CN205857136U - A kind of channel thermal-insulating leakage-resistant plate - Google Patents
A kind of channel thermal-insulating leakage-resistant plate Download PDFInfo
- Publication number
- CN205857136U CN205857136U CN201620559424.6U CN201620559424U CN205857136U CN 205857136 U CN205857136 U CN 205857136U CN 201620559424 U CN201620559424 U CN 201620559424U CN 205857136 U CN205857136 U CN 205857136U
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- Prior art keywords
- main body
- styrofoam
- plate
- heating wire
- channel thermal
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- Expired - Fee Related
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- 229920006328 Styrofoam Polymers 0.000 claims abstract description 47
- 239000008261 styrofoam Substances 0.000 claims abstract description 47
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 239000002689 soil Substances 0.000 claims abstract description 37
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 9
- 239000004744 fabric Substances 0.000 claims description 16
- 239000004746 geotextile Substances 0.000 claims description 16
- 238000004026 adhesive bonding Methods 0.000 claims description 11
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 239000002390 adhesive tape Substances 0.000 claims description 6
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 3
- 230000036413 temperature sense Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 6
- 238000007711 solidification Methods 0.000 abstract description 6
- 230000008023 solidification Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 13
- 238000009413 insulation Methods 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 239000003673 groundwater Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 230000002262 irrigation Effects 0.000 description 3
- 238000003973 irrigation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 235000008429 bread Nutrition 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- -1 volumetric expansion Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
This utility model relates to a kind of channel thermal-insulating leakage-resistant plate, and including styrofoam main body, the inside of described styrofoam main body is provided with hollow-out layer, is equipped with heating wire in described hollow-out layer；The outer surface of described styrofoam main body is enclosed with impervious barrier.The beneficial effects of the utility model are: described channel thermal-insulating leakage-resistant plate passes through the setting of styrofoam material of main part, the design of hollow-out layer and the addition of heating wire, the temperature making Canal Base soil from multiple angles is maintained at more than solidification point, thoroughly prevent frost-heaving deformation, it is to avoid the Canal Base soil frost heave protuberance destruction to canal lining structure sheaf.
Description
Technical field
This utility model belongs to channel guard technology field, is specifically related to a kind of channel thermal-insulating leakage-resistant plate.
Background technology
In frozen ground regions, field irrigation water-drawing channel swells because of base soil frost heave, makes canal lining structure sheaf suffer
Destroying, that brings irrigated area operation is very harmful.The mechanism of canal frost heave is the subzero temperature condition in the winter time of the moisture in fine-grained soil
Lower condensation becomes ice crystal, volumetric expansion, soil volume dilatancy therewith, canal lining structure is produced frost-heave force, is allowed to destroy.
The solar irradiation accepted due to each position of canal cross section is uneven, and lining cutting surface temperature is different, and canal cross section each position base soil freezes
Junction depth and frost heave degree are the most different, at the bottom of general canal and Schattenseite is more than tailo, damage of lining with at the bottom of canal and at lower slope 1/3
For seriously.
As long as traditional method alleviating canal frost heave is started with from improving canal bed soil property minimizing soil moisture, to alleviate
The frost heave degree of base soil, makes liner structure adapt to the frost-heaving deformation of base soil.Including: 1. channel is arranged in correct planning, to the greatest extent may be used
Can make to exceed at the bottom of canal the distance of level of ground water and add groundwater level, on freezing layer, do not occur facing of appreciable impact not less than freezing layer depth
Boundary's degree of depth；2. displacement canal bed soil, as native with sandy gravel displacement frost heave base；3. drainage system is laid, as big in subsoil water buried depth
When engineering design frost penetration, at the bottom of canal at interval of 10～20m, a blind shaft is set, is beneficial to base soil layer draining；4. arrange
Heat-insulation layer, as laid rigid foam insulation board to large channel under impervious barrier；The most rationally select lining types, such as section
Using arc earth overvoltage, Small Canal to use U-shaped etc., lining types uses concrete prefabricated board or cast in place concrete plate etc..
Traditional method alleviates canal frost heave and destroys, but frost heaving failure remains agricultural irrigation area, present north cold area canal
The Major Diseases in road, the most then reduce irrigation efficiency, and heavy then breaking-up channel is not normally functioning.Various engineering measures all cannot be effected a radical cure
Channel exempts from destruction due to frost heave.When channel is arranged in planning, it is not less than to reach to exceed at the bottom of canal the distance of level of ground water
Freeze layer depth and add the groundwater level critical depth on freezing layer and do not occur appreciable impact, channel circuit can be made to increase, construction costs
Increase with operating cost；Displacement canal bed soil also can increase construction costs, is limited, the most not by changing material resource of banketing simultaneously
Possessing and change the condition filled out, even if having the condition of filling out of changing, substantial amounts of exploitation is changed the material that bankets and is also brought along the problems such as environmental disruption；Set up
Draining blind shaft is limited by underground hydrological geological conditions, and limitation is the biggest；Traditional method arranging heat-insulation layer is due to heat-insulation layer
In base soil under the effect of long-term outer water, insulation material hole water-filling so that it is heat conductivity increases, heat insulation effect reduces.
Utility model content
In order to solve the problems referred to above that prior art exists, this utility model provides a kind of channel thermal-insulating leakage-resistant plate.Institute
State channel thermal-insulating leakage-resistant plate by arranging heat-insulation layer, and heating wire is set in heat-insulation layer, it is ensured that the temperature of Canal Base soil is at ice
More than Dian, it is to avoid the Canal Base soil frost heave protuberance destruction to canal lining structure sheaf.
The technical scheme that this utility model is used is:
A kind of channel thermal-insulating leakage-resistant plate, including styrofoam main body, the inside of described styrofoam main body is provided with hollow-out layer, described
Heating wire it is equipped with in hollow-out layer；The outer surface of described styrofoam main body is enclosed with impervious barrier.
This utility model uses the little insulation material styrofoam of heat conductivity as material of main part, slows down Canal Base soil with cold
The cold heat exchange between air, makes Canal Base soil thermal losses slow down, and ground temperature reduces and slows down, meanwhile, and the air in hollow-out layer
Further reduce the heat conductivity of described styrofoam main body, make Canal Base soil thermal losses slow down further；Adding of heating wire
Heat can give Canal Base soil additional heat in time so that it is temperature is maintained at more than solidification point, thoroughly prevents frost-heaving deformation；With
Time, the outer surface of styrofoam main body is enclosed with impervious barrier, and described impervious barrier can stop outer water to immerse styrofoam main body and reduce
The effect of heat-insulating property, it may have the effect of the anti-seepage of channels.
For convenience of processing and installation heating wire, preferred technical scheme is, described styrofoam includes upper plate and lower plate,
Described upper plate and lower plate are by gluing connection；The seam crossing of described upper plate and lower plate forms described hollow-out layer.By arranging upper plate
With the mode of lower plate bonding splicing, facilitate production and processing, improve installation effectiveness.
According to an embodiment of the present utility model, the contact surface of described upper plate and/or lower plate is provided with square projection, described
Space between square projection forms latticed hollow-out layer；Described upper plate and lower plate are by being arranged on the double faced adhesive tape of square projection
Gluing connection, the area of described double faced adhesive tape is more than described upper plate and the 30% of lower plate contact area.With ensure described upper plate and under
Harden the stability closed.
Described heating wire uses serpentine wire to be laid in described hollow-out layer, and uses line card to fix, described heating wire
Two ends pass styrofoam main body；The turning of the corresponding described heating wire of described square projection is provided with rounded corner.
The edge of described lower plate offers wire guide, and the hole wall of described wire guide is provided with plastic flexible pipe, and described plastics are soft
Pipe covers the hole wall of described wire guide and to the outside extension of described wire guide, and the two ends of described heating wire are soft by described plastics
Pipe passes described styrofoam main body.
Above-mentioned setting, it is to avoid overflexing occurs when coiling in heating wire, and then affects service life.
The material of described impervious barrier is geotextiles.
Described geotextiles is a cloth one film geotextiles, and the cloth of a described cloth one film geotextiles faces outwardly, described cloth one film
The face of geotextiles is inwardly.Cloth cover is arranged on outside, primarily serves the effect increasing geotextiles intensity, and protection face occurs without brokenly
Damage, extend the service life of geotextiles；And face is inwardly, primarily serve the effect of antiseepage.
The thickness of described styrofoam main body is 50-80mm, and the thickness of described upper plate is 30-50mm；The thickness of described lower plate
For 20-30mm.
In order to save energy resource consumption, controlling described Canal Base soil temperature, preferred technical scheme is simultaneously, and described channel is protected
Temperature barrier sheet also includes that controller and temperature inductor, described controller electrically connect with described heating wire, described controller and temperature
Degree induction apparatus signal connects；
Described temperature inductor is for measuring the temperature of Canal Base soil, and temperature signal passes to controller, controller
Accept the temperature signal of described temperature inductor, and control the keying of described heating wire.
A kind of control mode of the present utility model is: when the temperature of described Canal Base soil is less than 0 DEG C, described heating wire opens
Dynamic, make the temperature of Canal Base soil be maintained at more than solidification point, thoroughly prevent frost-heaving deformation, when the temperature of described Canal Base soil is high
In 6 DEG C time, heating wire is closed, and reduces the waste of the energy.
Laying for adapting to large-area channel, preferred technical scheme is, the number of described styrofoam main body is multiple, many
Individual described styrofoam main body tiles setting side by side, and the impervious barrier of adjacent described styrofoam body exterior is by gluing connection.Multiple
The mode of described styrofoam body combination, it is simple to process and transport, simultaneously by gluing connection between styrofoam main body, it is possible to rises
Effect to antiseepage.
The beneficial effects of the utility model are:
1, this utility model provides a kind of channel thermal-insulating leakage-resistant plate, by setting, the hollow-out layer of styrofoam material of main part
Design and the addition of heating wire, make from multiple angles the temperature of Canal Base soil be maintained at more than solidification point, thoroughly prevent from freezing
Bulging deformation, it is to avoid the Canal Base soil frost heave protuberance destruction to canal lining structure sheaf.
2, described styrofoam main body is spliced by described upper plate is parallel with lower plate, facilitates production and processing, improves
Installation effectiveness, the design of the most square projection, wire guide and plastic flexible pipe, it is to avoid heating wire occurs the most curved when coiling
Folding, and then affect service life.
3, this utility model selects geotextiles as impervious barrier, while playing antiseepage effect, too increases described anti-
The intensity of infiltration layer, extends the service life of described channel thermal-insulating leakage-resistant plate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial enlarged drawing of A in Fig. 1；
Fig. 3 is the scheme of installation of lower plate and heating wire；
Fig. 4 is the sectional front view of lower plate.
In figure: 1, styrofoam main body；11, hollow-out layer；12, upper plate；13, lower plate；14, square projection；15, wire guide；16、
Plastic flexible pipe；2, heating wire；3, impervious barrier；4, seal cover board.
Detailed description of the invention
Below in conjunction with embodiment, further illustrate present disclosure.Should be appreciated that the enforcement of the present invention is not limited to
In the following examples, any pro forma accommodation and/or the change of being made the present invention fall within scope.
As it is shown in figure 1, this utility model provides a kind of channel thermal-insulating leakage-resistant plate, including styrofoam main body 1, described poly-
The inside of benzene plate main body 1 is provided with hollow-out layer 11, is equipped with heating wire 2 in described hollow-out layer 11；The appearance of described styrofoam main body 1
Bread is wrapped with impervious barrier 3.
Use the little insulation material styrofoam of heat conductivity as material of main part, slow down Canal Base soil and cold air it
Between heat exchange, make Canal Base soil thermal losses slow down, ground temperature reduce slow down, meanwhile, the air in hollow-out layer 11 subtracts further
The little heat conductivity of described styrofoam main body 1, makes Canal Base soil thermal losses slow down further；The heating of heating wire 2 is permissible
Give Canal Base soil additional heat in time so that it is temperature is maintained at more than solidification point, thoroughly prevents frost-heaving deformation；Meanwhile, polyphenyl
The outer surface of plate main body 1 is enclosed with impervious barrier 3, and described impervious barrier 3 can stop outer water to immerse styrofoam main body 1 and reduce insulation
The effect of performance, it may have the effect of the anti-seepage of channels.
Further, as shown in Figure 2, Figure 3 and Figure 4, for convenience of processing and installation heating wire 2, described styrofoam bag
Including upper plate 12 and lower plate 13, described upper plate 12 and lower plate 13 are by gluing connection；Described upper plate 12 and the seam crossing shape of lower plate 13
Become described hollow-out layer 11.By the way of upper plate 12 and lower plate 13 bonding splicing are set, facilitate production and processing, improve peace
Dress efficiency.
The contact surface of described upper plate 12 and/or lower plate 13 is provided with square protruding 14, the space between described square protruding 14
Form latticed hollow-out layer 11；Described upper plate 12 and lower plate 13 by being arranged on the square gluing connection of the double faced adhesive tape of protruding 14,
The area of described double faced adhesive tape is more than described upper plate 12 and the 30% of lower plate 13 contact area.To ensure described upper plate 12 and lower plate 13
In conjunction with stability.
Described heating wire 2 uses serpentine wire to be laid in described hollow-out layer 11, and uses line card to fix, described heating wire
The two ends of 2 pass styrofoam main body 1；The turning of described square protruding 14 corresponding described heating wire 2 is provided with rounded corner.
The edge of described lower plate 13 offers wire guide 15, and the hole wall of described wire guide 15 is provided with plastic flexible pipe 16, institute
State plastic flexible pipe 16 and cover the hole wall of described wire guide 15 and to the outside extension of described wire guide 15, the two of described heating wire 2
End passes described styrofoam main body 1 by described plastic flexible pipe 16；The outward opening of described wire guide 15 is provided with seal cover board.
Above-mentioned setting, it is to avoid overflexing occurs when coiling in heating wire, and then affects service life.
The material one cloth one film geotextiles of described impervious barrier 3, the cloth of a described cloth one film geotextiles faces outwardly, a described cloth
The face of one film geotextiles is inwardly.Cloth cover is arranged on outside, primarily serves the effect increasing geotextiles intensity, and protection face does not goes out
Existing breakage, extends the service life of geotextiles；And face is inwardly, primarily serve the effect of antiseepage.
The thickness of described styrofoam main body 1 is 50-80mm, and the thickness of described upper plate 12 is 30-50mm；Described lower plate 13
Thickness is 20-30mm.
In order to save energy resource consumption, controlling described Canal Base soil temperature, described channel thermal-insulating leakage-resistant plate also includes control simultaneously
Device processed and temperature inductor, described controller electrically connects with described heating wire 2, and described controller and temperature inductor signal are even
Connect；Described temperature inductor is for measuring the temperature of Canal Base soil, and temperature signal passes to controller, and controller accepts institute
State the temperature signal of temperature inductor, and control the keying of described heating wire 2.
When the temperature of described Canal Base soil is less than 0 DEG C, described heating wire 2 starts, and makes the temperature of Canal Base soil be maintained at
More than solidification point, thoroughly preventing frost-heaving deformation, when the temperature of described Canal Base soil is higher than 6 DEG C, heating wire 2 is closed,
Reduce the waste of the energy.
Laying for adapting to large-area channel, preferred technical scheme is, the number of described styrofoam main body 1 is multiple,
Multiple described styrofoam main bodys 1 tile setting side by side, and the impervious barrier 3 outside adjacent described styrofoam main body 1 is by gluing connection.
The mode of multiple described styrofoam main bodys 1 combination, it is simple to process and transport, simultaneously by gluing connection between styrofoam main body 1,
The effect of antiseepage can be played.
It should be noted last that, above example is only in order to illustrate the technical solution of the utility model and unrestricted, to the greatest extent
This utility model has been described in detail by pipe with reference to preferred embodiment, be it should be understood that and the foregoing is only this practicality newly
The detailed description of the invention of type, is not used to limit protection domain of the present utility model, all in spirit of the present utility model and
Within principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (10)
1. a channel thermal-insulating leakage-resistant plate, it is characterised in that include styrofoam main body (1), the inside of described styrofoam main body (1)
It is provided with hollow-out layer (11), in described hollow-out layer (11), is equipped with heating wire (2)；The outer surface parcel of described styrofoam main body (1)
There is impervious barrier (3).
Channel thermal-insulating leakage-resistant plate the most according to claim 1, it is characterised in that described styrofoam include upper plate (12) and under
Plate (13), described upper plate (12) and lower plate (13) are by gluing connection；The seam crossing of described upper plate (12) and lower plate (13) is formed
Described hollow-out layer (11).
Channel thermal-insulating leakage-resistant plate the most according to claim 2, it is characterised in that connecing of described upper plate (12) and lower plate (13)
Contacting surface is provided with multiple square projection (14), and the space between described square projection (14) forms latticed hollow-out layer (11)；Institute
Stating upper plate (12) and lower plate (13) by being arranged on the gluing connection of double faced adhesive tape of square projection (14), the area of described double faced adhesive tape is big
In described upper plate (12) and the 30% of lower plate (13) contact area.
Channel thermal-insulating leakage-resistant plate the most according to claim 3, it is characterised in that described heating wire (2) uses serpentine wire
Being laid in described hollow-out layer (11), and use line card to fix, the two ends of described heating wire (2) pass styrofoam main body (1)；Institute
The turning stating the corresponding described heating wire of square projection (14) (2) is provided with rounded corner.
Channel thermal-insulating leakage-resistant plate the most according to claim 4, it is characterised in that the edge of described lower plate (13) offers
Wire guide (15), the hole wall of described wire guide (15) is provided with plastic flexible pipe (16), and described plastic flexible pipe (16) covers described wire
The hole wall in hole (15) extension outside described wire guide (15), described plastic flexible pipe is passed through at the two ends of described heating wire (2)
(16) described styrofoam main body (1) is passed.
Channel thermal-insulating leakage-resistant plate the most according to claim 1, it is characterised in that the material of described impervious barrier (3) is geotechnique
Cloth.
Channel thermal-insulating leakage-resistant plate the most according to claim 6, it is characterised in that described geotextiles is a cloth one film geotechnique
Cloth, the cloth of a described cloth one film geotextiles faces outwardly, and the face of a described cloth one film geotextiles is inwardly.
Channel thermal-insulating leakage-resistant plate the most according to claim 2, it is characterised in that the thickness of described styrofoam main body (1) is
50-80mm, the thickness of described upper plate (12) is 30-50mm；The thickness of described lower plate (13) is 20-30mm.
9. according to the arbitrary described channel thermal-insulating leakage-resistant plate of claim 1-8, it is characterised in that also include controller and temperature sense
Answering device, described controller to electrically connect with described heating wire (2), described controller and temperature inductor signal connect；
Described temperature inductor is for measuring the temperature of Canal Base soil, and temperature signal passes to controller, and controller accepts
The temperature signal of described temperature inductor, and control the keying of described heating wire (2).
Channel thermal-insulating leakage-resistant plate the most according to claim 1, it is characterised in that the number of described styrofoam main body (1) is
Multiple, multiple described styrofoam main bodys (1) are tiled setting side by side, and the impervious barrier (3) that adjacent described styrofoam main body (1) is outside leads to
Cross gluing connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620559424.6U CN205857136U (en) | 2016-06-08 | 2016-06-08 | A kind of channel thermal-insulating leakage-resistant plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620559424.6U CN205857136U (en) | 2016-06-08 | 2016-06-08 | A kind of channel thermal-insulating leakage-resistant plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205857136U true CN205857136U (en) | 2017-01-04 |
Family
ID=57639690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620559424.6U Expired - Fee Related CN205857136U (en) | 2016-06-08 | 2016-06-08 | A kind of channel thermal-insulating leakage-resistant plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN205857136U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884426A (en) * | 2017-04-17 | 2017-06-23 | 中水东北勘测设计研究有限责任公司 | A kind of large channel base soil heat-preserving anti-freezing method |
| CN110359481A (en) * | 2019-07-26 | 2019-10-22 | 东北大学 | A kind of insulating layer and the swollen system of the integrated heat-preserving anti-freezing of heating tube and implementation method |
| CN111719509A (en) * | 2020-06-05 | 2020-09-29 | 西北农林科技大学 | Heat-preservation anti-frost-heaving phase-change heat-insulation board for foundation soil of canal in salt cold region |
-
2016
- 2016-06-08 CN CN201620559424.6U patent/CN205857136U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106884426A (en) * | 2017-04-17 | 2017-06-23 | 中水东北勘测设计研究有限责任公司 | A kind of large channel base soil heat-preserving anti-freezing method |
| CN110359481A (en) * | 2019-07-26 | 2019-10-22 | 东北大学 | A kind of insulating layer and the swollen system of the integrated heat-preserving anti-freezing of heating tube and implementation method |
| CN111719509A (en) * | 2020-06-05 | 2020-09-29 | 西北农林科技大学 | Heat-preservation anti-frost-heaving phase-change heat-insulation board for foundation soil of canal in salt cold region |
| CN111719509B (en) * | 2020-06-05 | 2021-12-24 | 西北农林科技大学 | Heat-preservation anti-seepage anti-frost-heaving method for heat-preservation anti-frost-heaving phase-change heat-preservation plate for foundation soil of canal in salt cold region |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170524 Address after: 730000 Anning District, Gansu, Lanzhou Camp Village Gate No. 1 Patentee after: Gansu Agricultural University Address before: Red mountain in Chengguan District of city of Lanzhou province Gansu 730000 West Road No. 56 602 Patentee before: Xu Jian |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170104 Termination date: 20170608 |