CN109751052B - Brine circulation pressure reducing device with large height difference for inclined shaft freezing - Google Patents
Brine circulation pressure reducing device with large height difference for inclined shaft freezing Download PDFInfo
- Publication number
- CN109751052B CN109751052B CN201811455196.8A CN201811455196A CN109751052B CN 109751052 B CN109751052 B CN 109751052B CN 201811455196 A CN201811455196 A CN 201811455196A CN 109751052 B CN109751052 B CN 109751052B
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- freezing
- inclined shaft
- brine
- construction
- water tank
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Links
- 230000008014 freezing Effects 0.000 title claims abstract description 53
- 238000007710 freezing Methods 0.000 title claims abstract description 53
- 239000012267 brine Substances 0.000 title claims abstract description 44
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 29
- 230000006837 decompression Effects 0.000 claims abstract description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 10
- 239000002689 soil Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a brine circulation decompression device with a large height difference for inclined shaft freezing, which comprises a refrigerator, wherein the refrigerator is arranged on the ground, an inclined shaft is arranged at the lower side of the ground, the left side of the bottom of the inclined shaft is a construction part, a lower freezing pipe is arranged at the upper side of the construction part, the upper end of the lower freezing pipe is connected with a water tank, the upper end of the water tank is connected with an upper freezing pipe, and the end part of the upper freezing pipe is communicated with the refrigerator. According to the inclined shaft freezing large-height difference brine circulation pressure reducing device, the water tank is arranged in the middle of the low-temperature brine circulation system through a two-time heat exchange method, so that the low-temperature brine pressure of a construction freezing part can be reduced, and the engineering safety problem brought by a high-pressure water band after a freezing pipe of the construction freezing part is broken can be effectively solved.
Description
Technical Field
The invention belongs to the technical field of geological engineering, and particularly relates to a brine circulation pressure reducing device with large frozen height difference for an inclined shaft.
Background
The artificial freezing method is a method for constructing temporary freezing walls around the underground engineering to ensure the stability of an unstable saturated soil body in tunneling construction when tunneling various underground engineering under complex hydrogeological conditions. In the construction process of underground engineering, the principle of stratum reinforcement is that water in the stratum is frozen to form frozen soil through artificial refrigeration of low-temperature brine, the connection between underground water and the underground engineering is isolated, the strength of soil body is greatly improved, and therefore the construction of the underground engineering can be carried out under the protection of freezing walls. For example, in the construction process of a frozen inclined shaft, a freezing station is firstly established on the ground surface, a refrigerating unit on the ground surface is responsible for refrigerating work of circulating brine, low-temperature brine is used as a main freezing cold source, the low-temperature brine (refrigerant agent) generally adopts calcium chloride water solution, the calcium chloride water solution is filled in all containers and pipelines in the circulating system, the temperature of the low-temperature brine is generally about minus 30 ℃, freezing holes are uniformly arranged between the bottom of a shaft and the ground surface, the freezing pipes are placed into the freezing holes for working, the low-temperature brine flows from the ground surface to a construction position at the bottom of the inclined shaft through the freezing pipes, and the low-temperature brine is successfully frozen to soil by heat exchange to play a role of temporary reinforcement.
In the freezing construction process of the inclined shaft with large height difference, because the low-temperature brine flows from the ground surface with large height difference to the construction position, larger water pressure can be formed, other constructions can be carried out at the frozen position in the freezing process of the low-temperature brine, when personnel perform construction, damage can be caused to the freezing pipe, the freezing pipe can be broken, and the larger water pressure has danger. Accordingly, a person skilled in the art provides a brine circulation pressure reducing device with a large frozen height difference for an inclined shaft, so as to solve the problems in the prior art.
Disclosure of Invention
The invention aims to provide a solution method capable of effectively solving the problem of high water pressure damage generated in the circulation process of low-temperature brine in a large-height-difference inclined well.
The technical scheme adopted by the invention is as follows:
The utility model provides a big difference in height brine circulation pressure relief device is frozen to inclined shaft, includes the refrigerator, the refrigerator is installed subaerial, there is the inclined shaft ground downside, inclined shaft bottom left side is construction position, the freezing pipe down is installed to construction position upside, the freezing pipe upper end is connected with the water tank down, the water tank upper end is connected with the freezing pipe, the tip and the refrigerator intercommunication of freezing the pipe.
The present invention is also characterized in that,
The water tank is a closed device, and is placed at a safe position where construction is not performed.
The water tank comprises an outer tank body and an inner tank body, an outer cavity is formed between the outer tank body and the inner tank body, and the outer cavity is communicated with the refrigerator through an upper freezing pipe.
The external cavity is filled with external frozen brine.
The middle part of the upper end of the outer box body is provided with an upper joint which is connected with an upper freezing pipe.
An inner cavity is arranged in the inner box body, and the inner cavity is filled with inner saline.
The middle part of the lower end of the inner box body is provided with a lower joint which is connected with a lower freezing pipe.
The temperature of the frozen brine outside the outer cavity is lower than that of the inner brine inside the inner cavity.
The beneficial effects of the invention are as follows:
According to the inclined shaft freezing large-height difference brine circulation pressure reducing device, the water tank is arranged in the middle of the low-temperature brine circulation system through a two-time heat exchange method, so that the low-temperature brine pressure of a construction freezing part can be reduced, and the engineering safety problem brought by a high-pressure water band after a freezing pipe of the construction freezing part is broken can be effectively solved.
Drawings
FIG. 1 is a schematic diagram of the operation of the present invention;
fig. 2 is a schematic view of the structure of the water tank in the present invention.
In the figure: 1-ground, 2-refrigerator, 3-inclined shaft, 4-upper freezing pipe, 5-water tank, 51-outer box, 52-external frozen brine, 53-upper joint, 54-inner box, 55-internal brine, 56-lower joint, 6-lower freezing pipe and 7-construction site.
Detailed Description
The invention will be described in detail with reference to the accompanying drawings and detailed description.
The invention provides a brine circulation decompression device with large height difference for inclined shaft freezing, which is shown in fig. 1-2, and comprises a freezer 2, wherein the freezer 2 is arranged on the ground 1, an inclined shaft 3 is arranged on the lower side of the ground 1, the left side of the bottom of the inclined shaft 3 is a construction part 7, a lower freezing pipe 6 is arranged on the upper side of the construction part 7, the upper end of the lower freezing pipe 6 is connected with a water tank 5, the upper end of the water tank 5 is connected with an upper freezing pipe 4, and the end part of the upper freezing pipe 4 is communicated with the freezer 2.
The water tank 5 is a closed device, and the water tank 5 is placed at a safe place where no construction is performed.
The water tank 5 is composed of an outer tank body 51 and an inner tank body 54, an outer cavity is formed between the outer tank body 51 and the inner tank body 54, and the outer cavity is communicated with the refrigerator 3 through the upper freezing pipe 4.
The outer lumen is filled with external frozen brine 52.
An upper joint 53 is arranged in the middle of the upper end of the outer box body 51, and the upper joint 53 is connected with the upper freezing pipe 4.
An inner chamber is provided in the inner case 54, and the inner chamber is filled with an inner brine 55.
The middle part of the lower end of the inner box body 54 is provided with a lower joint 56, and the lower joint 56 is connected with the lower freezing pipe 6.
The outer intra-lumen outer frozen brine 52 is at a lower temperature than the inner brine 55 inside the inner lumen.
Working principle:
the water tank 5 is a closed device and is placed at a safe position where construction is not performed, the water tank 5 is actually a heat exchange device, the brine passing through the refrigerator 2 is low-temperature and flows into the water tank 5 through the upper freezing 4 pipe, the external freezing brine 52 and the internal brine 55 are subjected to heat exchange, the internal brine 55 is low-temperature and flows into a site freezing position where construction is performed, a new low-temperature brine circulation system is formed after circulation, and if leakage occurs at the freezing position of the construction site, the brine can be in a low-pressure brine leakage state, so that the safety is ensured. Moreover, since the water tank 5 is placed in advance in a safe place without construction, the water tank 5 is hardly damaged due to construction although the water pressure flowing through the water tank 5 during the brine circulation is high.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (1)
1. The brine circulation decompression device with the large height difference for the inclined shaft freezing comprises a refrigerator, wherein the refrigerator is installed on the ground, the inclined shaft is arranged on the lower side of the ground, and the left side of the bottom of the inclined shaft is a construction part;
The water tank is a closed device and is placed at a safe part where construction is not performed;
the water tank consists of an outer tank body and an inner tank body, an outer cavity is formed between the outer tank body and the inner tank body, and the outer cavity is communicated with the refrigerator through an upper freezing pipe;
an upper joint is arranged in the middle of the upper end of the outer box body and is connected with an upper freezing pipe;
a lower joint is arranged in the middle of the lower end of the inner box body, and the lower joint is connected with a lower freezing pipe;
The external cavity is internally filled with external frozen brine;
An inner cavity is arranged in the inner box body, and the inner cavity is filled with inner saline water;
the temperature of the frozen brine outside the outer cavity is lower than that of the inner brine inside the inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455196.8A CN109751052B (en) | 2018-11-30 | 2018-11-30 | Brine circulation pressure reducing device with large height difference for inclined shaft freezing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455196.8A CN109751052B (en) | 2018-11-30 | 2018-11-30 | Brine circulation pressure reducing device with large height difference for inclined shaft freezing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109751052A CN109751052A (en) | 2019-05-14 |
| CN109751052B true CN109751052B (en) | 2024-05-24 |
Family
ID=66403460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811455196.8A Active CN109751052B (en) | 2018-11-30 | 2018-11-30 | Brine circulation pressure reducing device with large height difference for inclined shaft freezing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109751052B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182463A (en) * | 2011-04-12 | 2011-09-14 | 中煤邯郸特殊凿井有限公司 | Inclined shaft freezing heat insulation method |
| CN102777185A (en) * | 2012-05-15 | 2012-11-14 | 张晓岩 | Inclined well shaft construction technology |
| CN202869093U (en) * | 2012-09-25 | 2013-04-10 | 理士电池私人有限公司 | Refrigerating circulating device and heat exchange water tank used by the same |
| CN203310131U (en) * | 2013-06-24 | 2013-11-27 | 黄石东贝机电集团太阳能有限公司 | Natural circulating pressure-bearing water tank of spiral coil heat exchanger |
| KR20140080852A (en) * | 2012-12-20 | 2014-07-01 | 두산건설 주식회사 | Freezimg pipe and ground freezing method using freezimg pipe |
| CN208091033U (en) * | 2018-01-12 | 2018-11-13 | 中昊晨光化工研究院有限公司 | A kind of glacial epoch refrigerant substitutes the circulatory system of salt-ice refrigeration |
| CN209652908U (en) * | 2018-11-30 | 2019-11-19 | 陕西中能煤田有限公司 | A kind of circulation pressure reducer |
-
2018
- 2018-11-30 CN CN201811455196.8A patent/CN109751052B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182463A (en) * | 2011-04-12 | 2011-09-14 | 中煤邯郸特殊凿井有限公司 | Inclined shaft freezing heat insulation method |
| CN102777185A (en) * | 2012-05-15 | 2012-11-14 | 张晓岩 | Inclined well shaft construction technology |
| CN202869093U (en) * | 2012-09-25 | 2013-04-10 | 理士电池私人有限公司 | Refrigerating circulating device and heat exchange water tank used by the same |
| KR20140080852A (en) * | 2012-12-20 | 2014-07-01 | 두산건설 주식회사 | Freezimg pipe and ground freezing method using freezimg pipe |
| CN203310131U (en) * | 2013-06-24 | 2013-11-27 | 黄石东贝机电集团太阳能有限公司 | Natural circulating pressure-bearing water tank of spiral coil heat exchanger |
| CN208091033U (en) * | 2018-01-12 | 2018-11-13 | 中昊晨光化工研究院有限公司 | A kind of glacial epoch refrigerant substitutes the circulatory system of salt-ice refrigeration |
| CN209652908U (en) * | 2018-11-30 | 2019-11-19 | 陕西中能煤田有限公司 | A kind of circulation pressure reducer |
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| Publication number | Publication date |
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| CN109751052A (en) | 2019-05-14 |
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Inventor after: Wu Qunying Inventor after: Su Wei Inventor after: Guo Guangqiao Inventor after: Zhao Lixin Inventor after: Hua Zhaowen Inventor after: Liu Qingbao Inventor after: Zheng Tianbin Inventor after: Liu Chengyong Inventor after: Ma Peng Inventor after: Fan Weiye Inventor after: Zhang Yong Inventor after: Lv Wenhong Inventor after: Chi Bao lock Inventor after: Liu Wei Inventor after: Song Wei Inventor after: Guo Yongfu Inventor after: Lu Lu Inventor after: Gong Shoucai Inventor after: Li Ruizhi Inventor before: Lv Wenhong Inventor before: Guo Guangqiao Inventor before: Zhao Lixin Inventor before: Hua Zhaowen Inventor before: Liu Qingbao Inventor before: Zheng Tianbin Inventor before: Liu Chengyong Inventor before: Ma Peng Inventor before: Fan Weiye Inventor before: Zhang Yong Inventor before: Gong Shoucai Inventor before: Guo Yongfu Inventor before: Liu Wei Inventor before: Lu Lu Inventor before: Song Wei Inventor before: Li Ruizhi Inventor before: Su Wei |
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