CN113217744B - Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve - Google Patents
Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve Download PDFInfo
- Publication number
- CN113217744B CN113217744B CN202110563742.5A CN202110563742A CN113217744B CN 113217744 B CN113217744 B CN 113217744B CN 202110563742 A CN202110563742 A CN 202110563742A CN 113217744 B CN113217744 B CN 113217744B
- Authority
- CN
- China
- Prior art keywords
- sleeve
- pipe
- freezing
- freezing pipe
- liquid
- 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.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/07—Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining
-
- 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
- E02D3/115—Improving or preserving soil or rock, e.g. preserving permafrost soil by thermal, electrical or electro-chemical means by freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/162—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe
- F16L55/165—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section
- F16L55/1657—Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe or flexible liner being inserted in the damaged section lengths of rigid pipe being inserted
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Structural Engineering (AREA)
- Soil Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an upward-tilting freezing pipe sleeve construction exhaust device and an upward-tilting freezing pipe sleeve construction exhaust method, wherein the exhaust device comprises a one-way valve, a sleeve, a ball valve, a liquid supply pipe and a liquid return pipe; the one-way valve is fixedly arranged at the first end of the sleeve; the first end of the sleeve extends into the freezing pipe, and the outer pipe wall of the second end of the sleeve is fixedly connected with the second end of the freezing pipe in a sealing way through a first annular plugging plate; the ball valve is fixedly arranged on the outer pipe wall of the second end of the freezing pipe; the first end of the liquid supply pipe extends into the sleeve, and the second end pipe orifice of the sleeve is fixedly connected with the outer pipe wall of the liquid supply pipe in a sealing mode through the second annular blocking plate. The exhaust method is a method for performing the exhaust of the freezing pipe by using the exhaust device. According to the invention, clear water or cement slurry is injected into the cavity between the sleeve and the freezing pipe through the ball valve, and gas in the freezing pipe can be discharged into the sleeve through the one-way valve under the extrusion of the clear water or the cement slurry, so that the problem of gas storage at the bottom of the upward-inclined freezing pipe is solved.
Description
Technical Field
The invention relates to the technical field of exhaust in freezing pipe sleeving construction. In particular to an upward-inclining freezing pipe sleeve construction exhaust device and an upward-inclining freezing pipe sleeve construction exhaust method.
Background
The stratum freezing technology is widely applied to construction engineering construction needing stratum reinforcement, and in recent years, the stratum freezing technology is expanded from coal mine shaft construction to the field of urban underground engineering construction. The application of the upward-inclined freezing pipe is more and more extensive according to different construction requirements. If the freezing pipes are long, a plurality of freezing pipes are usually connected in a welding mode, the brittleness of the freezing pipes is enhanced at low temperature, and the freezing pipes are interfered by barriers with uneven density in the stratum, so that the freezing pipes are stressed more complexly and are in the risk of weld cracking or even freezing pipe fracture, once the freezing pipes are cracked, saline water leaks into the stratum, the stratum is not frozen or frozen soil is thawed, and the like, and further the whole freezing wall can be failed. The repair method is generally to form a sleeve inside the original broken freezing pipe, and install a liquid supply pipe in the sleeve to form the brine circulation again. However, when the casing is lowered, the bottom of the freezing pipe is inclined upwards to store gas, and the heat exchange between the freezing pipe and the stratum is influenced by the existence of a large amount of gas, so that the heat transfer effect is influenced. Therefore, the gas storage at the bottom of the upward-inclined freezing pipe is a factor which influences the construction effect in the upward-inclined freezing construction engineering and is not negligible, and the problem of gas storage at the bottom when the upward-inclined freezing pipe is sleeved is solved.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide an exhaust device and an exhaust method for ascending freezing pipe sleeve construction when a freezing pipe breaks and a sleeve is lowered, so as to solve the problem of gas accumulation at the bottom of the ascending freezing pipe and avoid potential construction safety hazards caused by gas accumulation in the freezing pipe.
In order to solve the technical problems, the invention provides the following technical scheme:
the upward-tilting freezing pipe sleeve construction exhaust device comprises a one-way valve, a sleeve, a ball valve, a liquid supply pipe and a liquid return pipe;
the one-way valve is fixedly arranged at the first end of the sleeve;
the first end of the sleeve extends into the freezing pipe, and the outer pipe wall of the second end of the sleeve is fixedly connected with the second end of the freezing pipe in a sealing way through a first annular plugging plate;
the ball valve is fixedly arranged on the outer pipe wall of the second end of the freezing pipe;
the first end of the liquid supply pipe extends into the sleeve, and a pipe orifice at the second end of the sleeve is fixedly connected with the outer pipe wall of the liquid supply pipe in a sealing way through the second annular blocking plate;
the liquid return pipe is arranged on the outer pipe wall of the sleeve pipe between the first annular plugging plate and the second annular plugging plate; the liquid return pipe is in fluid communication with the sleeve;
and a cavity between the sleeve and the freezing pipe is in fluid communication with the sleeve through the one-way valve, and fluid passing through the one-way valve flows to the sleeve from the cavity. Liquid is injected into the cavity between the sleeve and the freezing pipe through the ball valve, and gas in the freezing pipe can be discharged into the sleeve through the one-way valve under the extrusion of the liquid, so that the problem that the bottom of the freezing pipe is inclined upwards to store gas when the sleeve is lowered is solved.
The freezing pipe sleeving construction exhaust device is inclined upwards, the ball valve is fixedly connected with the freezing pipe in a welding mode, and the ball valve is communicated with the inside of the freezing pipe.
And the liquid return pipe is fixedly connected with the sleeve in a welding mode.
The freezing pipe is sleeved with a pipe to construct an exhaust device in an upward-inclining mode, the ball valve is fixedly connected with the freezing pipe in a welding mode, and the ball valve is communicated with the inside of the freezing pipe; the liquid return pipe is fixedly connected with the sleeve in a welding mode.
The method for exhausting the construction of the upward-inclined freezing pipe sleeve by using the upward-inclined freezing pipe sleeve construction exhaust device comprises the following steps:
A. preparation of drainage aid: preparing auxiliary drainage liquid for freezing pipe exhaust according to construction requirements;
B. installation of the check valve: fixedly installing a one-way valve at the first end of the sleeve;
C. installing a sleeve: the method comprises the following steps that (1) sleeves are lowered into a freezing pipe in a pushing mode, and two adjacent sleeves are connected in a welding mode;
D. sealing treatment: fixing a first annular plugging plate between the sleeve and the freezing pipe, and sealing to form a first cavity;
E. installation of the ball valve: fixedly mounting a ball valve on the outer pipe wall of the second end of the freezing pipe to ensure that the ball valve is communicated with the interior of the freezing pipe;
F. filling of drainage-assisting liquid: injecting the prepared auxiliary drainage liquid into the first cavity through a ball valve by adopting an injection pump;
G. exhausting gas through a freezing pipe: filling drainage-aid liquid in the first cavity, namely, extruding gas in the freezing pipe into the cavity between the first end of the freezing pipe and the first end of the sleeve, wherein when the gas pressure in the cavity is increased along with the increase of the drainage-aid liquid, the gas pressure acts on a valve core of the one-way valve through a gas hole in the one-way valve to open the one-way valve, and the gas in the first cavity enters the sleeve through the one-way valve; when the first cavity is filled with the auxiliary discharge liquid and returns slurry into the sleeve, the freezing pipe finishes exhausting;
H. restart of freeze cycle: the first end of the liquid supply pipe extends into the sleeve, and a second end pipe orifice of the sleeve is fixedly connected with the outer pipe wall of the liquid supply pipe in a sealing way through a second annular blocking plate; a pipe hole is formed in the outer pipe wall of the sleeve between the first annular plugging plate and the second annular plugging plate, and a liquid return pipe is fixedly installed at the pipe hole formed in the sleeve, so that the liquid return pipe is communicated with the sleeve through the pipe hole; and liquid is supplied into the liquid supply pipe again, the one-way valve is automatically closed under the pressure of low-temperature saline water in the liquid supply pipe, and the sleeve pipe serves as a new freezing pipe to enable the freezing circulation system to work normally again.
In the above-mentioned construction and exhaust method for the upward-inclined freezing pipe casing, in the step A, the drainage-assisting liquid is clear water or cement slurry. The clean water and the cement slurry are filled into the first cavity, the clean water and the cement slurry can enter the stratum through the crack of the freezing pipe, the original freezing effect of the stratum cannot be influenced, and after the gas accumulated at the bottom of the upward-inclined freezing pipe is discharged, the clean water and the cement slurry can be used as a medium for heat exchange between brine and the stratum to continuously participate in freezing work, so that the freezing effect of freezing construction is ensured.
In the above-mentioned exhaust method for the construction of the upward-inclined freezing pipe sleeve, in the step B, the check valve is fixedly connected with the sleeve in a welding manner.
In the above-mentioned exhaust method for the construction of the tilt-up freezing pipe sleeve, in step D, the first annular blocking plate is connected with the freezing pipe in a sealing manner by welding; the second annular plugging plate is connected with the liquid supply pipe in a sealing mode in a welding mode.
In the above-mentioned exhaust method for the construction of the upward-inclined freezing pipe sleeve, in step E, the ball valve is fixedly connected with the freezing pipe in a welding manner, and the liquid return pipe is fixedly connected with the sleeve in a welding manner and is in fluid communication with the sleeve.
In the above-mentioned construction exhaust method for the upward-inclined freezing pipe casing, in the step A, the drainage-assisting liquid is clear water or cement slurry; in the step B, the one-way valve is fixedly connected with the sleeve in a welding manner; in step D, the first annular plugging plate is connected with the freezing pipe in a sealing mode in a welding mode; the second annular plugging plate is connected with the liquid supply pipe in a sealing mode in a welding mode; in step E, the ball valve is fixedly connected with the freezing pipe by welding, and the liquid return pipe is fixedly connected with the sleeve by welding and is in fluid communication with the sleeve.
The technical scheme of the invention achieves the following beneficial technical effects:
(1) the sleeve is arranged in the broken freezing pipe, clean water or cement slurry is injected into a cavity between the sleeve and the freezing pipe through the ball valve arranged on the freezing pipe, and gas in the freezing pipe can be discharged into the sleeve through the one-way valve under the extrusion of the clean water or the cement slurry, so that the problem of gas storage at the bottom of the upward-inclined freezing pipe is solved.
(2) In the selection of the drainage-assistant liquid, the drainage-assistant liquid is ensured not to damage the original frozen stratum and influence the later freezing construction after entering the stratum through the crack of the freezing pipe, but also ensured not to influence the heat exchange between the stratum and the salt water after being filled into the first cavity. The invention uses clean water or cement grout as drainage aid, after the gas accumulated at the bottom of the upward-inclined freezing pipe is replaced, the clean water and the cement grout can permeate into the stratum through the crack of the freezing pipe without causing adverse effect on freezing construction, and after the gas accumulated at the bottom of the upward-inclined freezing pipe is discharged, the clean water or the cement grout can be used as a medium for heat exchange between brine and the stratum to continuously participate in freezing work, thereby ensuring the freezing effect of freezing construction.
(3) According to the invention, through the arrangement of the one-way valve, under the action of the drainage-assisting liquid, air stored in the upward-inclined freezing pipe can be discharged into the casing pipe with the second end as the opening end, and meanwhile, the saline in the liquid supply pipe can not enter the first cavity after the freezing system is restarted, so that the saline is prevented from entering the stratum through the crack of the freezing pipe, and the freezing construction effect is prevented from being influenced. Through returning liquid pipe and sleeve pipe fixed connection and fluid switch-on, can form new salt solution freezing circulation system again, solved because of freezing the termination problem of pipe crack and leading to the salt solution circulation system.
Drawings
FIG. 1 is a schematic diagram of the exhaust device for the construction of an upward-inclined freezing pipe sleeve of the invention;
FIG. 2 is a schematic structural diagram of an exhaust device for pipe-in-pipe construction with upward-inclined freezing pipes.
The reference numbers in the figures denote: 1-freezing the tube; 2-a one-way valve; 3-sleeving a pipe; 4-a ball valve; 5-a liquid supply tube; 6-air holes; 7-a first annular closure plate; 8-a liquid return pipe; 9-second annular closure plate.
Detailed Description
Example 1
As shown in fig. 1 and 2, the gas exhausting device for pipe-in-pipe freezing construction comprises a one-way valve 2, a sleeve 3, a ball valve 4, a liquid supply pipe 5 and a liquid return pipe 8;
the one-way valve 2 is fixedly arranged at the first end of the sleeve 3;
the first end of the sleeve 3 extends into the freezing pipe 1, and the outer pipe wall of the second end of the sleeve 3 is fixedly connected with the second end of the freezing pipe 1 in a sealing way through a first annular plugging plate 7;
the ball valve 4 is fixedly arranged on the outer pipe wall of the second end of the freezing pipe 1; the ball valve 4 is fixedly connected with the freezing pipe 1 in a welding mode, and the ball valve 4 is communicated with the inside of the freezing pipe 1.
The first end of the liquid supply pipe 5 extends into the sleeve 3, and the second end pipe orifice of the sleeve 3 is fixedly connected with the outer pipe wall of the liquid supply pipe 5 in a sealing manner in a welding manner through a second annular blocking plate 9;
the liquid return pipe 8 is arranged on the outer pipe wall of the sleeve 3 between the first annular plugging plate 7 and the second annular plugging plate 9; the liquid return pipe 8 is communicated with the sleeve 3 in a fluid way; the liquid return pipe 8 is fixedly connected with the sleeve 3 in a welding mode;
the cavity between the sleeve 3 and the freezing pipe 1 is in fluid communication with the sleeve 3 through the one-way valve 2, and the fluid passing through the one-way valve 2 flows from the cavity to the sleeve 3.
Liquid is injected into the cavity between the sleeve and the freezing pipe through the ball valve, and gas in the freezing pipe can be discharged into the sleeve with the second end being the opening end through the one-way valve under the extrusion of the liquid, so that the problem of gas storage at the bottom of the upward-inclined freezing pipe is solved.
Example 2
The method for exhausting the construction of the upward-inclined freezing pipe sleeve by using the exhaust device for the construction of the upward-inclined freezing pipe sleeve in the embodiment 1 comprises the following steps:
A. preparation of drainage aid: preparing auxiliary drainage liquid for exhausting the freezing pipe 1 according to construction requirements;
B. installation of the check valve 2: fixedly mounting the one-way valve 2 at the first end of the sleeve 3;
C. installation of the sleeve 3: the sleeve pipes 3 are lowered into the freezing pipe 1 in a pushing mode, and two adjacent sleeve pipes 3 are connected in a welding mode;
D. sealing treatment: fixing a first annular plugging plate 7 between the sleeve 3 and the freezing pipe 1, and sealing to form a first cavity; the first cavity can be formed to seal the gas accumulated in the freezing pipe in the first cavity, and then the gas is discharged through the one-way valve by injecting the drainage-assistant liquid;
E. installation of the ball valve 4: fixedly mounting the ball valve 4 on the outer pipe wall of the second end of the freezing pipe 1 to ensure that the ball valve 4 is communicated with the interior of the freezing pipe 1;
F. filling of drainage-assisting liquid: injecting the prepared auxiliary drainage liquid into the first cavity through the ball valve 4 by adopting an injection pump;
G. exhausting gas from the freezing pipe 1: as shown in fig. 1, when the drainage-assisting liquid is filled in the first cavity, the gas in the freezing pipe 1 can be squeezed into the cavity between the first end of the freezing pipe 1 and the first end of the sleeve 3, when the gas pressure in the cavity increases with the increase of the drainage-assisting liquid, the gas pressure acts on the valve core of the check valve 2 through the gas hole 6 on the check valve 2, so that the check valve 2 is opened, and the gas in the first cavity enters the sleeve 3 with the second end being the open end through the check valve 2; when the first cavity is filled with the auxiliary discharge liquid and returns slurry into the casing, the freezing pipe 1 finishes exhausting;
H. restart of freeze cycle: as shown in fig. 2, a first end of the liquid supply tube 5 extends into the sleeve 3, and a second end orifice of the sleeve 3 is fixedly connected with an outer tube wall of the liquid supply tube 5 in a sealing manner through a second annular blocking plate 9; a pipe hole is formed in the outer pipe wall of the sleeve 3 between the first annular plugging plate 7 and the second annular plugging plate 9, and the liquid return pipe 8 is fixedly arranged at the pipe hole formed in the sleeve 3, so that the liquid return pipe 8 is communicated with the sleeve 3 through the pipe hole; the liquid is supplied to the liquid supply pipe 5 again, the one-way valve 2 is automatically closed under the pressure of the low-temperature saline in the liquid supply pipe 5, and the sleeve 3 serves as a new freezing pipe to enable the freezing circulation system to work normally again.
In step A, the drainage-aid fluid is cement slurry. In step D, the first annular plugging plate 7 is connected with the freezing pipe 1 in a sealing mode in a welding mode; the second annular closure plate 9 is sealingly connected to the supply tube 5 by welding. In step E, the ball valve 4 is fixedly connected with the freezing pipe 1 by welding, and the liquid return pipe 8 is fixedly connected with the sleeve 3 by welding and is in fluid communication with the sleeve.
In the embodiment, after the cement slurry is injected into the first cavity as the drainage-assisting liquid, the cement slurry enters the stratum through the cracks of the freezing pipe to block the cracks, the original freezing effect and later freezing construction of the stratum cannot be influenced, and after the gas accumulated at the bottom of the upward-inclined freezing pipe is discharged, clear water can be used as a medium for heat exchange between brine and the stratum to continue to participate in freezing work, so that the freezing effect of the freezing construction is ensured.
In other embodiments, in step a, clear water can also be selected as drainage aid, which can also solve the problem of air accumulation in the bottom of the upward-inclined freezing pipe without affecting the freezing construction and the freezing effect.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications are possible which remain within the scope of the appended claims.
Claims (6)
1. The construction exhaust method of the upward-inclined freezing pipe sleeve is characterized in that an upward-inclined freezing pipe sleeve construction exhaust device is used for exhausting a freezing pipe;
the upward-tilting freezing pipe sleeve construction exhaust device comprises a one-way valve (2), a sleeve (3), a ball valve (4), a liquid supply pipe (5) and a liquid return pipe (8);
the one-way valve (2) is fixedly arranged at the first end of the sleeve (3);
the first end of the sleeve (3) extends into the freezing pipe (1), and the outer pipe wall of the second end of the sleeve (3) is fixedly connected with the second end of the freezing pipe (1) in a sealing manner through a first annular plugging plate (7);
the ball valve (4) is fixedly arranged on the outer pipe wall of the second end of the freezing pipe (1);
the ball valve (4) is fixedly connected with the freezing pipe (1) in a welding mode, and the ball valve (4) is communicated with the interior of the freezing pipe (1);
the first end of the liquid supply pipe (5) extends into the sleeve (3), and the second end pipe orifice of the sleeve (3) is fixedly connected with the outer pipe wall of the liquid supply pipe (5) in a sealing way through a second annular plugging plate (9);
the liquid return pipe (8) is arranged on the outer pipe wall of the sleeve (3) between the first annular plugging plate (7) and the second annular plugging plate (9); the liquid return pipe (8) is in fluid communication with the sleeve (3);
a cavity between the sleeve (3) and the freezing pipe (1) is in fluid communication with the sleeve (3) through the one-way valve (2), and fluid passing through the one-way valve (2) flows from the cavity to the sleeve (3);
the construction exhaust method of the upward-inclined freezing pipe sleeve specifically comprises the following steps:
A. preparation of drainage aid: preparing drainage-assisting liquid for exhausting of the freezing pipe (1) according to construction requirements;
B. installation of the check valve (2): fixedly mounting the one-way valve (2) at the first end of the sleeve (3);
C. installation of the sleeve (3): the sleeves (3) are lowered into the freezing pipe (1) in a pushing mode, and two adjacent sleeves (3) are connected in a welding mode;
D. sealing treatment: fixing the first annular plugging plate (7) between the sleeve (3) and the freezing pipe (1) to form a first cavity in a sealing manner;
E. installation of the ball valve (4): fixedly mounting the ball valve (4) on the outer pipe wall of the second end of the freezing pipe (1) to ensure that the ball valve (4) is communicated with the interior of the freezing pipe (1);
F. filling of drainage-assisting liquid: injecting the prepared drainage-assisting liquid into the first cavity through the ball valve (4) by adopting an injection pump;
G. the freezing pipe (1) exhausts: filling drainage-aid liquid in a first cavity, wherein gas in the freezing pipe (1) is squeezed into the cavity between the first end of the freezing pipe (1) and the first end of the sleeve (3), when the gas pressure in the cavity is increased along with the increase of the drainage-aid liquid, the gas pressure acts on a valve core of the one-way valve (2) through a gas hole (6) in the one-way valve (2) to open the one-way valve (2), and the gas in the first cavity enters the sleeve (3) through the one-way valve (2); when the auxiliary liquid is filled in the first cavity and returns slurry from the casing, the freezing pipe (1) finishes exhausting;
H. restart of freeze cycle: a first end of the liquid supply pipe (5) extends into the sleeve (3), and a second end pipe orifice of the sleeve (3) is fixedly connected with the outer pipe wall of the liquid supply pipe (5) in a sealing way through a second annular plugging plate (9); a pipe hole is formed in the outer pipe wall of the sleeve (3) between the first annular plugging plate (7) and the second annular plugging plate (9), and a liquid return pipe (8) is fixedly arranged at the pipe hole formed in the sleeve (3), so that the liquid return pipe (8) is communicated with the sleeve (3) through the pipe hole; the liquid is supplied into the liquid supply pipe (5) again, the one-way valve (2) is automatically closed under the pressure of the low-temperature saline water in the liquid supply pipe (5), and the sleeve (3) serves as a new freezing pipe to enable the freezing circulation system to work normally again.
2. The tilt-up freezing pipe casing construction exhausting method according to claim 1, wherein in step a, the drainage-aid liquid is clear water or cement slurry.
3. The upward-inclined freezing pipe sleeve construction exhaust method as claimed in claim 1, wherein in step B, the one-way valve (2) and the sleeve (3) are fixedly connected in a welding manner.
4. The tilt-up freezing pipe bushing construction venting method according to claim 1, wherein in step D, the first annular blanking plate (7) is sealingly connected with the freezing pipe (1) by welding; the second annular sealing plate (9) is connected with the liquid supply pipe (5) in a sealing mode in a welding mode.
5. The upward-inclined freezing pipe sleeve construction exhausting method as claimed in claim 1, wherein in step E, the liquid return pipe (8) is fixedly connected with the sleeve (3) in a welding manner and is in fluid communication with the sleeve.
6. The tilt-up freezing pipe casing construction exhaust method according to claim 1, wherein in step a, the drainage-aid liquid is clear water or cement slurry; in the step B, the one-way valve (2) is fixedly connected with the sleeve (3) in a welding manner; in step D, the first annular plugging plate (7) is connected with the freezing pipe (1) in a sealing mode in a welding mode; the second annular plugging plate (9) is connected with the liquid supply pipe (5) in a sealing manner in a welding manner; in the step E, the ball valve (4) is fixedly connected with the freezing pipe (1) in a welding mode, and the liquid return pipe (8) is fixedly connected with the sleeve (3) in a welding mode and is in fluid communication with the sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563742.5A CN113217744B (en) | 2021-05-24 | 2021-05-24 | Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110563742.5A CN113217744B (en) | 2021-05-24 | 2021-05-24 | Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113217744A CN113217744A (en) | 2021-08-06 |
| CN113217744B true CN113217744B (en) | 2022-08-02 |
Family
ID=77099298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110563742.5A Active CN113217744B (en) | 2021-05-24 | 2021-05-24 | Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113217744B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995695A (en) * | 1975-08-25 | 1976-12-07 | Atlantic Richfield Company | Method for completing a well in a permafrost zone |
| JPS59400A (en) * | 1982-06-25 | 1984-01-05 | Mitsubishi Electric Corp | Apparatus for freeze-thawing of sludge |
| CN101696572A (en) * | 2009-09-27 | 2010-04-21 | 北京中煤矿山工程有限公司 | Freezer with gas guide structure |
| CN103088810A (en) * | 2013-02-06 | 2013-05-08 | 徐州市城市轨道交通有限责任公司 | Freezing pipe capable of exhausting air |
| CN206128047U (en) * | 2016-08-30 | 2017-04-26 | 中煤特殊凿井有限责任公司 | Freeze to face upward hole exhaust apparatus |
| CN112127895A (en) * | 2020-09-23 | 2020-12-25 | 北京中煤矿山工程有限公司 | Horizontal freezing hole broken pipe rapid processing device and construction method |
-
2021
- 2021-05-24 CN CN202110563742.5A patent/CN113217744B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3995695A (en) * | 1975-08-25 | 1976-12-07 | Atlantic Richfield Company | Method for completing a well in a permafrost zone |
| JPS59400A (en) * | 1982-06-25 | 1984-01-05 | Mitsubishi Electric Corp | Apparatus for freeze-thawing of sludge |
| CN101696572A (en) * | 2009-09-27 | 2010-04-21 | 北京中煤矿山工程有限公司 | Freezer with gas guide structure |
| CN103088810A (en) * | 2013-02-06 | 2013-05-08 | 徐州市城市轨道交通有限责任公司 | Freezing pipe capable of exhausting air |
| CN206128047U (en) * | 2016-08-30 | 2017-04-26 | 中煤特殊凿井有限责任公司 | Freeze to face upward hole exhaust apparatus |
| CN112127895A (en) * | 2020-09-23 | 2020-12-25 | 北京中煤矿山工程有限公司 | Horizontal freezing hole broken pipe rapid processing device and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113217744A (en) | 2021-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106988719B (en) | Anti-reflection system and anti-reflection method for circularly injecting hot water and liquid nitrogen into coal seam | |
| CN104213932B (en) | A kind of projecting coal bed waterpower phase transformation fracturing coal uncovering method | |
| CN104863605B (en) | The constructing device and method of a kind of tunnel connection channel open-work | |
| CN101457654B (en) | Telescopic type pulling hole packer | |
| CN102305055B (en) | Air foam flooding well bottom foaming process pipe column | |
| CN113217744B (en) | Exhaust device for construction of upward-inclined freezing pipe sleeve and exhaust method for construction of upward-inclined freezing pipe sleeve | |
| CN109339804B (en) | Device and method for cleaning shield tail seal bin of shield machine | |
| CN117449788A (en) | Method for replacing wellhead and wellhead fittings under pressure | |
| CN206608137U (en) | A kind of sieve tube completion horizontal well thermal production chemical packer | |
| CN102691492A (en) | System and process of screen pipe completion and cross oil layer cementing for steam injection heavy oil well | |
| CN215672138U (en) | Coal seam multistage acid injection gas extraction integrated device | |
| CN107218010B (en) | Water plugging bridge plug for damaged drilling sleeve and double-bridge plug type water plugging method | |
| CN213836620U (en) | Annular grouting freezing pipe | |
| CN108301814A (en) | Set breaks well card and seals seperated layer water injection equipment and technology | |
| CN114645691A (en) | Ground straight-through type through-lane drilling and well cementation downhole device and well cementation construction method | |
| CN204574613U (en) | Water-source heat-pump central air conditioner water supply well inside and outside integrative welded type is with well backflow device | |
| CN204404606U (en) | Water-source heat-pump central air conditioner water supply well inside and outside integrative dock is with well backflow device | |
| CN107461185A (en) | A kind of new fracturing drainage from coal seam coal seam device of air | |
| CN112281808A (en) | Annular grouting freezing pipe | |
| CN112412419A (en) | Method for increasing permeability and promoting pumping of frozen fractured coal | |
| CN114718517B (en) | Method for recycling butterfly valve on gas extraction pipe in coal mining operation | |
| CN118564202B (en) | Method for realizing wellhead replacement based on freezing pressure control mode | |
| RU2423579C1 (en) | Method to create watertight coupling of pipeline with barrier concrete or reinforced concrete wall | |
| CN111980651B (en) | Horizontal well low-temperature fluid graded fracturing method | |
| CN113586011A (en) | Coal seam multi-section acid injection gas extraction integrated device and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |