CN111536309B - Pipe jacking machine mud control system - Google Patents
Pipe jacking machine mud control system Download PDFInfo
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- CN111536309B CN111536309B CN202010397286.7A CN202010397286A CN111536309B CN 111536309 B CN111536309 B CN 111536309B CN 202010397286 A CN202010397286 A CN 202010397286A CN 111536309 B CN111536309 B CN 111536309B
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- valve
- mud
- proximity switch
- electromagnetic valve
- control
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/028—Laying or reclaiming pipes on land, e.g. above the ground in the ground
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- 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
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/06—Accessories therefor, e.g. anchors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/088—Pipe-line systems for liquids or viscous products for solids or suspensions of solids in liquids, e.g. slurries
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a slurry control system of a pipe jacking machine, and belongs to the technical field of trenchless machines. The control module is connected with a first electromagnetic valve and a second electromagnetic valve in a control mode; the first electromagnetic valve is in control connection with the bypass valve, and the second electromagnetic valve is in control connection with the internal circulating valve; the control module is electrically connected with a pressure sensor for detecting the pressure in the pipe jacking machine mud system and a proximity switch for detecting whether the bypass valve and the inner circulating valve are opened and closed in place or not. According to different construction geology, the system pressure value can be adjusted through the human-computer display interface, the preset pressure P1 is properly adjusted, automatic control of the slurry system under different pressures and different flow states is achieved, and the method has the advantages of reducing pipeline flushing time, improving construction efficiency, reducing construction difficulty and improving automation degree.
Description
Technical Field
The invention relates to the technical field of trenchless machinery, in particular to a slurry control system of a pipe jacking machine.
Background
Due to the complex working conditions in the construction process of the push bench, the situations of blanking accumulation of hard rock strata, soft soil strata, muddy water cavities, blockage of mud discharge pipes and the like, the experience requirement on operators is high, and the operators with rich experience in the market are relatively scarce, so that the construction progress is slow, and the mechanical failure rate is high.
Disclosure of Invention
In order to solve the technical problems, the invention provides a push bench mud control system, so that the difficulty of equipment operation is reduced, and the construction efficiency of the equipment is improved.
The invention is realized by the following technical scheme: a push bench mud control system comprises a control module, a bypass valve and an internal circulating valve, wherein the control module is used for controlling a mud conveying motor and a mud discharging motor, and the bypass valve and the internal circulating valve are installed in the push bench mud system; the first electromagnetic valve is in control connection with the bypass valve, and the second electromagnetic valve is in control connection with the internal circulating valve; the control module is electrically connected with a pressure sensor for detecting the pressure in the pipe jacking machine mud system and a proximity switch for detecting whether the bypass valve and the inner circulating valve are opened and closed in place or not.
It further comprises the following steps: the number of the pressure sensors is four; the first pressure sensor and the second pressure sensor are respectively arranged at the upper end and the lower end of the rear end plate of the muddy water cavity and are respectively used for measuring the pressure of the upper part and the lower part of the muddy water cavity; and the third pressure sensor and the fourth pressure sensor are respectively arranged in the mud inlet pipeline and the mud discharge pipeline and are respectively used for measuring the mud pressure in the mud inlet pipeline and the mud discharge pipeline.
The number of the proximity switches is four; the proximity switch I and the proximity switch II are respectively arranged on two sides of the bypass valve and used for detecting whether the bypass valve is opened and closed in place; and the proximity switch III and the proximity switch IV are respectively arranged on two sides of the inner circulating valve and used for judging whether the inner circulating valve is opened or closed in place.
The control module comprises a PLC unit and an extension module, and the PLC unit and the extension module are communicated through a DeviceNet protocol.
The PLC unit is connected with a human-computer display interface through a network cable, and the human-computer display interface is used for displaying parameters of the sensor and the on-off state of the electromagnetic valve; the PLC unit and the man-machine display interface are installed in the bottom surface operation table.
The expansion module is installed in a control cabinet inside the machine head, and the expansion module is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the pressure sensor and the proximity switch.
The inner circulating valve is connected with an inner circulating valve push-pull oil cylinder used for controlling the opening and closing of the inner circulating valve, and the electromagnetic valve II is connected with the inner circulating valve push-pull oil cylinder in a control mode.
The bypass valve is connected with a bypass valve push-pull oil cylinder for controlling the bypass valve to open and close, and the first electromagnetic valve is connected with the bypass valve push-pull oil cylinder in a control mode.
When in work;
when the sludge discharge pressure is greater than the set pressure P1, the system judges that the sludge discharge pipeline is blocked, the slurry system is switched to a bypass state, the sludge feeding pipeline is directly communicated with the sludge discharge pipeline, and the blocked part of the pipeline is washed; when the pressure of the muddy water cavity is greater than the set pressure P3, the system judges that the muddy water cavity is discharged and accumulated, the mud system is switched to an internal circulation state, and the mud conveying pipeline is directly communicated with the muddy water cavity to flush the muddy water cavity.
Compared with the prior art, the invention has the beneficial effects that:
according to different construction geology, the pressure value of the system can be adjusted through a human-computer display interface, such as a rock stratum, the footage speed is low, the blanking is less, the preset pressure P1 is properly reduced, the pipeline flushing time is shortened, and the construction efficiency is improved; when encountering a soil stratum, the device has the advantages of high footage speed and more blanking, properly improving the preset pressure P3, avoiding serious blockage of a pipeline and improving the construction efficiency.
Drawings
FIG. 1 is a system configuration diagram of an embodiment of the present invention;
FIG. 2 is a diagram illustrating the state of sludge feeding and discharging according to the embodiment of the present invention;
FIG. 3 is a diagram of a bypass state of an embodiment of the present invention;
FIG. 4 is a diagram of an example inner loop of the present invention;
FIG. 5 is a system flow diagram of an embodiment of the present invention;
in the figure: 1. a proximity switch I; 2. a bypass valve; 3. a proximity switch II; 4. a bypass valve push-pull oil cylinder; 5. a proximity switch III; 6. an internal circulation valve; 7. a proximity switch IV; 8. the internal circulating valve pushes and pulls the oil cylinder.
Detailed Description
The following is a specific embodiment of the present invention, which will be further described with reference to the accompanying drawings.
As shown in fig. 1 and 2, the control module includes a PLC unit and an expansion module. The PLC unit and the man-machine display interface are arranged in a ground operation platform; the PLC unit is used for controlling the mud feeding motor and the mud discharging motor, the man-machine display interface is communicated with the PLC unit through a network cable, and the man-machine display interface is used for displaying parameters of the sensor and the on-off state of the electromagnetic valve. The expansion module is arranged in a control cabinet in the machine head, is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the plurality of pressure sensors and the proximity switch and acquires corresponding signals; the expansion module and the PLC unit are communicated through a DeviceNet protocol and then transmitted to a human-computer display interface through a network cable to be displayed.
The expansion module is connected with the first electromagnetic valve, the second electromagnetic valve, a pressure sensor for detecting the pressure in the pipe jacking machine slurry system, and a proximity switch for detecting whether the bypass valve 2 and the inner circulating valve 6 are opened and closed in place.
A bypass valve push-pull oil cylinder 4 used for controlling the bypass valve 2 to open and close is connected with a bypass valve 2 in the pipe jacking machine mud system, and a first electromagnetic valve is connected with the bypass valve push-pull oil cylinder 4 in a control mode. An inner circulating valve 6 in the pipe jacking machine mud system is connected with an inner circulating valve push-pull oil cylinder 8 used for controlling the opening and closing of the inner circulating valve 6, and a second electromagnetic valve is connected with the inner circulating valve push-pull oil cylinder 8 in a control mode.
The number of the pressure sensors is four; the first pressure sensor and the second pressure sensor are respectively arranged at the upper end and the lower end of the rear end plate of the muddy water cavity, and are respectively used for measuring the pressure of the upper part and the lower part of the muddy water cavity and uploading signals to the control module; and the third pressure sensor and the fourth pressure sensor are respectively arranged in the mud inlet pipeline and the mud discharge pipeline and are respectively used for measuring the mud pressure in the mud inlet pipeline and the mud discharge pipeline and uploading signals to the control module.
The proximity switches are four in total; the proximity switch I1 and the proximity switch II 3 are respectively arranged on two sides of the bypass valve 2, and the proximity switch I1 and the proximity switch II 3 are used for detecting whether the bypass valve 2 is opened or closed in place and uploading signals to the control module; the proximity switch III 5 and the proximity switch IV 7 are respectively arranged on two sides of the inner circulating valve 6, and the proximity switch III 5 and the proximity switch IV 7 are used for judging whether the inner circulating valve 6 is opened or closed in place or not and uploading signals to the control module.
According to the actual working conditions, the automatic mode or the manual mode can be adopted in the embodiment;
in the automatic mode:
when the sludge discharge pressure is greater than the set pressure P1, the system judges that a sludge discharge pipeline is blocked, the control module controls the action of a bypass valve push-pull oil cylinder electromagnetic valve, the display screen warns at the same time, when the bypass valve is opened, the proximity switch detects that the bypass valve is opened, the control module controls the oil cylinder to stop acting, the sludge system is switched to a bypass state, a sludge conveying pipeline is directly communicated with the sludge discharge pipeline, the blocked position of the pipeline is washed, when the sludge discharge pressure is reduced to the set pressure P2, the control module controls the action of the bypass valve push-pull oil cylinder electromagnetic valve, when the bypass valve is closed, the proximity switch detects that the bypass valve is closed, the control module controls the oil cylinder to stop acting, the;
when the pressure of the mud water cavity is greater than the set pressure P3, the pressure value P3 can be manually set through a touch screen parameter setting page, the system judges that the mud water cavity is blanked and accumulated, the control module controls the action of an electromagnetic valve of a push-pull oil cylinder of an internal circulation valve, meanwhile, the display screen warns, the control module controls the stop action of the oil cylinder until the opening approach switch of the internal circulation valve detects that the internal circulation valve is opened, the mud water system is switched to the internal circulation state, a mud delivery pipeline is directly communicated with the mud water cavity to flush the mud water cavity, when the pressure of the mud water cavity is reduced to the set pressure P4, the control module controls the action of the electromagnetic valve of a push-pull oil cylinder of a bypass valve until the closing approach switch of the bypass valve detects that the bypass valve is.
In the manual mode:
the system reaches the pressure value and reports to the police, and manual switching send the mud state of arranging, and the accessible is adjusted the converter frequency simultaneously, improves and send mud and arrange the rotational speed of mud motor, less washout time.
Claims (5)
1. A push bench mud control system comprises a control module for controlling a mud feeding motor and a mud discharging motor, a bypass valve (2) and an internal circulating valve (6) which are arranged in the push bench mud system,
the method is characterized in that:
the control module is connected with a first electromagnetic valve and a second electromagnetic valve in a control mode;
the first electromagnetic valve is in control connection with the bypass valve (2), and the second electromagnetic valve is in control connection with the internal circulating valve (6);
the control module is electrically connected with a pressure sensor for detecting the pressure in the pipe jacking machine mud system and a proximity switch for detecting whether the bypass valve (2) and the internal circulating valve (6) are opened or closed in place;
the control module comprises a PLC unit and an extension module, and the PLC unit and the extension module communicate through a DeviceNet protocol;
the PLC unit is connected with a human-computer display interface through a network cable, and the human-computer display interface is used for displaying parameters of the sensor and the on-off state of the electromagnetic valve; the PLC unit and the man-machine display interface are arranged in the bottom surface operation table;
the expansion module is installed in a control cabinet inside the machine head, and the expansion module is electrically connected with the first electromagnetic valve, the second electromagnetic valve, the pressure sensor and the proximity switch.
2. The push bench mud control system of claim 1, wherein: the number of the pressure sensors is four; the first pressure sensor and the second pressure sensor are respectively arranged at the upper end and the lower end of the rear end plate of the muddy water cavity and are respectively used for measuring the pressure of the upper part and the lower part of the muddy water cavity; and the third pressure sensor and the fourth pressure sensor are respectively arranged in the mud inlet pipeline and the mud discharge pipeline and are respectively used for measuring the mud pressure in the mud inlet pipeline and the mud discharge pipeline.
3. The push bench mud control system of claim 1, wherein: the number of the proximity switches is four; the proximity switch I (1) and the proximity switch II (3) are respectively arranged on two sides of the bypass valve (2), and the proximity switch I (1) and the proximity switch II (3) are used for detecting whether the bypass valve (2) is opened and closed in place; and the proximity switch III (5) and the proximity switch IV (7) are respectively arranged at two sides of the inner circulating valve (6), and the proximity switch III (5) and the proximity switch IV (7) are used for judging whether the inner circulating valve (6) is opened or closed in place.
4. The push bench mud control system of claim 1, wherein: the inner circulating valve (6) is connected with an inner circulating valve push-pull oil cylinder (8) used for controlling the opening and closing of the inner circulating valve (6), and the second electromagnetic valve is connected with the inner circulating valve push-pull oil cylinder (8) in a control mode.
5. The push bench mud control system of claim 1, wherein: the bypass valve (2) is connected with a bypass valve push-pull oil cylinder (4) used for controlling the bypass valve (2) to open and close, and the first electromagnetic valve is connected with the bypass valve push-pull oil cylinder (4) in a control mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397286.7A CN111536309B (en) | 2020-05-12 | 2020-05-12 | Pipe jacking machine mud control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010397286.7A CN111536309B (en) | 2020-05-12 | 2020-05-12 | Pipe jacking machine mud control system |
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| Publication Number | Publication Date |
|---|---|
| CN111536309A CN111536309A (en) | 2020-08-14 |
| CN111536309B true CN111536309B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010397286.7A Active CN111536309B (en) | 2020-05-12 | 2020-05-12 | Pipe jacking machine mud control system |
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| CN (1) | CN111536309B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201173334Y (en) * | 2008-01-22 | 2008-12-31 | 上海上水自来水特种工程有限公司 | Automatized grouting system for pipe pushing |
| CN102536259A (en) * | 2010-12-31 | 2012-07-04 | 上海市基础工程有限公司 | Soil-pressure-equalizing pipe-jacking mud-water converting device |
| CN203175568U (en) * | 2013-03-29 | 2013-09-04 | 国家电网公司 | Internal sludge feeding and discharging control mechanism of pipe-jacking heading machine for cable tunnel |
| CN103398214A (en) * | 2013-08-13 | 2013-11-20 | 上海力行工程技术发展有限公司 | Muddy water balance push bench |
| CN206329552U (en) * | 2016-12-29 | 2017-07-14 | 安徽唐兴机械装备有限公司 | A kind of muddy water automatic closing system of push-bench accumulator independent control |
| CN207348870U (en) * | 2017-09-21 | 2018-05-11 | 中交二航局南方工程有限公司 | Intelligent electric-controlled wellblock by-pass collar and jacking construction system |
| CN209040832U (en) * | 2018-10-26 | 2019-06-28 | 扬州斯普森机械制造有限公司 | A kind of push-bench muddy water system |
| CN110541715A (en) * | 2019-10-15 | 2019-12-06 | 徐州徐工基础工程机械有限公司 | Mud control system and push bench |
-
2020
- 2020-05-12 CN CN202010397286.7A patent/CN111536309B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201173334Y (en) * | 2008-01-22 | 2008-12-31 | 上海上水自来水特种工程有限公司 | Automatized grouting system for pipe pushing |
| CN102536259A (en) * | 2010-12-31 | 2012-07-04 | 上海市基础工程有限公司 | Soil-pressure-equalizing pipe-jacking mud-water converting device |
| CN203175568U (en) * | 2013-03-29 | 2013-09-04 | 国家电网公司 | Internal sludge feeding and discharging control mechanism of pipe-jacking heading machine for cable tunnel |
| CN103398214A (en) * | 2013-08-13 | 2013-11-20 | 上海力行工程技术发展有限公司 | Muddy water balance push bench |
| CN206329552U (en) * | 2016-12-29 | 2017-07-14 | 安徽唐兴机械装备有限公司 | A kind of muddy water automatic closing system of push-bench accumulator independent control |
| CN207348870U (en) * | 2017-09-21 | 2018-05-11 | 中交二航局南方工程有限公司 | Intelligent electric-controlled wellblock by-pass collar and jacking construction system |
| CN209040832U (en) * | 2018-10-26 | 2019-06-28 | 扬州斯普森机械制造有限公司 | A kind of push-bench muddy water system |
| CN110541715A (en) * | 2019-10-15 | 2019-12-06 | 徐州徐工基础工程机械有限公司 | Mud control system and push bench |
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| CN111536309A (en) | 2020-08-14 |
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