CN203096720U - Freezing pipe capable of exhausting - Google Patents
Freezing pipe capable of exhausting Download PDFInfo
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- CN203096720U CN203096720U CN 201320068724 CN201320068724U CN203096720U CN 203096720 U CN203096720 U CN 203096720U CN 201320068724 CN201320068724 CN 201320068724 CN 201320068724 U CN201320068724 U CN 201320068724U CN 203096720 U CN203096720 U CN 203096720U
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- valve
- exhaust
- freezing
- freezing pipe
- pipe
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Abstract
The utility model relates to a freezing pipe capable of exhausting. The freezing pipe capable of exhausting comprises a pipe body, a liquid feeding pipe, a locating ring, an exhausting pipe and a valve. The freezing pipe capable of exhausting is characterized by further comprising an automatic blow-off valve. The liquid feeding pipe and the exhausting pipe are arranged in the pipe body. The locating ring is fixed in the pipe body. The exhausting pipe penetrates through the locating ring. The exhausting pipe is connected with the valve. The automatic blow-off valve is arranged at the rear end of the valve and connected with the valve. The freezing pipe capable of exhausting has the advantages that gas gathered on the upper portion of the freezing pipe can be exhausted, the development of a freezing wall on the upper portion is guaranteed, engineering period is shortened, constructing safety and constructing quality are guaranteed, automatic exhausting is achieved, the gas can be exhausted in time, workload is reduced, constant attention of a worker is not needed, a structure is simple, installation is convenient and the freezing pipe capable of exhausting is widely suitable for freezing engineering of various kinds.
Description
Technical field
But the utility model relates to a kind of exhaust freezing pipe, is particularly useful for artificial stratum freezing engineering.
Background technology
Artificial stratum freezing process is to utilize the artificial cooling technology; the low temperature refrigerant is sent into the stratum; water in the stratum is freezed; natural ground is become frozen soil; increase its intensity and stability; with opposing ground press and isolated underground water with excavate getting in touch between the body so that under the protection of frost wall, carry out the excavation of tunnel, vertical shaft and underground construction and do a kind of special formation reinforcement means of permanent support.
Artificial stratum freezing technology originates from the weather freezing phenomenon.The Russian when Siberia digging gold mine, once utilized the natural cold-amount frozen ground to dig vertical at first.1862, the Britain engineer used artificial freezing technology strengthening stratum first.1880, Germany engineer Bo Cishu (P.H.Poetsch) raiser building site layer first freezes (Artificially ground freezing method) principle and patents, and successfully be applied to No. nine well sinking operations of dark 103 m in Alba Reed colliery in 1883, after this, freezing process is in Europe, U.S.A is widely used in mine, subway, in the engineerings such as tunnel: the long pedestrian tunnel construction project of Sweden 24m in 1886, France's plug was received-horse En Sheng river bed subway engineering in 1906, the adjustment of nineteen forty-two Brazil 26 floor mansion uneven subsidences, nineteen sixty-eight Britain's one upper hose canal engineering, U.S.'s lakebed water intaking vertical shaft installing engineerings in 1973 etc.After the nineties in 20th century, more extensive to the application of manually freezing in the world.In Spain's Valencia subway construction in 1991, freezing process is well received with its convenient, flexible, effective characteristics.Milwaukee city, the gloomy state of University of Wisconsin-Madison adopts freezing process supporting, sealing to control displacement well when building the thin dark tunnel of loud diameter The initial segment 50m deep shaft.Metro Tunnel improves frozen soil strength by increasing soil moisture in layer near the railway terminal, Germany Dusseldorf urban centre, makes construction freezing method succeed.When Japan Nagoya is built a underground water tunnel, need the vertical tunnel that connects two different-diameters, in the junction successful Application artificial freezing process, last 323 days.
In adopting the construction freezing method process of salt solution as refrigerant, brine circulation system does not seal fully, brine circulation system can constantly take a part of gas to freezing pipe via saline line when work and salt solution goes in the loop, thereby cause gas to go to gather in loop and the freezing pipe at salt solution, hindered the circulation of salt solution, this has just had a strong impact on the salt solution in the freezing pipe and the interchange of heat on stratum, and then influences freezing efficiency.Existing method for exhausting be join, the position of the peak of brine collecting ring places valve, by the manual gas of discharging in the saline line of valve.The shortcoming of this method be exactly can not be well with the elevation angle on the occasion of freezing pipe in gas eject, the elevation angle on the occasion of the highest point of freezing pipe often have gas to gather, do not reach good exhaust effect, influenced the development of top frost wall, cause serious potential safety hazard to engineering, simultaneously, valve needs manual operations, need have the staff to nurse constantly, comparatively inconvenience, also often cause exhaust untimely, and salt solution is discharged in exhaust often, has polluted the work-yard, if nurse is improper, then can cause salt solution to run off in a large number, light then cause the waste of salt solution, heavy then salt solution leaks in the soil body, causes soil body salt content to increase, can't freeze, cause the failure of potential safety hazard even engineering.
Summary of the invention
The purpose of this utility model be provide in order to solve existing issue a kind of can self-bleeding freezing pipe.
The utility model can self-bleeding freezing pipe, comprise body, feed pipe, locating ring, stack and valve, also comprise automatic exhaust-valve, be provided with feed pipe and stack in the body, locating ring is fixed in the body, and stack passes locating ring, and stack is connected with valve, automatically exhaust-valve is arranged at the valve rear end, is connected with valve.
The distance of described stack distance from bottom body bottom is 0.5 to 20 centimetre.
Described locating ring is preferably and is fixed on the feed pipe.
Described stack is connected by connector with valve.
Described valve is preferably ball valve.
Described valve is provided with peep hole, and peep hole is positioned at the valve outside, is transparent material, and can observe in the ball valve is gassy or liquid.
Described automatic exhaust-valve inside is provided with filter membrane, and the aperture of filter membrane can allow gas pass through, but can not pass through liquid.
The gas outlet of described automatic exhaust-valve is provided with pressure check valve, when pressure surpasses design load, opens exhaust automatically, and when pressure during less than predetermined value, pressure check valve is closed.
The utility model compared with prior art has following advantage: but the freezing pipe of this exhaust can be discharged the gas that freezing pipe top is gathered, guaranteed the development of top frost wall, shorten the duration of a project, guaranteed construction safety and construction quality, but automatic vent, exhaust is timely, reduce workload, do not needed the staff to nurse constantly, and simple in structure, easy for installation, be widely used in all kinds of freezing engineerings.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, body, 2, feed pipe, 3, locating ring, 4, stack, 5, connector, 6, valve, 7, exhaust-valve automatically, 8, peep hole, 9, filter membrane.
The specific embodiment
Embodiment in conjunction with the accompanying drawings is as follows: certain subway construction service channel construction freezing method building site, since the freezing pipe that top, frozen region is found in construction during first service channel especially the elevation angle on the occasion of the highest point of top freezing pipe often have gas to gather, seriously hindered the salt water circulation, the temperature detection data exception, top frost wall development is obviously slow partially, when serious, top part freezing pipe defrost, temperature is than middle and lower part freezing pipe Senior Two more than ten degree, joining, the valve of the peak setting of brine collecting ring needs manually-operated, and can only discharge and join, gas in the brine collecting ring, for the elevation angle on the occasion of the gas of top freezing pipe highest point do not have effect, after the exhaust, the monitoring temperature data of top frost wall are not obviously improved, and cause top frozen soil wall extremely thin weak and incured loss through delay the duration.In order to address this problem, when second service channel of construction, designed following freezing pipe: but a kind of exhaust freezing pipe, comprise body 1, feed pipe 2, locating ring 3, stack 4 and valve 6, also comprise automatic exhaust-valve 7, be provided with feed pipe 2 and stack 4 in the body 1, be fixed with locating ring 3 on the feed pipe 2, stack 4 passes locating ring 3, and the distance of stack 4 distance from bottom bodys 1 bottom is 0.5 to 20 centimetre, and stack 4 is connected by connector 5 with valve 6.Automatically exhaust-valve 7 is arranged at valve 6 rear ends, be connected with valve 6, automatically exhaust-valve 7 inside are provided with filter membrane 9, the aperture of filter membrane 9 can allow gas pass through, but can not pass through liquid, and the gas outlet of exhaust-valve 7 is provided with pressure check valve automatically, when pressure surpasses design load, automatically open exhaust, when pressure during less than predetermined value, pressure check valve is closed.Described valve 6 is a ball valve, and valve 6 is provided with peep hole 8, and peep hole 8 is positioned at valve 6 outsides, is transparent material, and can observe in the ball valve is gassy or liquid.
But the implementation method of this exhaust freezing pipe is: freezing pipe body 1 is drilled to be pierced in the rock-soil layer, installing and locating ring 3, feed pipe 2 is inserted in the body 1, again stack 4 is passed locating ring 3, making the distance of stack 4 distance from bottom bodys 1 bottom is 0.5 to 20 centimetre, the cover plate of welding freezing pipe body 1 end reaches back the liquid goat's horn, connects stack 4 and valve 6 by connector 5, connects automatic exhaust-valve 7 in valve 6 rear ends.
During use, judge at first whether freezing pipe top has gas to gather, can observe the peep hole 8 that is provided with on the valve 6, if in the peep hole 8 is gas, judge that then freezing pipe top has gas to gather, must carry out exhaust, though but since sometimes freezing pipe top gathered a certain amount of gas, but still have residual salt solution not discharge in the stack 4, be still liquid in the peep hole 8 on the valve 6, so when being liquid in the peep hole 8, can not judge directly that freezing pipe top does not have gas to gather, need go the monitoring result of loop temperature and thermometer hole temperature to make judgement in conjunction with the salt solution of every day, if go the monitoring result of loop temperature and thermometer hole temperature normal for liquid and the salt solution of every day in the peep hole 8, judge that then freezing pipe top does not have gas to gather, if in the peep hole 8 for liquid but the salt solution of every day goes the monitoring result of loop temperature and thermometer hole temperature to have unusually, then must unload automatic exhaust-valve 7, open valve 6, whether there is gas to discharge after observing a certain amount of salt solution of outflow, if have gas to discharge after flowing out a certain amount of salt solution, judge that then freezing pipe top has gas to gather, if do not have gas to discharge after flowing out a certain amount of salt solution, judge that then freezing pipe top does not have gas to gather, palpus maintenance or the temperature point that cloth salt solution goes on the loop and thermometer hole is interior again.
There is gas to gather if judge freezing pipe top, then carry out bleeding, load onto automatic exhaust-valve 7, open valve 6, owing in the brine loop certain pressure is arranged, the gas that freezing pipe top is gathered also has certain pressure, choose the pressure of driving valve of the locational pressure check valve in automatic exhaust-valve 7 gas outlets, the gas that freezing pipe top is gathered will pass through stack 4, valve 6 and automatic exhaust-valve 7, be discharged to the freezing pipe outside, because exhaust-valve 7 is provided with filter membrane 9 automatically, the aperture of filter membrane 9 can allow gas pass through, but can not pass through liquid, even the gas that freezing pipe top is gathered is discharged, what enter stack 4 is salt solution, and valve 6 is not closed yet, the salt solution that circulates in the freezing pipe can not discharged by automatic exhaust-valve 7 yet, if the pressure reduction deficiency then unloads automatic exhaust-valve 7 so that the gas that freezing pipe top is gathered is discharged, open valve 6, carry out artificial exhaust, can on the interface of valve 6, apply negative pressure in case of necessity with gas bleeding.
In second service channel construction,, can discharge the gas that gathers in the freezing pipe of top very easily owing to used freezing pipe as above, make that the frost wall development is comparatively even, shortened the duration of a project, and exhaust is timely, realize unmanned guard, alleviated staff's burden.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (8)
1. but exhaust freezing pipe, comprise body (1), feed pipe (2), locating ring (3), stack (4) and valve (6), it is characterized in that: also comprise automatic exhaust-valve (7), be provided with feed pipe (2) and stack (4) in the body (1), locating ring (3) is fixed in the body (1), and stack (4) passes locating ring (3), and stack (4) is connected with valve (6), automatically exhaust-valve (7) is arranged at valve (6) rear end, is connected with valve (6).
2. but exhaust freezing pipe according to claim 1 is characterized in that: the distance of described stack (4) distance from bottom body (1) bottom is 0.5 to 20 centimetre.
3. but exhaust freezing pipe according to claim 1 is characterized in that: described locating ring (3) is preferably and is fixed on the feed pipe (2).
4. but exhaust freezing pipe according to claim 1 is characterized in that: described stack (4) is connected by connector (5) with valve (6).
5. but exhaust freezing pipe according to claim 1 is characterized in that: described valve (6) is preferably ball valve.
6. but exhaust freezing pipe according to claim 1 is characterized in that: described valve (6) is provided with peep hole (8), and peep hole (8) is positioned at valve (6) outside, is transparent material.
7. but exhaust freezing pipe according to claim 1 is characterized in that: described automatic exhaust-valve (7) inside is provided with filter membrane (9), and the aperture of filter membrane (9) can allow gas pass through, but can not pass through liquid.
8. but exhaust freezing pipe according to claim 1 is characterized in that: the gas outlet of described automatic exhaust-valve (7) is provided with pressure check valve, when pressure surpasses design load, opens exhaust automatically, and when pressure during less than predetermined value, pressure check valve is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068724 CN203096720U (en) | 2013-02-06 | 2013-02-06 | Freezing pipe capable of exhausting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068724 CN203096720U (en) | 2013-02-06 | 2013-02-06 | Freezing pipe capable of exhausting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096720U true CN203096720U (en) | 2013-07-31 |
Family
ID=48848137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068724 Expired - Fee Related CN203096720U (en) | 2013-02-06 | 2013-02-06 | Freezing pipe capable of exhausting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096720U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109882187A (en) * | 2019-04-08 | 2019-06-14 | 中国矿业大学 | A kind of tunnel structure breakage freezing process method for repairing and constructing and dedicated elevation angle frigo |
-
2013
- 2013-02-06 CN CN 201320068724 patent/CN203096720U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103088810B (en) * | 2013-02-06 | 2015-04-01 | 徐州市城市轨道交通有限责任公司 | Freezing pipe capable of exhausting air |
| CN109882187A (en) * | 2019-04-08 | 2019-06-14 | 中国矿业大学 | A kind of tunnel structure breakage freezing process method for repairing and constructing and dedicated elevation angle frigo |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20150206 |
|
| EXPY | Termination of patent right or utility model |