CN106894819A - Vertical shaft difference freezing plant - Google Patents
Vertical shaft difference freezing plant Download PDFInfo
- Publication number
- CN106894819A CN106894819A CN201710227035.2A CN201710227035A CN106894819A CN 106894819 A CN106894819 A CN 106894819A CN 201710227035 A CN201710227035 A CN 201710227035A CN 106894819 A CN106894819 A CN 106894819A
- Authority
- CN
- China
- Prior art keywords
- outer tube
- external diameter
- vertical shaft
- inner tube
- freezing plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000008014 freezing Effects 0.000 title claims abstract description 30
- 238000007710 freezing Methods 0.000 title claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 30
- 238000009413 insulation Methods 0.000 claims abstract description 17
- 230000008676 import Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 2
- 229910021529 ammonia Inorganic materials 0.000 claims 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims 1
- 238000005187 foaming Methods 0.000 claims 1
- -1 poly- ammonia Ester Chemical class 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 4
- 238000002955 isolation Methods 0.000 abstract description 4
- 238000004904 shortening Methods 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 19
- 238000005755 formation reaction Methods 0.000 description 19
- 239000004576 sand Substances 0.000 description 14
- 239000002689 soil Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 235000015110 jellies Nutrition 0.000 description 2
- 239000008274 jelly Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D1/00—Sinking shafts
- E21D1/10—Preparation of the ground
- E21D1/12—Preparation of the ground by freezing
- E21D1/14—Freezing apparatus
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention belongs to underground engineering construction servicing unit field, specifically related to a kind of vertical shaft difference freezing plant, including inner and outer tubes, outer tube sleeve is outside inner tube, increase the external diameter at the middle part of outer tube, make the middle part of outer tube external diameter it is big to its upper and bottom external diameter, be surrounded by heat-insulation layer in the periphery on the top of outer tube, bottom, the external diameter of heat-insulation layer is identical with the external diameter in the middle part of outer tube；The top of inner tube has freezes liquid inlet, has the runner connected with outer tube in the bottom of inner tube；The top of outer tube, bottom are closed, and its top has freezes liquid liquid return hole.Difference can be carried out by the present invention to underground ground to freeze, region that is small to water content, need not freezing carries out low-temperature receiver isolation, reduce low-temperature receiver loss, improve the effective rate of utilization of low-temperature receiver, the region big to underground water content, the liquid residence time is freezed in increase outer tube contact area, extension, and the final ground freeze-off time, raising of shortening freezes efficiency, enhancing underground ground freezing efficiency.
Description
Technical field
The present invention relates to a kind of vertical shaft difference freezing plant, belong to underground engineering construction servicing unit field.
Background technology
Freezing process is usually used in work shaft, and it is a kind of method manually freezed, around the underground space to be excavated
Water in loose aqueous ground freezes to be ice and cemented together with ground, becomes frozen soil, is used to resist soil pressure, completely cuts off underground
Water, and under the protection of frozen soil, carry out underground engineering construction.But ground is frozen in freezing process is applied into work shaft
During knot, it usually needs 50~60 days, the duration of freezing of ground is very long, and project progress is have impact on to a certain extent.
The content of the invention
The technical problem to be solved in the present invention is：Overcome deficiency of the prior art, there is provided a kind of to improve low-temperature receiver
Effective rate of utilization, shorten ground freeze-off time, raising and freeze the vertical shaft difference freezing plant of efficiency.
Vertical shaft difference freezing plant of the present invention, including inner and outer tubes, outer tube sleeve increase outer tube outside inner tube
The external diameter at middle part, make the middle part of outer tube external diameter it is big to its upper and bottom external diameter, in the top of outer tube, bottom (i.e. outer tube
The small position of external diameter) periphery be surrounded by heat-insulation layer, the external diameter of heat-insulation layer is outer with outer tube middle part (i.e. the small position of outer tube external diameter)
Footpath is identical；The top of inner tube has freezes liquid inlet, has the runner connected with outer tube in the bottom of inner tube；The top of outer tube
Portion, bottom are closed, and its top has freezes liquid liquid return hole.Wherein, the overall wall thickness of outer tube is identical.
The present invention is improved the outer tube structure in traditional freezing plant according to the composition of current underground ground, over the ground
Lower ground carries out difference to be freezed, and is exactly, in the big region of underground water content, to strengthen freezing efficiency generally speaking, small to water content
Region, carry out partial freezing, isolation low-temperature receiver in place's need not be freezed to residue, it is unnecessary cold so as to largely avoid
The loss of source energy, is improved the effective rate of utilization of low-temperature receiver, while shortening the freeze-off time of underground ground, improves jelly
Junction efficiency.Careful elaboration is carried out to the present invention with reference to the composition of underground ground：
At present, underground ground is generally made up of the sedimentary type formations of the loess formation on top, the layer of sand at middle part and bottom, wherein,
The water content of loess formation and sedimentary type formations is relatively fewer, will not produce influence, but the water content in layer of sand substantially on work shaft
(loess formation and the water content of sedimentary type formations closed on layer of sand are also of a relatively high) very high, this is to cause the work shaft cannot to construct
Topmost reason.The present invention is directed to this case, and freezing plant China and foreign countries tubular construction is improved, in increasing outer tube
The external diameter in portion, makes outer tube form middle part external diameter big, top and the small structure of lower outer diameter, in concrete application, in making outer tube
Part loess formation that portion is closed on layer of sand and with layer of sand, these regions of sedimentary type formations are contacted, because increasing outer tube in
The external diameter in portion, therefore, on the one hand, outer tube middle part is corresponding to the contact area in the region to increase, and efficiency, the opposing party are freezed in raising
Face, space also increases in the corresponding pipe in outer tube middle part, therefore the up liquid that freezes, into behind the position, the residence time is relatively
It is long, it is also possible to strengthen freezing efficiency, finally formed water content region high and freeze sand.Meanwhile, by outer tube top, bottom
The heat-insulation layer at (i.e. the small position of outer tube external diameter) is few to loess formation, these water content of sedimentary type formations, region that is need not freezing is entered
Row low-temperature receiver completely cuts off, and to reduce low-temperature receiver loss, improves the effective rate of utilization of low-temperature receiver, is finally reached shortening ground freeze-off time, improves
Freeze the purpose of efficiency.
Preferably, the area of section S at the middle part of described outer tube1It is top or the area of section S of bottom of outer tube2's
1.5~3 times, the area of section of inner tube is S3.It is further preferred that S1=3S3, S2=2S3, ground can be frozen by this programme
The knot time foreshortens to 5~7 days.
Preferably, using polyurethane foam material or rock wool etc., the position to that need not freeze is carried out described heat-insulation layer
Insulation, reduces the loss of low-temperature receiver energy.
The runner that inner tube bottom connects with outer tube in the present invention can be obtained by the following two kinds of programs：
Scheme one：Through hole is provided with the tube wall of described inner tube, through hole is described runner.
Scheme two：The bottom of described inner tube is open, and it is highly higher than outer pipe bottom；The mouth of inner tube bottom-open is institute
The runner stated.
Preferably, it is described freeze liquid inlet, freeze liquid liquid return hole respectively by the import of pipeline and refrigerator, export
Connection, realizes freezing the cycle applications of liquid by refrigerator.
The present invention is had an advantageous effect in that compared with prior art：
Difference can be carried out by the present invention to underground ground to freeze, by increasing the external diameter in the middle part of outer tube, can increase
Outer tube middle part and layer of sand and part loess formation, the contact area in these high-moisture regions of sedimentary type formations closed on layer of sand,
Improve and freeze efficiency, while extending the residence time for freezing liquid in these regions, enhance freezing efficiency；The present invention is also led to
To cross the heat-insulation layer region that need not freeze small to water content carry out low-temperature receiver isolation, it is to avoid unnecessary cold source energy, makes low-temperature receiver
Effective rate of utilization be improved.
Brief description of the drawings
Fig. 1 is application structure schematic diagram of the invention.
In figure：1st, liquid inlet is freezed；2nd, inner tube；3rd, liquid liquid return hole is freezed；4th, outer tube；5th, heat-insulation layer；6th, loess formation；7、
Freeze sand；8th, layer of sand；9th, sedimentary type formations.
Specific embodiment
Embodiments of the invention are described further below in conjunction with the accompanying drawings：
As shown in figure 1, vertical shaft difference freezing plant of the present invention, including inner tube 2 and outer tube 4, outer tube 4 is enclosed within inner tube
Outside 2, increase the external diameter at the middle part of outer tube 4, make the middle part of outer tube 4 external diameter it is big to its upper and bottom external diameter, in outer tube 4
Top, the periphery at bottom (i.e. the small position of the external diameter of outer tube 4) are surrounded by heat-insulation layer 5, and the external diameter of heat-insulation layer 5 is (i.e. outer with the middle part of outer tube 4
The small position of the external diameter of pipe 4) external diameter it is identical；The top of inner tube 2 has freezes liquid inlet 1, and its bottom is open and height is higher than
The bottom of outer tube 4, so as to realize the connection with outer tube 4；The top of outer tube 4, bottom are closed, and its top has freezes liquid liquid return hole
3, the wall thickness of each several part of outer tube 4 (including the upper, middle and lower of outer tube 4, i.e. outer tube 4 are overall) is identical.In the present embodiment, outward
The area of section at the middle part of pipe 4 is S1, the top of outer tube 4 or the area of section of bottom are S2, the area of section of inner tube 2 is S3,
Wherein, S1=3S3, S2=2S3；Heat-insulation layer 5 uses polyurethane foam material；Freeze liquid inlet 1, freeze liquid liquid return hole 3 and distinguish
Be connected by the import of pipeline and refrigerator, outlet, the cycle applications of liquid are freezed by refrigerator realization.
At present, underground ground is generally made up of the layer of sand 8 of loess formation 6, middle part and the sedimentary type formations 9 of bottom on top, tool
, it is necessary to make the middle part of outer tube 4 and layer of sand 8 and yellow with the part that layer of sand 8 closes on when body applies the present invention in work shaft
The big region of soil layer 6, these water content of sedimentary type formations 9 is contacted, and by heat-insulation layer 5 that the top of outer tube 4, bottom is (i.e. outer
The small position of the external diameter of pipe 4), region that need not freeze few with loess formation 6, these water content of sedimentary type formations 9 separate.So,
On the one hand, low-temperature receiver isolation is carried out to the region that need not freeze, low-temperature receiver loss is reduced, is improved the effective rate of utilization of low-temperature receiver, the opposing party
Face, increases the contact area at the middle part of outer tube 4 and the big region of water content, and extends and up freeze liquid stopping into the region
The time is stayed, efficiency is freezed so as to improve, enhance freezing efficiency, can make water content region high that jelly was formed in 5~7 days
Knot sand 7, substantially reduces the freeze-off time of underground ground, it is ensured that project progress.
Claims (8)
1. a kind of vertical shaft difference freezing plant, including inner tube (2) and outer tube (4), outer tube (4) are enclosed within inner tube (2) outward, and its feature exists
In：The external diameter at the middle part of increase outer tube (4), make the middle part of outer tube (4) external diameter it is big to its upper and bottom external diameter, in outer tube
(4) top, the periphery of bottom are surrounded by heat-insulation layer (5), and the external diameter of heat-insulation layer (5) is identical with the external diameter in the middle part of outer tube (4)；
The top of inner tube (2) has freezes liquid inlet (1), has the runner connected with outer tube (4) in the bottom of inner tube (2)；
The top of outer tube (4), bottom are closed, and its top has freezes liquid liquid return hole (3).
2. vertical shaft difference freezing plant according to claim 1, it is characterised in that：The middle part of described outer tube (4) cut
Face area S1It is top or the area of section S of bottom of outer tube (4)21.5~3 times, the area of section of inner tube (2) is S3。
3. vertical shaft difference freezing plant according to claim 2, it is characterised in that：S1=3S3, S2=2S3。
4. vertical shaft difference freezing plant according to claim 1, it is characterised in that：Described heat-insulation layer (5) uses poly- ammonia
Ester foaming material.
5. vertical shaft difference freezing plant according to claim 1, it is characterised in that：Described heat-insulation layer (5) uses rock wool.
6. according to any described vertical shaft difference freezing plant of Claims 1 to 5, it is characterised in that：The pipe of described inner tube (2)
Through hole is provided with wall, through hole is described runner.
7. according to any described vertical shaft difference freezing plant of Claims 1 to 5, it is characterised in that：The bottom of described inner tube (2)
Portion is open, and it is highly higher than outer tube (4) bottom；The mouth of inner tube (2) bottom-open is described runner.
8. according to any described vertical shaft difference freezing plant of Claims 1 to 5, it is characterised in that：Described freezes liquid feed liquor
Mouthful (1), freeze liquid liquid return hole (3) respectively by the import of pipeline and refrigerator, export and be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710227035.2A CN106894819A (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710227035.2A CN106894819A (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106894819A true CN106894819A (en) | 2017-06-27 |
Family
ID=59196268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710227035.2A Withdrawn CN106894819A (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106894819A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130900A (en) * | 2017-12-26 | 2018-06-08 | 北京中煤矿山工程有限公司 | Form the vertical energy-saving frigo and method of annular frost wall |
| CN108361038A (en) * | 2018-04-17 | 2018-08-03 | 中国矿业大学(北京) | A kind of energy saving frigo of New Inclined |
| CN113586061A (en) * | 2021-09-03 | 2021-11-02 | 中交二公局东萌工程有限公司 | Anti-frost-heaving system of vertical shaft in cold region and construction method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627061Y (en) * | 2003-06-20 | 2004-07-21 | 中国矿业大学 | Liquid nitrogen partial freezing equipment |
| CN201077982Y (en) * | 2007-09-11 | 2008-06-25 | 兖矿新陆建设发展有限公司 | Partial freezing device |
| CN202881927U (en) * | 2012-11-02 | 2013-04-17 | 赵智慧 | Liquid nitrogen freezer for segmental freeze |
| CN103343531A (en) * | 2013-07-26 | 2013-10-09 | 刘波 | Freezing strengthening construction method for partial stratums difficult to freeze |
| CN203755294U (en) * | 2013-12-24 | 2014-08-06 | 中煤第五建设有限公司 | Energy-saving type freezing pipe used for underwater congelation |
| CN104453911A (en) * | 2014-12-02 | 2015-03-25 | 淮南矿业(集团)有限责任公司 | Freezer and vertical shaft freezing system |
| CN206681738U (en) * | 2017-04-07 | 2017-11-28 | 淄博王煤矿业有限公司 | Vertical shaft difference freezing plant |
-
2017
- 2017-04-07 CN CN201710227035.2A patent/CN106894819A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2627061Y (en) * | 2003-06-20 | 2004-07-21 | 中国矿业大学 | Liquid nitrogen partial freezing equipment |
| CN201077982Y (en) * | 2007-09-11 | 2008-06-25 | 兖矿新陆建设发展有限公司 | Partial freezing device |
| CN202881927U (en) * | 2012-11-02 | 2013-04-17 | 赵智慧 | Liquid nitrogen freezer for segmental freeze |
| CN103343531A (en) * | 2013-07-26 | 2013-10-09 | 刘波 | Freezing strengthening construction method for partial stratums difficult to freeze |
| CN203755294U (en) * | 2013-12-24 | 2014-08-06 | 中煤第五建设有限公司 | Energy-saving type freezing pipe used for underwater congelation |
| CN104453911A (en) * | 2014-12-02 | 2015-03-25 | 淮南矿业(集团)有限责任公司 | Freezer and vertical shaft freezing system |
| CN206681738U (en) * | 2017-04-07 | 2017-11-28 | 淄博王煤矿业有限公司 | Vertical shaft difference freezing plant |
Non-Patent Citations (1)
| Title |
|---|
| 刘波等: "冻结管差异温度强化冻结试验与数值分析", 《煤炭工程》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108130900A (en) * | 2017-12-26 | 2018-06-08 | 北京中煤矿山工程有限公司 | Form the vertical energy-saving frigo and method of annular frost wall |
| CN108361038A (en) * | 2018-04-17 | 2018-08-03 | 中国矿业大学(北京) | A kind of energy saving frigo of New Inclined |
| CN113586061A (en) * | 2021-09-03 | 2021-11-02 | 中交二公局东萌工程有限公司 | Anti-frost-heaving system of vertical shaft in cold region and construction method thereof |
| CN113586061B (en) * | 2021-09-03 | 2023-11-21 | 中交二公局东萌工程有限公司 | Anti-frost-heaving system of cold region vertical shaft and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170627 |