CN107354936A - A kind of vehicular earth material freezes prevention and control system - Google Patents
A kind of vehicular earth material freezes prevention and control system Download PDFInfo
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- CN107354936A CN107354936A CN201710789889.XA CN201710789889A CN107354936A CN 107354936 A CN107354936 A CN 107354936A CN 201710789889 A CN201710789889 A CN 201710789889A CN 107354936 A CN107354936 A CN 107354936A
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- disperse
- earth material
- prevention
- control system
- exhaust gas
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/11—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Road Paving Structures (AREA)
Abstract
The present invention relates to a kind of vehicular earth material to freeze prevention and control system, and the system includes being located at the exhaust emissions cylinder of earth material transport vehicle（1）The exhaust gas collector at place（2）And exhaust gas filter（3）, with the exhaust gas filter（3）Be connected the gas pressure applicator being located on headstock top surface（7）And with the gas pressure applicator（7）It is connected and is located at several disperse pipes of interior（5）；The disperse pipe（5）It is provided with several disperse holes to be shed for the hot gas that pressurizes（9）, the disperse hole（9）It is provided with protective cover（10）.The application of the present invention effectively can be heated up or be thawed to earth material using tail gas institute band heat in transit, earth material freezes prevention and control suitable for Han Qu and Frozen Area engineering construction, avoid freezing earth material and banket to engineering to bring compactness, permeability and intensity to be unsatisfactory for desired quality problems, and help to realize the continuous construction in low temperature environment.
Description
Technical field
The present invention relates to freezing soil prevention and control field, more particularly to a kind of vehicular earth material to freeze prevention and control system.
Background technology
Frozen soil be a kind of temperature be less than 0 DEG C and the Tu Yan containing ice, soil in moisture glaciation cause determinator for soil volume,
And the more non-frozen soil strength increase of intensity of frozen soil is a lot.When the temperature increases, frozen soil, which melts to be formed, melts soil, now soil body volume
Reduce, intensity can also reduce, permeability increase.
In China the north, western mountainous areas and Plateau Cold Area, seasonal frozen ground and ever-frozen ground are widely distributed, and area accounts for China
The 70% of the land gross area.In recent years, actively push forward with development of the West Regions, around relevant cold such as the energy, traffic, water conservancy
Area's Important Project is just progressively implemented in western mountainous areas and Plateau Cold Area.In these engineering construction processs of construction, inevitably
Frozen soil problems can be run into.Frozen soil problems not only have tremendous influence to engineering at the construction field (site), deposit the charge make-up area of earth material due to freezing
Native problem can also produce a very large impact to engineering safety and efficiency.
The soil body of charge make-up area freezes under low temperature bad border, forms frozen soil core.Volumetric expansion after freezing soil, intensity compared with
Non- frozen soil increase, this earth material for allowing for the charge make-up area are not easy to be compacted to the compactness of requirement after filling.The soil body of compacting
In after the frozen soil core that contains melts, its compactness reduces, and intensity reduces, permeability increase.So as to the stabilization to various structures
Property and security are brought and had a strong impact on, particularly disadvantageous to large hydraulic engineering.So in these project implementing process, either
Foundation engineering, dam body engineering etc. be required to forbid to freeze using earth material.Therefore, in seasonal frozen ground and permafrost distribution
Area, ensure that earth material nothing before filling is freezed for ensuring construction quality, shortening construction period, reduction construction costs in engineering construction
Have great importance and real needs.
At present, charge make-up area is mainly the passive prevention and control measure with " lid quilt " in cold regions engineering, and the material of selection is general
For geotextiles.This method effectively can prevent earth material from freezing under certain subzero temperature bad border, however, as environment temperature reduces soil
Material top layer will freeze, and the shortcomings that showing prevention and control efficiency deficiency, in addition also have following deficiency：（1）Geotextiles compared with
Weight and it is not carried out mechanical automation, needs a large amount of manpowers and time during covering；（2）Charge make-up area wind-force blows geotextiles when larger
Get up so that the measure loses heat insulation effect；（3）" lid quilt " is a kind of passive prevention and control measure, can only keep soil temperature, no
The soil body can be made to heat up, and because the covering of geotextiles causes emittance of the soil body from the sun using noon high intensity.
Therefore, in the construction process such as cryogenic period large-scale road engineering, Hydraulic and Hydro-Power Engineering, airport construction
Charge make-up area earth material freezes to form frozen soil core so that the soil body after filling can not reach the compactness of requirement, Intensity and permeability
Frozen soil problems, design a kind of earth material easy to implement, that the efficiency of heating surface is high and antifreezing effect is excellent and freeze prevention and control system, for true
Protect construction quality, raise labour efficiency, shortens the engineering construction cycle and reduce construction costs have great importance and reality need
Will.The application is exactly to be proposed to solve this kind of engineering roadblock.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of vehicular earth material and freeze prevention and control system, and it can transported
Defrosting or rise construction earth material temperature in journey, it is ensured that earth material of being marched into the arena under low temperature icing bad border does not freeze, to meet engineering construction
Work continuously, improve in journey the needs of engineering construction progress, and then solve Frozen soil problems of the prior art.
To solve the above problems, a kind of vehicular earth material of the present invention freezes prevention and control system, it is characterised in that：This is
System includes being located at the exhaust gas collector and exhaust gas filter at the exhaust emissions cylinder of earth material transport vehicle, is connected with the exhaust gas filter
Lead to the gas pressure applicator being located on headstock top surface and be connected with the gas pressure applicator and be located at several disperse pipes of interior；
The disperse pipe is provided with several disperse holes to be shed for the hot gas that pressurizes, and the disperse hole is provided with protective cover, and the protective cover is used
Enter the disperse pipe from the disperse hole in preventing earth material.
Preferably, all disperse pipes are parallel on box width direction is each provided at car bottom and/or interior
In the air；It is arranged on the aerial disperse pipe of interior and its rear portion is supported by support frame.
Preferably, the disperse hole on the direction of the disperse pipe favorable current by dredging close distribution.
Preferably, the exhaust gas collector including the use of when be socketed in the exhaust emissions cylinder end tail gas valve and will
Tail gas is delivered to the snorkel air door of the exhaust gas filter；When the tail gas valve air pressure inside is more than ambient pressure
When, the tail gas valve, which automatically opens up, sheds too high pressure.
Preferably, the snorkel is provided with the air door controlled by thermal switch, the thermal switch
It is connected with the temperature sensor being located on disperse pipe；When the temperature sensor measurement obtains the temperature of the disperse pipe higher than setting
During definite value, the thermal switch controls the air door to open.
Preferably, connected between the exhaust gas filter and the gas pressure applicator by the adiabatic connecting tube of tube wall.
Preferably, connected between the gas pressure applicator and the disperse pipe by telescoping tube and vertical duct；It is described flexible
Pipe is laterally set, and its one end connects the gas pressure applicator, the other end connects the upper port of the vertical duct；The vertical duct is tight
By compartment front inner wall, its lower port is communicated to the air inlet of all disperse pipes.
The present invention has advantages below compared with prior art：
1st, high-temperature tail gas directly contacts with earth material, improves heat utilization ratio
The truck tail gas of high temperature reaches the disperse pipe of interior via exhaust gas collector, exhaust gas filter, gas pressure applicator, then
It is directly entered from disperse hole in the space of compartment earth material, due to having in the gas pressure applicator pressure certain to tail gas and disperse pipe
The tail gas being continuously replenished, this causes tail gas to be flowed in earth material space, and then defrosting or rise construction earth material temperature.Compare existing
" lid quilt " method of technology, the present invention is time saving and energy saving, and both can guarantee that earth material was not freezed in transportation can also raise earth material
Temperature.Meanwhile high-temperature tail gas directly contacts with soil particle, and in its surface flow, heat convection effect occurs with soil particle, this
Improved with respect to conduction of heat heat utilization efficiency a lot.
2nd, loading and unloading earth material, and the small volume taken are not influenceed
Prevention and control system of the present invention only has several disperse pipes in interior, and miscellaneous part is in vehicle exterior；Moreover, disperse pipe
Diameter is smaller, therefore does not interfere with the earthwork of loading.
3rd, the soil body after constructing does not freeze for a long time, realizes Han Qu continuous construction
Earth material is heated to certain temperature in transit, does not influence normal construction；The soil body will be in a period of time after filling
It is interior to be kept for more than 0 DEG C, if next time filler when the layer banket and also keep more than 0 DEG C, so ensure that the company of cold regions engineering
Continuous construction, placement in layers interface linking quality can also be improved.In addition, fill good dam body or the heat energy of other grounds storage
It will be continuously increased, substantial amounts of heat energy can resist prolonged low temperature bad border.
4th, it is automatic pressure-controlled, do not influence to transport the normal work of car engine
On the basis of above-mentioned advantage, prevention and control system of the present invention further uses the tail gas of special exhaust gas collector and transport vehicle
Discharge drum is connected, and has a tail gas valve thereon, and when the tail gas of collection is excessive, the valve will automatically turn on, and make part tail
Gas reduces the air pressure that exhaust outlet goes out by the valve leak.
Brief description of the drawings
The embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of prevention and control system of the present invention.
Fig. 2 is the distribution schematic diagram in disperse hole on disperse pipe.
Fig. 3 is the structural representation of protective cover on disperse hole.
Fig. 4 is Fig. 3 side view.
Fig. 5 is structural representation when tail gas valve is closed in exhaust gas collector.
Fig. 6 is structural representation when tail gas valve is opened in exhaust gas collector.
Fig. 7 is the structural representation of exhaust gas filter.
Fig. 8 is the portion temperature change curve of diverse location earth material in compartment in experiment.
In figure：1-exhaust emissions cylinder, 2-exhaust gas collector, 3-exhaust gas filter, 4-connecting tube, 5-disperse pipe,
6-support frame, 7-gas pressure applicator, 8-telescoping tube, 9-disperse hole, 10-protective cover, 11-tail gas valve, 12-air
Valve, 13-snorkel, 14-vertical duct.
Embodiment
With reference to figure 1, vehicular earth material of the present invention freezes prevention and control system and is used on earth material transport vehicle, suitable for Han Qu or season
Section permafrost construction scene has the engineering of certain distance with charge make-up area, and it can specifically include the tail gas row for being located at earth material transport vehicle
The exhaust gas collector 2 and exhaust gas filter 3 at cylinder 1 are put, the gas being located on headstock top surface that is connected with the exhaust gas filter 3 adds
Depressor 7 and it is connected with the gas pressure applicator 7 and is located at several disperse pipes 5 of interior；Disperse pipe 5 is provided with several for adding
The disperse hole 9 that pressure hot gas sheds, disperse hole 9 is provided with protective cover 10.With reference to figure 2, to cause gas will not be in the leading portion of disperse pipe 5
Just run out of, disperse hole 9 is on the direction of the favorable current of disperse pipe 5 by dredging close distribution.
Above protective cover 10 is used to prevent earth material from entering disperse pipe 5 from disperse hole 9, and certainly, it can not influence the hot gas that pressurizes
Shed.Exhaust gas filter 3 is used for cleaning of off-gas, hot gas below is not produced pollution to earth material, influences earth material physical force
Learn property.Gas pressure applicator 7 is used to the hot gas from exhaust gas filter 3 being changed into gases at high pressure by low-pressure gas so that heat
Gas possesses high pressure, and being advantageous to pressurize, hot gas is follow-up to shed into the space of earth material.
In actual applications, disperse hole 9 may be provided in the side of disperse pipe 5, and corresponding protective cover 10 can use such as Fig. 3, Fig. 4
Shown structure, i.e. protective cover 10 are half of spheroid shape housing of lower openings, and size is more slightly larger than disperse hole 9, its top and two
Side is connected with the tube wall of disperse pipe 9, in practical application can use with the identical material of disperse pipe 9, be welded to connect between the two.Tail
Air filter 3 can use structure as shown in Figure 7, i.e. two pipe diameter of air inlet and outlet is small, is filled with filtering material
Interlude pipe diameter is bigger, and sufficient filtering material and filter space are advantageous to tail gas and sufficiently purified.Wherein, mistake
Filter material material is mainly used to adsorb the oily matter in imperfect combustion particulate matter and tail gas.
Wherein, connected between the air inlet of exhaust gas filter 3 and gas pressure applicator 7 by the adiabatic connecting tube 4 of tube wall.Gas
Connected between body pressurizer 7 and disperse pipe 5 by telescoping tube 8 and vertical duct 14；Telescoping tube 8 is overall laterally to be set, and its one end connects
The gas outlet of gas pressure applicator 7 is connect, the other end connects the upper port of vertical duct 14, and its guarantee, which has, when transport vehicle unloads soil extends foot
Enough length, is not pulled off, and ensures to be connected and do not turn off with gas pressure applicator 7 and vertical duct 14, the component in practical application
Spring extension tube can be used；Vertical duct 14 abuts compartment front inner wall, and its lower port is communicated to the air inlet of all disperse pipes 5.
Further, single disperse pipe 5 can be in strip, and compartment rear end is extended to from compartment front end（Headstock direction is
Front end, tailstock direction are rear end）, the front end of disperse pipe 5 is air inlet, rear end open.All disperse pipes 5 are in box width direction
It is above parallel to be each provided at car bottom, disperse pipe 5 can also be set in the air in interior, can also be located on railroad car lateral wall, or
These positions of person are respectively provided with, and this is determined according to demand for heat height and to the requirement degree of the influence degree of earth material loading and unloading
.The disperse pipe 5 aerial for being arranged on interior, tilt bottom-up at its front end airflow mouth, both for air inlet
It is also used for supporting itself anterior, its rear portion is supported by being arranged on the inclined support frame 6 of the back segment of disperse pipe 5, upper and lower two layers of disperse pipe 5
Form a trapezoidal shape.Wherein, disperse pipe 5 is arranged on compartment wall or bottom, it can be reduced to loading and unloading mode and time
Influence.
With reference to figure 5 and Fig. 6, exhaust gas collector 2 specifically can including the use of when be socketed in the tail gas of the end of exhaust emissions cylinder 1
Valve 11 and the snorkel 13 that tail gas is delivered to exhaust gas filter 3.When the air pressure inside of tail gas valve 11 is more than ambient pressure,
For example the tail gas collected is excessive, tail gas valve 11 can automatically open up, and partial tail gas is passed through the valve leak to reduce tail gas row
The air pressure at cylinder 1 is put, in order to avoid influence transport vehicle engine work.
Vary with temperature substantially in view of some earth material properties, to avoid earth material temperature too high, can be installed on disperse pipe 5
Temperature sensor, accordingly on snorkel 13 set by thermal switch control air door 12, thermal switch with
Electric signal communication between temperature sensor, it is higher than certain design temperature when temperature sensor measures the temperature of disperse pipe 5（Can be according to earth material
Property setting）When, air door 12 is opened under the control of thermal switch, and suction air makes earth material maintain certain temperature
Degree.
Above prevention and control system is now tested in two river mouth Hydropower Station Constructions, and demonstrate the prevention and control system has preferably to earth material
Heating effect, particular content is as follows：The earth material transport vehicle of mouth Hydropower Station Construction is reequiped in this experiment, and loads the dam body heart in the car
Wall needs the gravelly soil filled.For the ease of observation, the car is parked in same position and keeps launch state, and controls now
Fuel consumption is identical with normal transport way.This on-test, test period was 1 small when evening local temperature begins lower than 0 DEG C
When.Earth material transport vehicle dress soil height is 2.5m, places two groups of temp probes during experiment in coating, every group four, the depth of burying
It is 0cm, 33cm, 66cm, 100cm, respectively positioned at the front portion of compartment longitudinal central axis line and afterbody.Test obtained portion temperature
For curve referring to Fig. 8, result of the test shows that the prevention and control system has the effect of the heating soil body well.
Claims (7)
1. a kind of vehicular earth material freezes prevention and control system, it is characterised in that：The system includes being located at the tail gas row of earth material transport vehicle
Put cylinder（1）The exhaust gas collector at place（2）And exhaust gas filter（3）, with the exhaust gas filter（3）It is connected and is located on headstock top surface
Gas pressure applicator（7）And with the gas pressure applicator（7）It is connected and is located at several disperse pipes of interior（5）；It is described more
Separate tube（5）It is provided with several disperse holes to be shed for the hot gas that pressurizes（9）, the disperse hole（9）It is provided with protective cover（10）, this is anti-
Protecting cover（10）For preventing earth material from the disperse hole（9）Into the disperse pipe（5）.
2. prevention and control system as claimed in claim 1, it is characterised in that：All disperse pipes（5）On box width direction
It is parallel to be each provided at car bottom and/or interior is aerial；It is arranged on the aerial disperse pipe of interior（5）By support frame
（6）Support its rear portion.
3. prevention and control system as claimed in claim 1, it is characterised in that：The disperse hole（9）In the disperse pipe（5）Favorable current
Direction on by dredging close distribution.
4. the prevention and control system as described in claims 1 to 3 any one, it is characterised in that：The exhaust gas collector（2）Including making
Used time is socketed in the exhaust emissions cylinder（1）The tail gas valve of end（11）The exhaust gas filter is delivered to by tail gas（3）
Snorkel（13）；When the tail gas valve（11）When air pressure inside is more than ambient pressure, the tail gas valve（11）Automatically beat
Start discharging too high pressure.
5. prevention and control system as claimed in claim 4, it is characterised in that：The snorkel（13）It is provided with by thermal switch
The air door of control（12）, the thermal switch is with being located at disperse pipe（5）On temperature sensor be connected；When the temperature
Degree sensor measurement obtains the disperse pipe（5）Temperature when being higher than setting value, the thermal switch controls the air
Valve（12）Open.
6. prevention and control system as claimed in claim 1, it is characterised in that：The exhaust gas filter（3）With the gas pressure applicator
（7）Between pass through the adiabatic connecting tube of tube wall（4）Connection.
7. prevention and control system as claimed in claim 1, it is characterised in that：The gas pressure applicator（7）With the disperse pipe（5）It
Between pass through telescoping tube（8）And vertical duct（14）Connection；The telescoping tube（8）Laterally set, its one end connects the gas pressurized
Device（7）, the other end connect the vertical duct（14）Upper port；The vertical duct（14）Against compartment front inner wall, its lower end
Mouth is communicated to all disperse pipes（5）Air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789889.XA CN107354936B (en) | 2017-09-05 | 2017-09-05 | Vehicle-mounted earth material freezing prevention and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710789889.XA CN107354936B (en) | 2017-09-05 | 2017-09-05 | Vehicle-mounted earth material freezing prevention and control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107354936A true CN107354936A (en) | 2017-11-17 |
| CN107354936B CN107354936B (en) | 2020-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710789889.XA Active CN107354936B (en) | 2017-09-05 | 2017-09-05 | Vehicle-mounted earth material freezing prevention and control system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209604A (en) * | 1991-04-09 | 1993-05-11 | Shell Oil Company | Soil decontamination |
| CN2550512Y (en) * | 2002-07-09 | 2003-05-14 | 陕西秦川畅通公路机械开发有限公司 | Pitch mixture heater by automobile engine tail gas |
| CN2764817Y (en) * | 2005-02-18 | 2006-03-15 | 范维义 | Multifunctional snow remover |
| CN201405699Y (en) * | 2008-12-29 | 2010-02-17 | 北京中冀福庆专用车有限公司 | Device for heating carriage by using tail gas of engine |
| CN201933456U (en) * | 2011-01-24 | 2011-08-17 | 马军 | Road ice and snow removing device used on automobile |
| CN202157294U (en) * | 2011-06-10 | 2012-03-07 | 中国一拖集团有限公司 | High-temperature high-pressure air outlet pipe device for ice-melting drying device of snow removing vehicle |
| CN205530214U (en) * | 2016-01-19 | 2016-08-31 | 中国水利水电第五工程局有限公司 | Broken rising temperature device of frozen soil |
| CN207211126U (en) * | 2017-09-05 | 2018-04-10 | 中国科学院寒区旱区环境与工程研究所 | A kind of vehicular earth material freezes active prevention and control device |
-
2017
- 2017-09-05 CN CN201710789889.XA patent/CN107354936B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5209604A (en) * | 1991-04-09 | 1993-05-11 | Shell Oil Company | Soil decontamination |
| CN2550512Y (en) * | 2002-07-09 | 2003-05-14 | 陕西秦川畅通公路机械开发有限公司 | Pitch mixture heater by automobile engine tail gas |
| CN2764817Y (en) * | 2005-02-18 | 2006-03-15 | 范维义 | Multifunctional snow remover |
| CN201405699Y (en) * | 2008-12-29 | 2010-02-17 | 北京中冀福庆专用车有限公司 | Device for heating carriage by using tail gas of engine |
| CN201933456U (en) * | 2011-01-24 | 2011-08-17 | 马军 | Road ice and snow removing device used on automobile |
| CN202157294U (en) * | 2011-06-10 | 2012-03-07 | 中国一拖集团有限公司 | High-temperature high-pressure air outlet pipe device for ice-melting drying device of snow removing vehicle |
| CN205530214U (en) * | 2016-01-19 | 2016-08-31 | 中国水利水电第五工程局有限公司 | Broken rising temperature device of frozen soil |
| CN207211126U (en) * | 2017-09-05 | 2018-04-10 | 中国科学院寒区旱区环境与工程研究所 | A kind of vehicular earth material freezes active prevention and control device |
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| Publication number | Publication date |
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| CN107354936B (en) | 2020-06-02 |
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Effective date of registration: 20201009 Address after: 730000 No.318, Donggang West Road, Chengguan District, Lanzhou City, Gansu Province Patentee after: NORTHWEST INSTITUTE OF ECO-ENVIRONMENT AND RESOURCES, CAS Address before: 730000 Gansu city of Lanzhou province Donggang West Road No. 320 Patentee before: Institute of environment and Engineering in cold and dry areas, Chinese Academy of Sciences |