CN102926763A - Air cushion type slurry shield gas pressure adjusting system - Google Patents
Air cushion type slurry shield gas pressure adjusting system Download PDFInfo
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- CN102926763A CN102926763A CN2012103537777A CN201210353777A CN102926763A CN 102926763 A CN102926763 A CN 102926763A CN 2012103537777 A CN2012103537777 A CN 2012103537777A CN 201210353777 A CN201210353777 A CN 201210353777A CN 102926763 A CN102926763 A CN 102926763A
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Abstract
The invention discloses an air cushion type slurry shield gas pressure adjusting system. A slurry chamber is communicated with the bottom part of an air cushion chamber, the top part of the air cushion chamber is provided with a liquid level sensor which is connected with the input end of an external intelligent controller, and the output end of the intelligent controller is connected with the input end of a gas-electric pressure adjustor; and the output end of the gas-electric pressure adjustor is connected with an air inlet valve and an air outlet valve respectively, which are arranged on the air cushion chamber. The system can judge the pressure of the gas in the air cushion chamber according to the height of the liquid level; when the liquid level changes, the liquid level sensor feeds the liquid level information back to the controller, the controller sends the corresponding electric signals to an electric-gas double-control pressure transmitter, the electric-gas double-control pressure transmitter adjusts the pressure in the air cushion chamber according to a corresponding relation, and when the pressure at the bottom basically remains unchanged, the stabilization of the excavation face is achieved.
Description
Technical field
The invention belongs to the slurry shield construction equipment, relate in particular to a kind of gas cushion type mud water shield structure gas voltage-regulating system.
Background technology
Slurry shield machine is under water during constructing tunnel, by in the muddy water cabin, forming the muddy water loop of specified pressure, concentration, form the mud film at the cutterhead Excavation, and pressure differential remains in the scope of setting before and after making Excavation, shield machine can be tunneled smoothly at the underwater environment of high hydraulic pressure, and the balance mechanism of cutterhead Excavation cutting mud film has important impact to the stable and dynamic tunneling process of Excavation.Slurry shield is divided into Japanese model and European pattern at present, and the characteristics of Japanese slurry shield do not have the air cushion storehouse, and the control of Excavation pressure is relatively relatively poor.Europe pattern slurry shield is provided with the air cushion storehouse, and it is higher that Excavation pressure is controlled relative Japanese model.Yet, the height of liquid level A is to lean on into the flow-control of stock pump and slurry pump to realize, so the liquid level of liquid level A is ceaselessly to change, this brings jolt to mud and water balance, it is stable to affect Excavation, in fact the pressure of Excavation is in the nonequilibrium condition under the certain process stage, and when the height h of liquid level changed, the pressure of gas was definite value, cause the variation of the pressure Z that acts on the bottom, cause the Excavation pressure oscillation, have influence on the stable of Excavation, cause certain ground settlement.
Summary of the invention
The present invention be directed to defective and problem that existing muddy water run-in index shield machine exists, a kind of gas cushion type mud water shield structure gas voltage-regulating system is provided.
Technical scheme: a kind of gas cushion type mud water shield structure gas voltage-regulating system, comprise the sealing muddy water storehouse that is surrounded by cutterhead, dividing plate, the sealing air cushion storehouse that is surrounded by dividing plate and rear wall, the muddy water storehouse is communicated with bottom, air cushion storehouse, and the inlet pipe and the outlet pipe that are communicated with the muddy water storehouse, it is characterized in that: in the air cushion storehouse, pressure sensor is installed, in the air cushion storehouse, is provided with air inlet pipe and the escape pipe that to control, and admission valve and air outlet valve are set respectively; Pressure sensor is communicated with outside air cushion storehouse pressure detection mechanism, and the output control terminal of this pressure-detecting device is connected with pneumoelectric pressure regulator input, pneumoelectric pressure regulator output respectively be installed in the air cushion storehouse on admission valve be connected with air outlet valve.
Be provided with liquid level sensor at top, air cushion storehouse, this liquid level sensor is connected with external smart controller input, and the intelligent controller output is connected with pneumoelectric pressure regulator input; The highly automated adjustments of gas pressure size of slurries that the size of gas pressure detects according to liquid level sensor.
Beneficial effect: 1, the pressure of the air cushion storehouse gas of gas cushion type mud water shield structure of the present invention can solve the pressure oscillation problem that causes because of reasons such as level change, and the gas pressure in the air cushion storehouse can in time be adjusted according to liquid level.Can be according to geological conditions to the pneumoelectric pressure regulator value of establishing, setting value is a definite value in the constant situation of geological conditions.
2, can judge according to the height of liquid level the pressure of gas in the air cushion storehouse, to realize by liquid level sensor, when liquid level changes, liquid level sensor feeds back to controller to liquid level information, by controller the corresponding signal of telecommunication is sent to electricity, gas dual control pressure transmitter, adjust air cushion storehouse pressure by pressure transmitter according to corresponding relation, reach base pressure and keep substantially constant, realize the stable of Excavation.
Description of drawings:
Fig. 1 is gas cushion type mud water shield structure gas voltage-regulating system schematic diagram of the present invention.
Number in the figure: 1 is cutterhead, and 2 is dividing plate, and 3 is outer wall, and 4 is the muddy water storehouse, and 5 is the air cushion storehouse, and 6 is pressure compensation opening, and 7 is the Water And Earth Pressures gradient, and 8 is the mud hydraulic pressure gradient, and 9 is liquid level sensor, and 10 is air inlet pipe, and 11 is stack.
The specific embodiment
Embodiment 1: referring to Fig. 1, in the gas cushion type mud water shield structure gas voltage-regulating system, cutterhead 1 and dividing plate 2 surround sealing muddy water storehouse 4, dividing plate 2 and rear wall 3 surround sealing air cushion storehouse 5, muddy water storehouse 4 is interconnected by pressure compensation opening 6 with 5 bottoms, air cushion storehouse, muddy water storehouse 4 arranges inlet pipe and outlet pipe, is provided with air inlet pipe 10 and the escape pipe 11 that can control in air cushion storehouse 5, and admission valve and air outlet valve are set respectively.Wherein, inner top is provided with liquid level sensor 9 in the air cushion storehouse, and this liquid level sensor 9 is connected with external smart controller input, and the intelligent controller output is connected with pneumoelectric pressure regulator input.Pressure sensor also is installed in the air cushion storehouse; Pressure sensor is communicated with outside air cushion storehouse pressure detection mechanism, and the output control terminal of this pressure-detecting device is connected with pneumoelectric pressure regulator input, pneumoelectric pressure regulator output respectively be installed in the air cushion storehouse on admission valve be connected with air outlet valve.
Claims (2)
1. gas cushion type mud water shield structure gas voltage-regulating system, comprise the sealing muddy water storehouse that is surrounded by cutterhead, dividing plate, the sealing air cushion storehouse that is surrounded by dividing plate and rear wall, the muddy water storehouse is communicated with bottom, air cushion storehouse, and the inlet pipe and the outlet pipe that are communicated with the muddy water storehouse, it is characterized in that: in the air cushion storehouse, pressure sensor is installed, in the air cushion storehouse, is provided with air inlet pipe and the escape pipe that to control, and admission valve and air outlet valve are set respectively; Pressure sensor is communicated with outside air cushion storehouse pressure detection mechanism, and the output control terminal of this pressure-detecting device is connected with pneumoelectric pressure regulator input, pneumoelectric pressure regulator output respectively be installed in the air cushion storehouse on admission valve be connected with air outlet valve.
2. gas cushion type mud water shield structure gas voltage-regulating system according to claim 1, it is characterized in that: be provided with liquid level sensor at top, air cushion storehouse, this liquid level sensor is connected with external smart controller input, and the intelligent controller output is connected with pneumoelectric pressure regulator input; The highly automated adjustments of gas pressure size of slurries that the size of gas pressure detects according to liquid level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103537777A CN102926763A (en) | 2012-09-21 | 2012-09-21 | Air cushion type slurry shield gas pressure adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103537777A CN102926763A (en) | 2012-09-21 | 2012-09-21 | Air cushion type slurry shield gas pressure adjusting system |
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| CN102926763A true CN102926763A (en) | 2013-02-13 |
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| CN2012103537777A Pending CN102926763A (en) | 2012-09-21 | 2012-09-21 | Air cushion type slurry shield gas pressure adjusting system |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332711A (en) * | 2015-11-11 | 2016-02-17 | 中国铁建重工集团有限公司 | Slurry shield machine with slurry circulation system |
| CN105334142A (en) * | 2015-12-16 | 2016-02-17 | 北京交通大学 | Experiment device for simulating shield mud membrane formation |
| CN107401678A (en) * | 2017-08-15 | 2017-11-28 | 中铁工程装备集团有限公司 | Full Pneumatic pressure compensation control system |
| CN107630705A (en) * | 2017-09-30 | 2018-01-26 | 中铁工程装备集团有限公司 | Extend slurry-discharging equipment and plasma discharge mode by the slurry shield pipeline of compressed air |
| CN108194089A (en) * | 2017-12-21 | 2018-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of slurry shield slurry loop circulation system |
| CN108775242A (en) * | 2018-06-05 | 2018-11-09 | 辽宁三三工业有限公司 | A kind of gas cushion type mud water shield machine muddy water storehouse mud compensation system |
| CN109469658A (en) * | 2018-11-07 | 2019-03-15 | 中铁工程装备集团有限公司 | A kind of gas cushion type mud water balance quick response two-in-parallel regulating system |
| CN110130915A (en) * | 2019-06-05 | 2019-08-16 | 中铁工程装备集团有限公司 | A kind of air-cushion type Direct-type pressure balance control system and its dredging method |
| CN111119914A (en) * | 2019-12-09 | 2020-05-08 | 中交天和机械设备制造有限公司 | Working mode conversion method of shield machine with adjustable density |
| CN111220236A (en) * | 2020-01-09 | 2020-06-02 | 中铁十四局集团大盾构工程有限公司 | Explosion-proof type liquid level detection device of air cushion bin of major diameter slurry shield machine |
| CN112727481A (en) * | 2021-02-05 | 2021-04-30 | 中铁工程装备集团有限公司 | Excavation cabin direct discharge slurry shield machine and excavation cabin direct discharge slurry method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08144697A (en) * | 1994-11-18 | 1996-06-04 | Hitachi Zosen Corp | Exchanging method of cutter bit of shield excavating machine |
| CN201354640Y (en) * | 2008-12-09 | 2009-12-02 | 中铁隧道集团隧道设备制造有限公司 | Automatic control system for balancing shield machine excavation chamber pressure |
| CN101705827A (en) * | 2009-10-21 | 2010-05-12 | 上海隧道工程股份有限公司 | Muddy water and air balance shield pressure control method and device |
| CN201739772U (en) * | 2010-08-17 | 2011-02-09 | 中铁隧道装备制造有限公司 | Slush shield slurry conveying system enhanced slush cabin and air cushion cabin circulation flow device |
| CN202325527U (en) * | 2011-12-09 | 2012-07-11 | 中铁隧道装备制造有限公司 | Slurry shield mud conveying device |
| CN202788866U (en) * | 2012-09-21 | 2013-03-13 | 中铁隧道装备制造有限公司 | Air-cushion-type gas pressure regulation system for slurry shield |
-
2012
- 2012-09-21 CN CN2012103537777A patent/CN102926763A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08144697A (en) * | 1994-11-18 | 1996-06-04 | Hitachi Zosen Corp | Exchanging method of cutter bit of shield excavating machine |
| CN201354640Y (en) * | 2008-12-09 | 2009-12-02 | 中铁隧道集团隧道设备制造有限公司 | Automatic control system for balancing shield machine excavation chamber pressure |
| CN101705827A (en) * | 2009-10-21 | 2010-05-12 | 上海隧道工程股份有限公司 | Muddy water and air balance shield pressure control method and device |
| CN201739772U (en) * | 2010-08-17 | 2011-02-09 | 中铁隧道装备制造有限公司 | Slush shield slurry conveying system enhanced slush cabin and air cushion cabin circulation flow device |
| CN202325527U (en) * | 2011-12-09 | 2012-07-11 | 中铁隧道装备制造有限公司 | Slurry shield mud conveying device |
| CN202788866U (en) * | 2012-09-21 | 2013-03-13 | 中铁隧道装备制造有限公司 | Air-cushion-type gas pressure regulation system for slurry shield |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332711A (en) * | 2015-11-11 | 2016-02-17 | 中国铁建重工集团有限公司 | Slurry shield machine with slurry circulation system |
| CN105334142A (en) * | 2015-12-16 | 2016-02-17 | 北京交通大学 | Experiment device for simulating shield mud membrane formation |
| CN107401678A (en) * | 2017-08-15 | 2017-11-28 | 中铁工程装备集团有限公司 | Full Pneumatic pressure compensation control system |
| CN107630705A (en) * | 2017-09-30 | 2018-01-26 | 中铁工程装备集团有限公司 | Extend slurry-discharging equipment and plasma discharge mode by the slurry shield pipeline of compressed air |
| CN108194089A (en) * | 2017-12-21 | 2018-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | A kind of slurry shield slurry loop circulation system |
| CN108775242A (en) * | 2018-06-05 | 2018-11-09 | 辽宁三三工业有限公司 | A kind of gas cushion type mud water shield machine muddy water storehouse mud compensation system |
| CN109469658A (en) * | 2018-11-07 | 2019-03-15 | 中铁工程装备集团有限公司 | A kind of gas cushion type mud water balance quick response two-in-parallel regulating system |
| CN110130915A (en) * | 2019-06-05 | 2019-08-16 | 中铁工程装备集团有限公司 | A kind of air-cushion type Direct-type pressure balance control system and its dredging method |
| CN110130915B (en) * | 2019-06-05 | 2024-03-29 | 中铁工程装备集团有限公司 | Air cushion type direct pressure balance control system and dredging method thereof |
| CN111119914A (en) * | 2019-12-09 | 2020-05-08 | 中交天和机械设备制造有限公司 | Working mode conversion method of shield machine with adjustable density |
| CN111119914B (en) * | 2019-12-09 | 2022-02-18 | 中交天和机械设备制造有限公司 | Working mode conversion method of shield machine with adjustable density |
| CN111220236A (en) * | 2020-01-09 | 2020-06-02 | 中铁十四局集团大盾构工程有限公司 | Explosion-proof type liquid level detection device of air cushion bin of major diameter slurry shield machine |
| CN112727481A (en) * | 2021-02-05 | 2021-04-30 | 中铁工程装备集团有限公司 | Excavation cabin direct discharge slurry shield machine and excavation cabin direct discharge slurry method |
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Application publication date: 20130213 |