CN201568058U - Improved foam pipeline system of shield machine - Google Patents
Improved foam pipeline system of shield machine Download PDFInfo
- Publication number
- CN201568058U CN201568058U CN2009202895595U CN200920289559U CN201568058U CN 201568058 U CN201568058 U CN 201568058U CN 2009202895595 U CN2009202895595 U CN 2009202895595U CN 200920289559 U CN200920289559 U CN 200920289559U CN 201568058 U CN201568058 U CN 201568058U
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- foam
- pipeline
- line
- cutterhead
- shield machine
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Abstract
The utility model relates to an improved foam pipeline system of a shield machine, which comprises a foam injection pipeline system and a control system for controlling the pipeline, wherein the foam injection pipeline is provided with a plurality of main pipelines, each main pipeline is provided with a foam generator, the foam injection end of the plurality of main pipelines is respectively communicated with a foam stock solution box and a water source through a foam pump and a water pump, the foam output-input end of one main pipeline is provided with two branch pipes, the two branch pipes are respectively communicated with a soil cabin and a single-level helical conveyor, the foam input-output end of other main pipelines is communicated with an injection port of a cutter head front panel, the central part of a cutter head is provided with a water-gas pipeline, and the top part of the soil cabin is simultaneously provided with a slurry injection pipe. The improved foam pipeline system can ensure the supply pressure of each injection port, and reduces the stoppage possibility caused by the inadequate pressure of the front injection port of the cuter head. A control panel independently controls each pipeline, the operation personnel can instantly examine and remove the stoppage of the pipeline, and the shield cover of the injection port also can ensure that the injection port is free from being blocked by the mud.
Description
Technical field
The utility model relates to the foam injected system of shield machine, specifically is a kind of improved shield machine foam line system.
Background technology
The blocked thing of foam line all took place in shield machine to some extent in tunneling process at present, particularly tunnel containing under the high geological conditions of glutinous grain, foam line is in case stop up, if untimely mediation, will cause forming mud cake before the cutterhead, propulsive torque strengthens, drilling depth difficulty, cutter eccentric wear.In the rich groundwater stratum, simultaneously, also can be accompanied by the generation of gushing, make shield driving difficult to move even one step.Cause shield structure foaming system blocked, except aspect operational administrative, having certain problem, to a great extent because existing shield machine exists defective to cause on the foaming system circuit design.Now the EPB shield structure made from Germany extra large Rake company is an example, and the problem that exists in the design of labor foaming system proposes detailed improvement project at design defect.
The foam injected system has three kinds of operator schemes: manual, semi-automatic and full-automatic.Its foaming system pipeline is provided with four main lines as shown in Figure 1, and before its four main lines all were injected into the cutterhead panel, every pipeline branched into two pipelines again to each inlet of cutterhead in the cutterhead casing.Pipeline of the equal branch of first, second and third main line is injected into Tu Cang, and two pipelines of the 4th main line branch are injected into conveying worm.The circuit design defective that this shows foaming system is that four main lines are to be injected into each inlet through continuous branch line, the pressure of the outside supplying foam of each foam maker is a definite value, because main line is provided with the branch line with diameter, then the pressure in the pipeline is continuous attenuation trend, cause branch line many more, the pressure that then arrives inlet is just more little.
Shield machine is in tunneling process, and the foam injection is the good means of main quarrel land reform of tunneling at compound stratum before the cutterhead panel, the water and soil pressure maximum that its inlet is faced, and the pressure of Tu Cang takes second place, the conveying worm minimum.Because the foam inlet is directly faced the earth of face before the cutterhead panel, when especially in the high stratum of glutinous grain content, tunneling, be easy to cause the inlet on the cutterhead blocked, inlet before the cutterhead panel is in a single day blocked, then will cause the foam of this main line supply all to be injected in Tu Cang or the conveying worm.Simultaneously when stopping foam and inject such as the branch line in native storehouse close untimelyly, also will cause in the native storehouse the very fast inlet of mud to clamp-on pipeline from native storehouse foam, progressively silt up and enter main line, cause the whole piece main line blocked.
Cooperate pipe-line system, also there are some problems in its control system, and control system has only shown four flow, pressure equivalences that the main line foam injects.In the shield driving process, if the inlet before the cutterhead panel is blocked, then the foam of this main line will all be injected into Tu Cang (or) in the conveying worm, and any variation does not take place in the foam flow on the panel of control room, causes the operating personnel in control room to have no way of finding out about it, in the course of time, owing to do not have foam to inject before the cutterhead,, cause the cutterhead moment of torsion to strengthen with very fast formation mud cake, the driving difficulty, the cutter eccentric wear.In a single day mud cake forms, if do not possess the condition of opening a position, it will be very difficult wanting to remove mud cake and dredge foam line.This shows whether foam on the foaming system control panel injects situation normal, have only when certain bar main line is complete just can be found when blocked.
Except pipe-line system and control system exist a series of problem, inlet before its cutterhead panel and cutterhead box back surface adopt the removable type sealing of hole, and foam jet is 8 on the cutterhead panel.Inlet has adopted one way valve, and in a single day blocked when the cutterhead inlet, then operating personnel must enter Tu Cang, and foam jet the cutterhead casing is extracted cleaning could dredge pipeline behind from the cutterhead panel.Its linear velocity minimum when rotate because of cutterhead in the centre of cutterhead panel, the easiest generation mud cake.The one way valve of foam inlet adopts the high-elastic rubber that outwards is the cross opening, directly in the face of the soil body of face, without any safeguard measure, because the extruding of the soil body during cutterhead jacking, is easy to cause earth to clamp-on foam jet and with its obstruction.Simultaneously, do not take more effective prophylactico-therapeutic measures in design in the central area of the easiest formation mud cake of cutterhead.
Summary of the invention
The purpose of this utility model is according to the deficiencies in the prior art, a kind of pressure of guaranteeing the supply of foam inlet is provided, reduce greatly because the blocked probability that the inlet insufficient pressure causes before the cutterhead, operating personnel can in time be checked through line clogging, cleaning in time, nor the shield machine foaming system pipeline that can cause inlet earth to stop up.
Described improved shield machine foaming system pipeline, the control system that comprises foam filling line system and control piper, described foam filling line system comprises foam maker, water pump, foam pump, cutterhead, Tu Cang, the single step helical conveyer, it is characterized in that: described foam filling line is provided with five main lines, on every main line, be provided with a foam maker, the foam injection end of many main lines is respectively by foam pump and water pump and foam dope case and water source UNICOM, wherein the foam of a main line is come in and gone out to hold and is provided with two branched pipes, with Tu Cang and single step helical conveyer UNICOM, the inlet UNICOM with the cutterhead front panel is held in the discrepancy of the foam of other main line respectively; Also be provided with aqueous vapor pipeline and mud ascending pipe in the filling line system, the aqueous vapor pipeline is connected to the cutterhead center and puts the place, and the mud ascending pipe is connected to the top of Tu Cang; Described control system is provided with many control circuits, wherein a control circuit is provided with two branch control line roads, the signal input part on two branch control line roads is connected with the pipeline that injects Tu Cang and single step helical conveyer, and the signal input part of other control circuit is connected with the main line that injects cutterhead respectively.
Described main line and control circuit have five respectively.
Be provided with protective cover outside the inlet before the cutterhead panel.
Described foam pump and water pump are located at respectively on the pipeline at close stoste case and water source.
Advantage of the present utility model: 1,4 main lines after improving are by foam maker supplying foam independently and there is not any branch line, guaranteed the pressure of foam inlet supply, greatly reduced because the blocked probability that cutterhead front nozzle insufficient pressure causes; Simultaneously, because 4 the preceding main line of supply cutterhead panel does not have branch line, in a single day in tunneling process, stop up, operating personnel in the control room then are easy to show from the flow of control panel and find and notify the related personnel in time to handle, can not cause causing after blocked formed mud cake before the cutterhead panel, the driving difficulty is just judged the preceding blocked already consequence of foamed pipe of cutterhead panel.
2, set up an aqueous vapor pipeline in the centre of cutterhead, water under high pressure, gas supply are provided, guaranteed that this pipeline can not stopped up easily, thereby can effectively prevent the formation of cutterhead central area mud cake, and central cutter is had the cooling protection effect.
3, a ￠ 100 mud ascending pipes have also been prepared simultaneously at the Tu Cang top, so that strengthen quarrel land reform in the native storehouse good.
4. control the pipeline that route is controlled four straight-through cutterheads respectively for four of control panel; article 5, control circuit control is fed to two branch lines of Tu Cang and conveying worm respectively; any pipeline occur flow be 0 or flow less than standard value; can judge pipeline blockage or have part to silt situation up; mediation is in time handled; thereby can effectively guarantee the supply of foam, the long shutdown that causes after having avoided pipeline blocked is dredged.
6, be provided with protective cover outside inlet, can effectively avoid foam jet directly in the face of the soil body of face, spout is disposed radially, and in the time of can effectively avoiding cutterhead to rotate earth is clamp-oned spout.
The utility model can be guaranteed the pressure of each foam inlet supply, reduce greatly because the blocked probability that the inlet insufficient pressure causes before the cutterhead, its guidance panel also can be controlled every pipeline separately, operating personnel can in time be checked through line clogging and cleaning, and the door of inlet can also guarantee that inlet can not stopped up by earth.
Description of drawings
Fig. 1 is the structural representation of former pipeline,
Fig. 2 is a pipeline schematic diagram of the present utility model,
Fig. 3 is the generalized section of cutterhead inlet.
Among the figure: 1-foam maker, 2-water pump, 3-foam pump, 4-cutterhead, 5-Tu Cang, 6-single step helical conveyer, 7-main line, 8-aqueous vapor pipeline, 9-foam dope case, 10-water source, 11-inlet, 12-protective cover, 13-mud ascending pipe.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.Among Fig. 2, described improved shield machine foaming system pipeline, the control system that comprises foam filling line system and control piper, described foam filling line system comprises foam maker 1, water pump 2, foam pump 3, cutterhead 4, soil storehouse 5, single step helical conveyer 6, it is characterized in that: described foam filling line is provided with many main lines 7, on every main line, be provided with a foam maker 1, the foam injection end of many main lines 7 is respectively by foam pump 3 and water pump 2 and foam dope case 9 and water source 10 UNICOMs, wherein the foam of a main line is come in and gone out to hold and is provided with two branched pipes, with native storehouse 5 and single step helical conveyer 6 UNICOMs, inlet 11 UNICOMs with cutterhead 4 front panels are held in the discrepancy of the foam of other main line respectively.Described foam pump 3 and water pump 2 are located at respectively on the pipeline at close stoste case 9 and water source 10.
Trunk line of the present utility model is provided with five, and wherein 4 main lines 7 are by foam maker 1 supplying foam independently and there is not any branch line, and 2 pipelines of the 5th main line 7 branches are supplied with native storehouse 5 and conveying worm 6 respectively.The foam of having guaranteed cutterhead 4 front panels is in liberal supply, and is difficult for stopping up, and has also guaranteed the pressure of foam inlet supply, greatly reduces because the blocked probability that cutterhead front nozzle insufficient pressure causes.
The control system of described pipeline is provided with five control circuits, wherein a control circuit is provided with two branch control line roads, the signal input part on two branch control line roads is connected with the pipeline 7 that injects native storehouse 5 and single step helical conveyer 6, and the signal input part of other four control circuits is connected with four pipelines 7 that inject cutterhead 4 respectively.Because 4 the preceding main line of supply cutterhead panel does not have branch line; in tunneling process any pipeline occur flow be 0 or flow less than standard value; can judge pipeline blockage or have part to silt situation up; operating personnel in the control room then are easy to show discovery and notify the related personnel in time to handle from the flow of control panel; mediation is in time handled; thereby can effectively guarantee the supply of foam, the long shutdown that causes after having avoided pipeline blocked is dredged.Can not cause causing after blocked formed mud cake before the cutterhead panel, the driving difficulty is just judged the preceding blocked already consequence of foamed pipe of cutterhead panel.
In the filling line system, also be provided with aqueous vapor pipeline 8 and mud ascending pipe 13, aqueous vapor pipeline 8 is connected to cutterhead 4 centers and puts the place, water under high pressure, gas supply are provided, guarantee that this pipeline can not stopped up easily, thereby can effectively prevent the formation of cutterhead central area mud cake, and central cutter is had the cooling protection effect; Mud ascending pipe 13 is connected to the top in native storehouse 5, and the employing ￠ 100 mud ascending pipes of mud ascending pipe are so that strengthen quarrel land reform in the native storehouse good.Described foam pump 3 and water pump 2 are located at respectively on the pipeline at close stoste case 9 and water source 10.
Among Fig. 3, be provided with protective cover 12 outside the inlet 11 before cutterhead 4 panels.Protective cover 12 adopts δ 14 plates to be welded, and the radially welding along cutterhead 4 radially sprays foam.Can effectively avoid foam inlet 11 directly in the face of the soil body of face, inlet 11 is disposed radially, and in the time of can effectively avoiding cutterhead 4 to rotate earth is clamp-oned inlet 11.
Claims (5)
1. improved shield machine foam line system, the control system that comprises foam filling line system and control piper, described foam filling line system comprises foam maker (1), water pump (2), foam pump (3), cutterhead (4), Tu Cang (5), single step helical conveyer (6), it is characterized in that: described foam filling line is provided with many main lines (7), on every main line, be provided with a foam maker (1), the foam injection end of many main lines (7) is respectively by foam pump (3) and water pump (2) and foam dope case (9) and water source (10) UNICOM, wherein the foam of a main line is come in and gone out to hold and is provided with two branched pipes, respectively with Tu Cang (5) and single step helical conveyer (6) UNICOM, the foam discrepancy end of other main line and inlet (11) UNICOM of cutterhead (4) front panel, in the filling line system, also be provided with aqueous vapor pipeline (8) and mud ascending pipe (13), aqueous vapor pipeline (8) is connected to cutterhead (4) center and puts the place, and mud ascending pipe (13) is connected to the top of Tu Cang (5).
2. a kind of improved shield machine foam line according to claim 1 system, it is characterized in that: described control system is provided with many control circuits, wherein a control circuit is provided with two branch control line roads, the signal input part on two branch control line roads is connected with the pipeline (7) that injects Tu Cang (5) and single step helical conveyer (6), and the signal input part of other control circuit is connected with the main line (7) that injects cutterhead (4) respectively.
3. a kind of improved shield machine foam line according to claim 2 system, it is characterized in that: described main line (7) and control circuit have five respectively.
4. a kind of improved shield machine foam line according to claim 1 system is characterized in that: be provided with protective cover (12) outside the inlet (11) before cutterhead (4) panel.
5. a kind of improved shield machine foam line according to claim 1 system is characterized in that: described foam pump (3) and water pump (2) are located at respectively on the pipeline near stoste case (9) and water source (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202895595U CN201568058U (en) | 2009-12-25 | 2009-12-25 | Improved foam pipeline system of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202895595U CN201568058U (en) | 2009-12-25 | 2009-12-25 | Improved foam pipeline system of shield machine |
Publications (1)
| Publication Number | Publication Date |
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| CN201568058U true CN201568058U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202895595U Expired - Fee Related CN201568058U (en) | 2009-12-25 | 2009-12-25 | Improved foam pipeline system of shield machine |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN103397887A (en) * | 2013-08-19 | 2013-11-20 | 中交天和机械设备制造有限公司 | Mud and foam adding system of shield tunneling machine |
| CN104100274A (en) * | 2014-07-10 | 2014-10-15 | 中铁工程装备集团有限公司 | Crossed back type muck modifier injection port of shield tunneling machine |
| CN104234719A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Foaming system of shield tunneling machine |
| CN105134227A (en) * | 2015-09-14 | 2015-12-09 | 徐工集团凯宫重工南京有限公司 | Foam jet and shield tunneling machine foaming system |
| CN105587323A (en) * | 2016-03-01 | 2016-05-18 | 厦门厦工中铁重型机械有限公司 | Anti-blocking mechanism applicable to shield tunneling machine cutterhead foam nozzle and method thereof |
| CN107420110A (en) * | 2017-08-30 | 2017-12-01 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine washes away spout anti-block apparatus and control method |
| CN109026040A (en) * | 2018-08-03 | 2018-12-18 | 中国电建集团铁路建设有限公司 | A kind of synchronization bi-material layers sediment improvement system for earth pressure balanced shield, EPBS |
| CN109595031A (en) * | 2018-11-02 | 2019-04-09 | 山东大学 | Three liquid support with backfilling construction methods and system in shield tunnel |
| CN112343616A (en) * | 2020-11-24 | 2021-02-09 | 中交路桥华南工程有限公司 | Shield tunneling machine muck improving method |
| 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 |
-
2009
- 2009-12-25 CN CN2009202895595U patent/CN201568058U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN102364050A (en) * | 2011-10-31 | 2012-02-29 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN102364050B (en) * | 2011-10-31 | 2014-12-24 | 江苏凯宫隧道机械有限公司 | Foam launching device |
| CN103397887B (en) * | 2013-08-19 | 2016-01-06 | 中交天和机械设备制造有限公司 | A kind of shield machine add mud, foaming system |
| CN103397887A (en) * | 2013-08-19 | 2013-11-20 | 中交天和机械设备制造有限公司 | Mud and foam adding system of shield tunneling machine |
| CN104100274A (en) * | 2014-07-10 | 2014-10-15 | 中铁工程装备集团有限公司 | Crossed back type muck modifier injection port of shield tunneling machine |
| CN104234719A (en) * | 2014-09-20 | 2014-12-24 | 辽宁三三工业有限公司 | Foaming system of shield tunneling machine |
| CN105134227A (en) * | 2015-09-14 | 2015-12-09 | 徐工集团凯宫重工南京有限公司 | Foam jet and shield tunneling machine foaming system |
| CN105587323A (en) * | 2016-03-01 | 2016-05-18 | 厦门厦工中铁重型机械有限公司 | Anti-blocking mechanism applicable to shield tunneling machine cutterhead foam nozzle and method thereof |
| CN105587323B (en) * | 2016-03-01 | 2018-03-06 | 厦门厦工中铁重型机械有限公司 | A kind of anti-block apparatus and its method suitable for cutter head of shield machine applicator |
| CN107420110A (en) * | 2017-08-30 | 2017-12-01 | 中铁工程装备集团有限公司 | A kind of cutter head of shield machine washes away spout anti-block apparatus and control method |
| CN107420110B (en) * | 2017-08-30 | 2023-04-18 | 中铁工程装备集团有限公司 | Shield tunneling machine cutter head scouring nozzle anti-blocking device and control method |
| CN109026040A (en) * | 2018-08-03 | 2018-12-18 | 中国电建集团铁路建设有限公司 | A kind of synchronization bi-material layers sediment improvement system for earth pressure balanced shield, EPBS |
| CN109595031A (en) * | 2018-11-02 | 2019-04-09 | 山东大学 | Three liquid support with backfilling construction methods and system in shield tunnel |
| CN112343616A (en) * | 2020-11-24 | 2021-02-09 | 中交路桥华南工程有限公司 | Shield tunneling machine muck improving method |
| CN112343616B (en) * | 2020-11-24 | 2023-01-17 | 中交路桥华南工程有限公司 | Shield tunneling machine muck improving method |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20151225 |
|
| EXPY | Termination of patent right or utility model |