CN206681738U - Vertical shaft difference freezing plant - Google Patents
Vertical shaft difference freezing plant Download PDFInfo
- Publication number
- CN206681738U CN206681738U CN201720362767.8U CN201720362767U CN206681738U CN 206681738 U CN206681738 U CN 206681738U CN 201720362767 U CN201720362767 U CN 201720362767U CN 206681738 U CN206681738 U CN 206681738U
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- China
- Prior art keywords
- outer tube
- external diameter
- vertical shaft
- inner tube
- freeze
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- 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.)
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- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model belongs to underground engineering construction servicing unit field, more particularly 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, heat-insulation layer is surrounded by 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, which has, freezes liquid inlet, has the runner connected with outer tube in the bottom of inner tube；Top, the bottom of outer tube are closed, and its top, which has, freezes liquid liquid return hole.Difference can be carried out by the utility model 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, increase outer tube contact area, extend and freeze the liquid residence time, it is final to shorten ground freeze-off time, improve and freeze efficiency, enhancing underground ground freezing efficiency.
Description
Technical field
A kind of vertical shaft difference freezing plant is the utility model is related to, belongs 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
Loosely the water in aqueous ground freezes for ice and cemented together with ground, becomes frozen soil, 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 freezing process is applied in work shaft
During knot, it usually needs 50~60 days, the duration of freezing of ground was very long, have impact on project progress to a certain extent.
Utility model content
The technical problems to be solved in the utility model is：Overcome deficiency of the prior art, there is provided one kind can improve cold
The effective rate of utilization in source, shorten ground freeze-off time, improve the vertical shaft difference freezing plant for freezing efficiency.
Vertical shaft difference freezing plant described in the utility model, including inner and outer tubes, for outer tube sleeve outside inner tube, increase is outer
The external diameter at the middle part of pipe, 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.
The small position of outer tube external diameter) periphery be surrounded by heat-insulation layer, external diameter and (i.e. the small position of outer tube external diameter) in the middle part of outer tube of heat-insulation layer
External diameter it is identical；The top of inner tube, which has, freezes liquid inlet, has the runner connected with outer tube in the bottom of inner tube；Outer tube
Top, bottom are closed, and its top, which has, freezes liquid liquid return hole.Wherein, the overall wall thickness of outer tube is identical.
The utility model is improved the outer tube structure in traditional freezing plant according to the composition of current underground ground,
Difference is carried out to underground ground to freeze, and generally speaking, is exactly in the big region of underground water content, is strengthened freezing efficiency, to aqueous
Small region is measured, carries out partial freezing, isolation low-temperature receiver in place's need not be freezed to residue, it is unnecessary so as to largely avoid
Low-temperature receiver energy loss, be improved the effective rate of utilization of low-temperature receiver, while shorten the freeze-off time of underground ground, improve
Freeze efficiency.Careful elaboration is carried out to the utility model 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, and work shaft will not be had an impact substantially, but the water content in layer of sand
Very high (loess formation and the water content of sedimentary type formations closed on layer of sand is also of a relatively high), this is to cause work shaft not construct
Most important reason.The utility model is directed to this case, and freezing plant China and foreign countries tubular construction is improved, and increases outer
External diameter in the middle part of pipe, outer tube is formed the structure that middle part external diameter is big, top and lower outer diameter are small, in specific application, make outer tube
The part loess formation that is closed on layer of sand and with layer of sand of middle part, these regions of sedimentary type formations contacted, because increasing outer tube
Middle part external diameter, therefore, on the one hand, it is corresponding to the contact area in the region in the middle part of outer tube to increase, improve and freeze efficiency, it is another
Aspect, space also increases in pipe corresponding in the middle part of outer tube, therefore the up liquid that freezes, into behind the position, the residence time is relatively
It is long, freezing efficiency can also be strengthened, finally formed the high region of water content and freeze sand.Meanwhile pass through outer tube top, bottom
The heat-insulation layer at (i.e. the small position of outer tube external diameter) is to loess formation, these water content of sedimentary type formations are few, the region that need not freeze 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 and shortens ground freeze-off time, improve
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, described heat-insulation layer is carried out using polyurethane foam material or rock wool etc. to the position that need not freeze
Insulation, reduce the loss of low-temperature receiver energy.
The runner that inner tube bottom connects with outer tube in the utility model can obtain 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 its height is higher than outer pipe bottom；The mouth of inner tube bottom-open is institute
The runner stated.
Preferably, it is described to freeze liquid inlet, freeze liquid liquid return hole respectively by the import of pipeline and refrigerator, outlet
Connection, the cycle applications for freezing liquid are realized by refrigerator.
Possessed beneficial effect is the utility model compared with prior art：
Difference can be carried out by the utility model to underground ground to freeze, can by increasing the external diameter in the middle part of outer tube
Increase outer tube middle part and layer of sand and the part loess formation, the contact surface in these high-moisture regions of sedimentary type formations that are closed on layer of sand
Product, improves and freezes efficiency, while extends the residence time for freezing liquid in these regions, enhances freezing efficiency；This practicality
It is new that low-temperature receiver isolation is also carried out by the heat-insulation layer region that need not freeze small to water content, avoid unnecessary low-temperature receiver damage
Lose, be improved the effective rate of utilization of low-temperature receiver.
Brief description of the drawings
Fig. 1 is application structure schematic diagram of the present utility model.
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.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings：
As shown in figure 1, vertical shaft difference freezing plant described in the utility model, including inner tube 2 and outer tube 4, outer tube 4 are enclosed on
Outside inner tube 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, outside
Top, the periphery at bottom (i.e. the small position of the external diameter of outer tube 4) of pipe 4 are surrounded by heat-insulation layer 5, external diameter and the middle part of outer tube 4 of heat-insulation layer 5
The external diameter at (i.e. the small position of the external diameter of outer tube 4) is identical；The top of inner tube 2, which has, freezes liquid inlet 1, its bottom opening and height
Higher than the bottom of outer tube 4, so as to realize the connection with outer tube 4；Top, the bottom of outer tube 4 are closed, and its top, which has, freezes liquid time
Liquid mouth 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 is overall) are identical.The present embodiment
In, the area of section at the middle part of outer tube 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
For S3, wherein, S1=3S3, S2=2S3；Heat-insulation layer 5 uses polyurethane foam material；Freeze liquid inlet 1, freeze liquid liquid return hole 3
Connected respectively by the import of pipeline and refrigerator, outlet, the cycle applications for freezing liquid are realized by refrigerator.
At present, underground ground is generally made up of the sedimentary type formations 9 of the loess formation 6 on top, the layer of sand 8 at middle part and bottom, tool
The utility model is applied to when in work shaft, it is necessary to make the middle part and layer of sand 8 and the portion closed on layer of sand 8 of outer tube 4 by body
The big region of point loess formation 6, these water content of sedimentary type formations 9 is contacted, and by heat-insulation layer 5 by the top of outer tube 4, bottom
(i.e. the small position of the external diameter of outer tube 4) and loess formation 6, these water content of sedimentary type formations 9 are few, the region that need not freeze separates.
Thus it is possible, on the one hand, carrying out low-temperature receiver isolation to the region that need not freeze, reduce low-temperature receiver loss, improve the effective rate of utilization of low-temperature receiver, separately
On the one hand, the contact area at the middle part of outer tube 4 and the big region of water content is increased, and extends the up liquid that freezes and enters the region
Residence time, freeze efficiency so as to improve, enhance freezing efficiency, the high region of water content shape in 5~7 days can be made
Into sand 7 is freezed, the freeze-off time of underground ground is substantially reduced, ensure 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 on inner tube (2) outside, its feature exists
In：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 of bottom is 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), which has, freezes liquid inlet (1), has the runner connected with outer tube (4) in the bottom of inner tube (2)；
Top, the bottom of outer tube (4) are closed, and its top, which 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) is 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 its height is 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
Mouth (1), freeze liquid liquid return hole (3) respectively by the import of pipeline and refrigerator, outlet connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362767.8U CN206681738U (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720362767.8U CN206681738U (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206681738U true CN206681738U (en) | 2017-11-28 |
Family
ID=60399341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720362767.8U Expired - Fee Related CN206681738U (en) | 2017-04-07 | 2017-04-07 | Vertical shaft difference freezing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206681738U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894819A (en) * | 2017-04-07 | 2017-06-27 | 淄博王煤矿业有限公司 | Vertical shaft difference freezing plant |
-
2017
- 2017-04-07 CN CN201720362767.8U patent/CN206681738U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894819A (en) * | 2017-04-07 | 2017-06-27 | 淄博王煤矿业有限公司 | Vertical shaft difference freezing plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20190407 |
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| CF01 | Termination of patent right due to non-payment of annual fee |