CN201339473Y - Foam injection device for composite shield ground conditioning system - Google Patents
Foam injection device for composite shield ground conditioning system Download PDFInfo
- Publication number
- CN201339473Y CN201339473Y CNU2008201828141U CN200820182814U CN201339473Y CN 201339473 Y CN201339473 Y CN 201339473Y CN U2008201828141 U CNU2008201828141 U CN U2008201828141U CN 200820182814 U CN200820182814 U CN 200820182814U CN 201339473 Y CN201339473 Y CN 201339473Y
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- foam
- injection device
- pipeline
- shield
- maker
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Abstract
Disclosed is a foam injection device for a composite shield ground conditioning system, which is an improvement to the existing construction device, in particular to an improvement to a shield ground conditioning system. The foam injection device comprises: a foam box, a foam pump, a water pump, an industrial water system and a foam system interface; the foam box and the industrial water system are respectively connected with a foam generator through a foam pump pipeline and a water pump pipeline, the foam generator is connected with a foam system interface by a pipeline, and a foam outlet pipeline of the foam system interface is respectively connected with a capstan foam applicator, a screw conveyer foam applicator and a soil storehouse foam applicator of the shield. The utility model solves the problem of too high cost of the current shield ground conditioning system.
Description
Technical field
The utility model relates to construction implement, the foam injection device of the good system of particularly a kind of shield structure quarrel land reform.
Background technology
Shield structure foaming system is to improve and ripe system and technology in the shield structure of import.But what we can grasp just requires to operate in ready-made control room according to manual.Element and control system are imports, and systematic parameter and controlling parameter just as a result of offer the user.Wherein mechanism and change procedure are unknown.And the foaming system of import exists the too high problem of cost.
Chinese patent literature CN101298838 has announced a kind of " soil pressure balance shield machine back loading type cutter head foam injection apparatus ", and this device also can clean, overhaul in the dismounting of the cutterhead back side.But above-mentioned technology at the design at foamite system cutterhead position, is not perfect shield structure foam technology just.
The utility model content
The purpose of this utility model provides a kind of foam injection device that is used for the good system of composite shield quarrel land reform, and it has solved present import shield structure foaming system and has existed the too high problem of cost.
The foam injection device that is used for the good system of composite shield quarrel land reform of the present utility model comprises: bubble chamber, foam pump, water pump, industrial water system and foaming system interface; Bubble chamber is connected foam maker by the foam pump pipeline with the water pump pipeline respectively with industrial water system, foam maker connects the foaming system interface through pipeline, and the foam output pipe of foaming system interface connects the cutter head foam spout of shield structure, conveying worm applicator and native storehouse applicator respectively.
The foam injection device that is used for the good system of composite shield quarrel land reform of the present utility model also comprises compressed air cylinder, and compressed air cylinder is connected foam maker by a control valve is installed with a gas flowmeter pipeline.
On the pipeline of foam maker connection bubble chamber and industrial water system, a control valve and a fluid flowmeter are installed also.
Described foam maker is a tubular-shaped structures, longitudinally equally spacedly in the foam maker is divided into some mixed cells, is provided with the mixed cell internals in each mixed cell, and the mixed cell internals direction in the adjacent mixed cell is provided with inequality.The two ends of foam maker have to connect uses flange.
The utility model has mainly solved existing shield structure foaming system and has relied on import, the problem that cost is high.The advantage that also has the following aspects simultaneously.
(1) wearing and tearing of parts such as minimizing shield cutter, cutter, Tu Cang, native storehouse dividing plate, conveying worm.When the shield structure tunneled in the bigger soil body of frictional property, the cutter of having an effect with the soil body very easily wore and tore, and by inject foamed material in cutterhead, Tu Cang and screw machine, can reduce the frictional property of the soil body, the wearing and tearing that reduce.
(2) adjust soil body plastic fluidity in the native storehouse, in the combined type earth pressure balanced shield, EPBS method tunneling process, soil mass property how in the soil storehouse, the smooth driving of shield structure will directly be influenced, quarrel soil after the cutting has good plastic fluidity, not only can make the excavation face keep supporting pressure preferably, and the assurance casting is carried out smoothly, in shield driving, because the variation on stratum, the soil body of the unprocessed Tu Cang of entering is difficult to the plastic fluidity that obtains to wish usually, and problems such as generation " mud cake ", " obstruction " easily in this moment native storehouse have a strong impact on drivage efficiency.The injection of foam can effectively address the above problem.
(3) reduce the native water permeability of quarrel, the combined type earth pressure balanced shield, EPBS is when highly permeable layer foundation constructions such as sandy gravel stratum, the too high water pressure of excavation face can cause shield screw conveyer outlet generation underground water to run off in a large number, can gush when serious, thereby cause the excavation face to cave in, the influence driving carries out smoothly, injects the permeability that foam can effectively reduce quarrel soil, the generation of gushing in effectively preventing to tunnel.
(4) reduce the internal friction of cutting quarrel soil, reduce the wearing and tearing of cutterhead, cutter, Tu Cang, conveying worm, reduce the cutterhead moment of torsion, prevent the too high heating of machine energy consumption and break down.
Description of drawings
Fig. 1 is the mounting structure schematic diagram of the utility model in the shield structure;
Fig. 2 is the utility model schematic diagram;
Fig. 3 is the structural representation of the utility model foam maker;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 3;
Fig. 6 is the C-C sectional view of Fig. 3;
Fig. 7 is the D-D sectional view of Fig. 3.
Among the figure: cutterhead 1, shield shell 2, conveying worm 3, soil storehouse 4, cutter head foam spout 5, conveying worm applicator 6, soil storehouse applicator 7, foam maker 8, fluid flowmeter 9, bubble chamber 10, foam pump 11, water pump 12, industry and water system 13, control valve 14, gas flowmeter 15, compressed air cylinder 16, foaming system interface 17.
The specific embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the utility model is done detailed explanation.
Consult Fig. 1-Fig. 2, be used for the foam injection device of the good system of composite shield quarrel land reform, comprising: bubble chamber 10, foam pump 11, water pump 12, industrial water system 13 and foaming system interface 17; Bubble chamber 10 is connected foam maker 8 by foam pump 11 pipelines with water pump 12 pipelines respectively with industrial water system 13, foam maker 8 connects foaming system interface 17 through pipeline, and the foam output pipe of foaming system interface 17 connects the cutter head foam spout 5 of shield structure, conveying worm applicator 6 and native storehouse applicator 7 respectively.
Be used for the foam injection device of the good system of composite shield quarrel land reform, also comprise compressed air cylinder 16, compressed air cylinder 16 is connected foam maker 8 by a control valve 14 is installed with gas flowmeter 15 pipelines.
On the pipeline of foam maker 8 connection bubble chambers 10 and industrial water system 13, a control valve 14 and a fluid flowmeter 9 are installed also.
Consult Fig. 3-Fig. 7, described foam maker 8 is a tubular-shaped structures, longitudinally equally spacedly in the foam maker 8 be divided into some mixed cell 8-3, be provided with mixed cell internals 8-2 in each mixed cell 8-3, the mixed cell internals 8-2 direction in the adjacent mixed cell 8-3 is provided with inequality.The two ends of foam maker 8 have to connect uses flange 8-1.
Power unit
1) foam is supplied with in this unit, and to foam pump, after the foam pump outflow, get back to foam dope jar (bubble chamber) and be used for protecting foam pump and security of system by the overflow valve of leading up to by ball valve for foam dope; One the tunnel enters major loop.
2) water is supplied with and is provided the water source by water system, enters water pump by ball valve and pressure sensor.Wherein when pressure sensor pressure is lower than 0.5bar, illustrate that the water pump water inlet is not enough, water pump is out of service.After coming out, mixes with the foam major loop by water pump by one way valve, one way valve with mix before flow transmitter and pressure meter are housed, the flow that flow transmitter is measured water feeds back to PLC, by the flow of PLC control foam pump, the ratio of foam dope and water is remained on about 3: 97 again.
The control explanation
Foam mixing liquid and compressed-air actuated flow are detected by flow transmitter, and the aperture of PLC control electric control valve obtains best mixed proportion.The foam pressure that foam maker comes out is detected by pressure sensor, feeds back to PLC, makes the injection pressure of foam be lower than the soil pressure of setting.The control of injection rate is to realize by the aperture that controls to adjust valve, and actual flow is to detect by flow meter to feed back to PLC, can be adjusted to the flow that needs like this; If do not need to inject foam, and only need inject water, dual mode can be arranged: the one, the control room direct control, but the addition of foam need be set at " 0 "; The 2nd, in the shield structure, open valve, supply water to Tu Cang, conveying worm and cutterhead by pneumatic ball valve.
Foam maker
The most important element of foaming system is exactly a foam maker, because the domestic foam maker that is not used in shield structure foaming system, in utility model research, independent development the static mixer of suitable foaming, static mixer is a kind of high-efficiency mixing device that does not have moving component, by being fixed on the mixed cell internals in the pipe, make two strands or a plurality of fluids produce cutting, shearing, the rotation of fluid and mix again, reach fine dispersion and well-mixed purpose between the fluid.The special construction and the fluid motion that itself do not have moving component, dependence unit of product make immiscible fluid disperse separately, be mixed with each other, and reach good mixed effect.
Claims (5)
1, is used for the foam injection device of the good system of composite shield quarrel land reform, it is characterized in that, comprising: bubble chamber (10), foam pump (11), water pump (12), industrial water system (13) and foaming system interface (17); Bubble chamber (10) is connected foam maker (8) by foam pump (11) pipeline with water pump (12) pipeline respectively with industrial water system (13), foam maker (8) connects foaming system interface (17) through pipeline, and the foam output pipe of foaming system interface (17) connects cutter head foam spout (5), conveying worm applicator (6) and the native storehouse applicator (7) of shield structure respectively.
2, the foam injection device that is used for the good system of composite shield quarrel land reform as claimed in claim 1, it is characterized in that, also comprise compressed air cylinder (16), compressed air cylinder (16) is connected foam maker (8) by a control valve (14) is installed with a gas flowmeter (15) pipeline.
3, the foam injection device that is used for the good system of composite shield quarrel land reform as claimed in claim 1, it is characterized in that, on the pipeline of foam maker (8) connection bubble chamber (10) and industrial water system (13), a control valve (14) and a fluid flowmeter (9) are installed also.
4, the foam injection device that is used for the good system of composite shield quarrel land reform as claimed in claim 1, it is characterized in that, described foam maker (8) is a tubular-shaped structures, the longitudinally equally spaced some mixed cells (8-3) that are divided in the foam maker (8), be provided with mixed cell internals (8-2) in each mixed cell (8-3), mixed cell internals (8-2) direction in the adjacent mixed cell (8-3) is provided with inequality.
5, the foam injection device that is used for the good system of composite shield quarrel land reform as claimed in claim 4 is characterized in that, the two ends of foam maker (8) have to connect uses flange (8-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201828141U CN201339473Y (en) | 2008-12-24 | 2008-12-24 | Foam injection device for composite shield ground conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201828141U CN201339473Y (en) | 2008-12-24 | 2008-12-24 | Foam injection device for composite shield ground conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201339473Y true CN201339473Y (en) | 2009-11-04 |
Family
ID=41235018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201828141U Expired - Lifetime CN201339473Y (en) | 2008-12-24 | 2008-12-24 | Foam injection device for composite shield ground conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201339473Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812990A (en) * | 2010-03-05 | 2010-08-25 | 上海真砂隆福机械有限公司 | Slurry-adding foam system |
| CN102071942A (en) * | 2010-12-02 | 2011-05-25 | 沈阳重型机械集团有限责任公司 | Processing method for protecting excavation place of shield machine from mudlining |
| CN102337902A (en) * | 2011-08-30 | 2012-02-01 | 刘勇谋 | Slag removal device for tunneling operation |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN101812989B (en) * | 2009-12-28 | 2013-04-10 | 宏润建设集团股份有限公司 | Foam generating device and foam generating method |
| CN104234719A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Foaming system of shield tunneling machine |
| CN105484754A (en) * | 2015-12-22 | 2016-04-13 | 上海隧道工程有限公司 | Module type shield foaming system |
| CN106050249A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Muck improving medium conveying device of shield tunneling machine |
| CN106444608A (en) * | 2016-10-31 | 2017-02-22 | 中铁工程装备集团有限公司 | Multifunctional fluid testing platform for shield tunneling machine |
| CN107664034A (en) * | 2016-07-29 | 2018-02-06 | 上海力行工程技术发展有限公司 | A kind of shield foam air multistage adjusting means |
| CN108425681A (en) * | 2017-10-27 | 2018-08-21 | 宏润建设集团股份有限公司 | A kind of gas soil joint balance shield machine and its face balance control method |
| CN111502679A (en) * | 2020-05-19 | 2020-08-07 | 中铁十四局集团大盾构工程有限公司 | Simulation shield constructs blade disc mud cake and forms device |
| CN114033395A (en) * | 2021-10-28 | 2022-02-11 | 中交第二航务工程局有限公司 | Mud cake preventing device and method for earth pressure balance type shield machine |
-
2008
- 2008-12-24 CN CNU2008201828141U patent/CN201339473Y/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812989B (en) * | 2009-12-28 | 2013-04-10 | 宏润建设集团股份有限公司 | Foam generating device and foam generating method |
| CN101812990B (en) * | 2010-03-05 | 2013-06-19 | 上海真砂隆福机械有限公司 | Slurry-adding foam system |
| CN101812990A (en) * | 2010-03-05 | 2010-08-25 | 上海真砂隆福机械有限公司 | Slurry-adding foam system |
| CN102071942A (en) * | 2010-12-02 | 2011-05-25 | 沈阳重型机械集团有限责任公司 | Processing method for protecting excavation place of shield machine from mudlining |
| CN102071942B (en) * | 2010-12-02 | 2012-09-05 | 沈阳重型机械集团有限责任公司 | Processing method for protecting excavation place of shield machine from mud lining |
| CN102337902A (en) * | 2011-08-30 | 2012-02-01 | 刘勇谋 | Slag removal device for tunneling operation |
| CN102364050B (en) * | 2011-10-31 | 2014-12-24 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN104234719A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Foaming system of shield tunneling machine |
| CN105484754A (en) * | 2015-12-22 | 2016-04-13 | 上海隧道工程有限公司 | Module type shield foaming system |
| CN106050249A (en) * | 2016-07-20 | 2016-10-26 | 江苏腾旋科技股份有限公司 | Muck improving medium conveying device of shield tunneling machine |
| CN106050249B (en) * | 2016-07-20 | 2018-06-26 | 江苏腾旋科技股份有限公司 | A kind of sediment improvement medium conveying apparatus of shield machine |
| CN107664034A (en) * | 2016-07-29 | 2018-02-06 | 上海力行工程技术发展有限公司 | A kind of shield foam air multistage adjusting means |
| CN106444608A (en) * | 2016-10-31 | 2017-02-22 | 中铁工程装备集团有限公司 | Multifunctional fluid testing platform for shield tunneling machine |
| CN106444608B (en) * | 2016-10-31 | 2017-09-22 | 中铁工程装备集团有限公司 | A kind of shield machine fluid multifunctional testing stand |
| CN108425681A (en) * | 2017-10-27 | 2018-08-21 | 宏润建设集团股份有限公司 | A kind of gas soil joint balance shield machine and its face balance control method |
| CN111502679A (en) * | 2020-05-19 | 2020-08-07 | 中铁十四局集团大盾构工程有限公司 | Simulation shield constructs blade disc mud cake and forms device |
| CN114033395A (en) * | 2021-10-28 | 2022-02-11 | 中交第二航务工程局有限公司 | Mud cake preventing device and method for earth pressure balance type shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: China Railway Tunneling Equipment Co., Ltd. Assignor: Zhongtie Tunnel Group Co., Ltd. Contract record no.: 2010410000043 Denomination of utility model: Foam injection device for composite shield ground conditioning system Granted publication date: 20091104 License type: Exclusive License Record date: 20100429 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20091104 |
|
| CX01 | Expiry of patent term |