heave stratum in the utility model, be placed in the evaporimeter of good ground, therefore, the evaporimeter be embedded in good ground absorbs tow taste heat, after compressor acting, be converted into high-grade heat by condenser be delivered to frost heave stratum, the solid water of to heat around thawing apparatus in natural stratum in certain limit or filler, subgrade moisture can be prevented to assemble the uneven protuberance cracking of freezing expansion generation, can initiatively administer the frost-heaving deformation occurred again, control is had both, ensure that Frozen Area roadbed safe and stable operation.
2, the moving component of the utility model device is few, and the solar power system that only compressor is carried by device is powered acting, be in fact a kind of can the heat lift device of independent operating.
3, the utility model structure is simple, economical rationality, long distance railway, Highways ' do not need supporting supply line to get final product long-term stable operation, can unmanned, be applicable to the frost failure preventing and treating seasonal frozen soil region railway, highway subgrade, compensate for the roadbed anti-freeze expansion engineering measure of existing seasonal frozen soil region with the deficiency of putting prevention first.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Fig. 1 is structural representation of the present utility model.
In figure: 1-photovoltaic cell group, 2-battery, 3-controller, 4-wire, 5-compressor, 6-high temperature steam pipe, 7-condenser, 8-expansion valve, 9-liquid refrigerant pipe, 10-evaporimeter, 11-Low Temperature Steam pipe, 12-one way valve.
Detailed description of the invention
As shown in Figure 1 (in figure, arrow direction is flow direction), prevent and treat a thawing apparatus of initiatively heating for seasonal frozen soil region roadbed frost damage disease, this device comprises the photovoltaic cell group 1, battery 2, the compressor 5 that are placed in earth's surface and is placed in the condenser 7 on seasonal frost heave stratum, is placed in the evaporimeter 10 of good ground.
Be provided with liquid refrigerant pipe 9 in evaporimeter 10, this liquid refrigerant pipe 9 is connected with condenser 7 by expansion valve 8; One end of compressor 5 is provided with high temperature steam pipe 6, is provided with Low Temperature Steam pipe 11 bottom it, and its other end is connected with battery 2 with photovoltaic cell group 1 respectively by wire 4 via controller 3; The end of high temperature steam pipe 6 stretches in condenser 7; Low Temperature Steam pipe 11 is provided with one way valve 12, and its end stretches in evaporimeter 10.
Wherein: evaporimeter 10 is installed in subgrade stability stratum with the form of perpendicularly buried pipe, can adopt high density polyethylene pipe, effect is the heat-transfer working medium carburation by evaporation making to flow into through one way valve 12, with the tow taste heat in Vapor recovery unit stratum.Good ground residing for evaporimeter 10 refers to the frozen soil stratum that do not affect roadbed or non-frozen soil stratum, also can realize thawing to heating of frost heave stratum when good ground temperature is lower than frost heave formation temperature.
Compressor 5, by solar power system powered operation, does work low-temp low-pressure heat-transfer working medium boil down to high temperature and high pressure steam, extracts and concentrates the tow taste heat of good ground.
Condenser 7 is installed in roadbed frost damage stratum with the form of perpendicularly buried pipe, high density polyethylene pipe can be adopted, the equipment of quantity of heat given up, the heat that the heat absorbed from evaporimeter 10 transforms together with compressor 5 consumed work is discharged in frost heave stratum with high-grade form of heat in condenser 7, the object that reaching heats thaws.
Expansion valve 8 pairs of heat-transfer working mediums play reducing pressure by regulating flow effect, and can regulate heat-transfer working medium flow according to the evaporimeter 10 end degree of superheat.
Heat-transfer working medium is ammonia or other working medium.
For the corrosive elements in water prevention, soil make evaporimeter 10, condenser 7 produces corrosion, need do anti-corrosion measures such as spraying paint on its top layer.
During use, at severe cold season, the endothermic gasification from good ground of the heat-transfer working medium in evaporimeter 10 becomes Low Temperature Steam; Then Low Temperature Steam enters compressor 5 through Low Temperature Steam pipe 11, and being done work by compressor 5 is compressed into the steam of HTHP, and high temperature and high pressure steam enters condenser 7 through high temperature steam pipe 6, and after the release heat of frost heave stratum, cooling condenses into cryogenic high pressure liquid; Low pressure, low temperature liquid is become to flow back to evaporimeter 10 by liquid refrigerant pipe 9 through expansion valve 8 throttling again.Constantly complete by allowing heat-transfer working medium: the thermodynamic cycle process of evaporation → compression → condensation → throttling → evaporate again, thus continue the tow taste heat in good ground to be converted into high-grade heat at cold season and be delivered in frost heave stratum, thaw effects of heating is played to the frost heave soil body.
Photovoltaic cell group 1 generates electricity having under light conditions, and solar energy is converted to electric energy, and by controller 3 powering load, accumulators group 2 is charged simultaneously; When unglazed photograph, provide required power supply by battery 2 for compressor 5 runs by controller 3.
Claims (1)
1. prevent and treat a thawing apparatus of initiatively heating for seasonal frozen soil region roadbed frost damage disease, it is characterized in that: this device comprises the photovoltaic cell group (1), battery (2), the compressor (5) that are placed in earth's surface and is placed in the condenser (7) on seasonal frost heave stratum, is placed in the evaporimeter (10) of good ground; Be provided with liquid refrigerant pipe (9) in described evaporimeter (10), this liquid refrigerant pipe (9) is connected with described condenser (7) by expansion valve (8); One end of described compressor (5) is provided with high temperature steam pipe (6), is provided with Low Temperature Steam pipe (11) bottom it, and its other end is connected with described battery (2) with described photovoltaic cell group (1) respectively by wire (4) via controller (3); The end of described high temperature steam pipe (6) stretches in described condenser (7); Described Low Temperature Steam pipe (11) is provided with one way valve (12), and its end stretches in described evaporimeter (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589549.4U CN204125812U (en) | 2014-10-13 | 2014-10-13 | A kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420589549.4U CN204125812U (en) | 2014-10-13 | 2014-10-13 | A kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease |
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| Publication Number | Publication Date |
|---|---|
| CN204125812U true CN204125812U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420589549.4U Expired - Fee Related CN204125812U (en) | 2014-10-13 | 2014-10-13 | A kind of thawing apparatus of initiatively heating preventing and treating seasonal frozen soil region roadbed frost damage disease |
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| CN (1) | CN204125812U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040744A (en) * | 2015-07-03 | 2015-11-11 | 湖南科技大学 | Thermal insulation device of foundation under plateau frozen earth condition and construction method of thermal insulation device |
| CN108224804A (en) * | 2018-03-13 | 2018-06-29 | 北京交通大学 | Towards the solar energy heat collector and implementation of seasonal frozen soil region subgrade engineering |
| CN108286840A (en) * | 2018-03-08 | 2018-07-17 | 北京交通大学 | Geothermal heat pump for preventing Frozen Area roadbed frost damage and implementation |
| CN108519477A (en) * | 2018-04-24 | 2018-09-11 | 西南科技大学 | A kind of frozen ground regions roadbed model pilot system |
| CN109440559A (en) * | 2018-12-12 | 2019-03-08 | 石家庄铁道大学 | Roadbed internal-circulation type solar-heating device and roadbed anti-freeze expansion method |
| RU2748086C1 (en) * | 2020-10-07 | 2021-05-19 | Елизавета Сергеевна Шараборова | Method of thermal stabilization of permafrost soils |
| CN113026463A (en) * | 2021-03-25 | 2021-06-25 | 中国科学院西北生态环境资源研究院 | Row-extrusion type anti-frost-heaving heat-gathering self-protection device and roadbed thereof |
-
2014
- 2014-10-13 CN CN201420589549.4U patent/CN204125812U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040744A (en) * | 2015-07-03 | 2015-11-11 | 湖南科技大学 | Thermal insulation device of foundation under plateau frozen earth condition and construction method of thermal insulation device |
| CN105040744B (en) * | 2015-07-03 | 2018-04-03 | 湖南科技大学 | The attemperator and its construction method of ground under the conditions of a kind of plateau permafrost |
| CN108286840A (en) * | 2018-03-08 | 2018-07-17 | 北京交通大学 | Geothermal heat pump for preventing Frozen Area roadbed frost damage and implementation |
| CN108224804A (en) * | 2018-03-13 | 2018-06-29 | 北京交通大学 | Towards the solar energy heat collector and implementation of seasonal frozen soil region subgrade engineering |
| CN108519477A (en) * | 2018-04-24 | 2018-09-11 | 西南科技大学 | A kind of frozen ground regions roadbed model pilot system |
| CN108519477B (en) * | 2018-04-24 | 2023-10-13 | 西南科技大学 | Seasonal frozen soil area roadbed model test system |
| CN109440559A (en) * | 2018-12-12 | 2019-03-08 | 石家庄铁道大学 | Roadbed internal-circulation type solar-heating device and roadbed anti-freeze expansion method |
| RU2748086C1 (en) * | 2020-10-07 | 2021-05-19 | Елизавета Сергеевна Шараборова | Method of thermal stabilization of permafrost soils |
| CN113026463A (en) * | 2021-03-25 | 2021-06-25 | 中国科学院西北生态环境资源研究院 | Row-extrusion type anti-frost-heaving heat-gathering self-protection device and roadbed thereof |
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| 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: 20150128 Termination date: 20151013 |
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| EXPY | Termination of patent right or utility model |