CN216305915U - Pipeline emergency switching device of subway shield grouting system - Google Patents
Pipeline emergency switching device of subway shield grouting system Download PDFInfo
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- CN216305915U CN216305915U CN202121429198.7U CN202121429198U CN216305915U CN 216305915 U CN216305915 U CN 216305915U CN 202121429198 U CN202121429198 U CN 202121429198U CN 216305915 U CN216305915 U CN 216305915U
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Abstract
A subway shield grouting system pipeline emergency switching device comprises a grouting pipe group, a switching plug group, a grouting pipe outlet and a box body; the emergency switching device is connected with the grouting pump set through the ball valve group. When a single grouting pump works in the grouting pump set, the state of the switching plug is changed, the flow path of the grout in the grouting pipe is changed, so that the grout can be sprayed out from the outlets of the two grouting pipes when the single grouting pump works, and the working stability and continuity of the shield tunneling machine are improved.
Description
Technical Field
The application relates to a subway shield grouting system pipeline facility.
Background
The shield constructs the machine and generally is equipped with 2 grouting pumps, and every grouting pump has 2 discharge gates, has 4 discharge gates to correspond 4 synchronous slip casting mouths of shield host computer shield tail department respectively like this, and 4 slip casting mouths generally distribute in the upper left and upper right, lower left and lower right of the shield body. In the construction process, due to the abrasion and corrosion of the slurry medium to the grouting pump, the situations of fault removal, inspection and replacement of wearing parts and the like inevitably occur after the grouting pump works for a period of time. When one grouting pump of the shield machine fails, the repair is not practical, and for this reason, it is a reasonable choice to maintain the failed grouting pump to continue to support the normal propulsion of the shield machine.
In the past, in order to deal with the situation, a shield machine needs to be stopped to advance, a grouting pump needs to be stopped to work, a grouting pipe for connecting a grouting pump with a grouting opening needs to be disassembled, then a special one-to-two grouting pipe is connected into the grouting pump and the grouting opening, and a large amount of time needs to be spent. The shield machine construction is often in a special working condition, for example, when an important building is above, the shield machine passes through an upper tunnel at a short distance or passes through a river, just as the shield machine cannot be stopped for a long time.
The construction method is designed for solving the practical construction difficulty and trouble.
SUMMERY OF THE UTILITY MODEL
This application aim at, adaptation shield constructs quick-witted synchronous slip casting system, discloses a certain trouble of effective urgent reply double grouting pump, maintains the brand-new device that the shield constructs quick-witted normal propulsion.
The technical scheme provided by the application is as follows:
a subway shield grouting system pipeline emergency switching device 3 is characterized by comprising a grouting pipe group, a switching plug group, a grouting pipe outlet and a box body; the emergency switching device 3 is connected with the grouting pump group 1 through the ball valve group 2; during construction, the outlet of each grouting pipe is guaranteed to be sprayed out, and the emergency switching device 3 can realize the function of emergency slurry supply of a single grouting pump in the grouting pump set 1. The specific scheme is as follows:
the grouting pump set 1 comprises an upper grouting pump 11 and a lower grouting pump;
the grouting pipe group 321 comprises an upper grouting pipe 3211 and a lower grouting pipe 3212; the switching plug group 322 comprises an upper switching plug 3221 and a lower switching plug 3222; the outlet 323 of the grout pipe includes an upper outlet 3231 and a lower outlet 3232. The grouting pipe group 321 and the switching plug group 322 are installed in the case 324, and the grouting pipe outlet 323 is disposed at the upper left of the case 324.
The upper grouting pipe 3211 and the lower grouting pipe 3212 are connected with the upper grouting pump 11 and the lower grouting pump respectively through different ball valves in the ball valve group 2.
The upper switching plug 3221 is installed between the upper grouting pipe 3211 and a pipeline communicated with the lower outlet 3232; and a lower switching plug 3222 is installed between the communication ducts of the upper and lower grouting pipes 3211 and 3212.
When the lower grouting pump stops working, the plug of the upper switching plug 3221 is taken out, the upper grouting pipe 3211 is communicated with the lower outlet 3232 through a pipeline, and the lower outlet 3232 also sprays slurry; when the upper grouting pump 11 stops working, the plug of the lower switching plug 3222 is taken out, the lower grouting pipe 3212 is communicated with the upper outlet 3231 through a pipeline, and the slurry is sprayed out of the upper outlet 3231; therefore, when the single grouting pump works, the outlets of the two grouting pipes are guaranteed to be sprayed with grout.
Compared with the prior art, the utility model has the following beneficial technical effects:
according to the structure of the emergency switching device, when one grouting pump in the grouting pump set fails, and a single grouting pump works, the grout is sprayed out of all the outlets of the grouting pipes, so that the working stability and continuity of the shield machine are improved.
Drawings
FIG. 1 is a schematic diagram of an emergency switching device for subway tunnel construction connected to a shield tunneling machine synchronous grouting system
FIG. 2 is emergency switching device perspective view for subway tunnel construction
FIG. 3 is schematic diagram of a longitudinal section of an emergency switching device for subway tunnel construction
Digital tag annotation:
the grouting pump group 1, the upper grouting pump 11, the ball valve group 2, the upper left ball valve 21, the lower left ball valve 23, the upper right ball valve 22, the lower right ball valve 24, the emergency switching device 3, the left emergency switching device 31, the right emergency switching device 32, the grouting pipe group 321, the upper grouting pipe 3211, the lower grouting pipe 3212, the switching plug group 322, the upper switching plug 3221, the lower switching plug 3222, the grouting pipe outlet 323, the upper outlet 3231, the lower outlet 3232 and the box 324.
Detailed Description
A subway shield grouting system pipeline emergency switching device 3 comprises a grouting pipe group, a switching plug group, a grouting pipe outlet and a box body; the emergency switching device 3 is connected with the grouting pump group 1 through the ball valve group 2; during construction, the outlet of each grouting pipe is guaranteed to be sprayed out, and the emergency switching device 3 can realize the function of emergency slurry supply of a single grouting pump in the grouting pump set 1. The specific scheme is as follows:
as shown in fig. 1, the grouting pump group 1 comprises an upper grouting pump 11 and a lower grouting pump, wherein the upper grouting pump 11 is connected with an upper left ball valve 21 and an upper right ball valve 22 in a ball valve group 2; the lower slurry pump is connected with a left lower ball valve 23 and a right lower ball valve 24 in the ball valve group 2; in figure 1, the schematic diagram of the upper grouting pump is given, the schematic diagram of the lower grouting pump is not given, the functions and the structures of the lower grouting pump and the upper grouting pump in the patent are the same, and the lower grouting pump can refer to the structure of the upper grouting pump.
As shown in fig. 2, the emergency switching device 3 includes a left emergency switching device 31 and a right emergency switching device 32; a single grouting pump is connected to the left emergency switch 31 and the right emergency switch 32 via the ball valve group 2. The left emergency switching device 31 is identical in structure to the right emergency switching device 32, and therefore, the internal structure and function of the emergency switching device 3 will be described in detail below with the right emergency switching device 32 as a representative.
The right emergency switching device 32 comprises a grouting pipe group 321, a switching plug group 322, a grouting pipe outlet 323 and a box body 324. The switching plug group 322 comprises an upper switching plug 3221 and a lower switching plug 3222; the outlet 323 of the grout pipe includes an upper outlet 3231 and a lower outlet 3232. The grouting pipe group 321 and the switching plug group 322 are installed in the case 324, and the grouting pipe outlet 323 is disposed at the upper left of the case 324.
As shown in fig. 3, the grouting pipe group 321 includes an upper grouting pipe 3211 and a lower grouting pipe 3212; the upper grouting pipe 3211 is connected to the upper grouting pump 11 through an upper right ball valve 22. The upper grouting pipe 3211 is of a bent pipe structure, and is connected with a lower grouting pump through a right lower ball valve 24 corresponding to the lower grouting pipe 3212.
The upper switching plug 3221 is installed between the upper grouting pipe 3211 and the lower outlet 3232; the lower switching plug 3222 is arranged between the upper grouting pipe 3211 and the lower grouting pipe 3212; during normal construction, a plug is plugged into the switching plug group 322 to prevent slurry from flowing through the switching plug group; when a single grouting pump in the grouting pump group 1 works, the corresponding plug in the switching plug group 322 is taken out, and the sealing plug is screwed down, so that the grout can flow through the switching plug.
The outlets of the grouting pipes corresponding to the upper grouting pipe 3211 are an upper outlet 3231 and a lower outlet 3232; during normal construction, slurry of the upper slurry pump 11 horizontally flows into the upper slurry injection pipe 3211 through the upper right ball valve 22, and is ejected from the upper outlet 3231 after the direction is changed through the elbow pipe; the slurry of the lower slurry pump horizontally flows into the upper slurry injection pipe 3212 through the right lower ball valve 24, and is ejected from the lower outlet 3232 after the direction is changed through the elbow pipe, so that the slurry is ejected from each slurry injection pipe outlet. When the lower grouting pump stops working, the plug of the upper switching plug 3221 is taken out, the sealing plug is screwed down, and the pipeline between the upper grouting pipe 3211 and the lower outlet 3232 is communicated, so that slurry is sprayed out of the lower outlet 3232; similarly, when the upper grouting pump 11 stops working, the plug of the lower switching plug 3222 is taken out, the sealing plug is screwed, and the lower grouting pipe 3212 is communicated with the upper outlet 3231 through a pipeline, so that the upper outlet 3231 also sprays out slurry. The emergency switching device 3 of the utility model has the structure that when a single grouting pump works, all grouting pipe outlets are sprayed with grout.
Claims (1)
1. The utility model provides an emergent auto-change over device of subway shield slip casting system pipeline (3), its characterized in that: comprises a grouting pipe group (321), a switching plug group (322), a grouting pipe outlet (323) and a box body (324); the emergency switching device (3) is connected with the grouting pump group (1) through the ball valve group (2);
the grouting pump set (1) comprises an upper grouting pump (11) and a lower grouting pump;
the grouting pipe group (321) comprises an upper grouting pipe (3211) and a lower grouting pipe (3212); the switching plug group (322) comprises an upper switching plug (3221) and a lower switching plug (3222); the outlet (323) of the grouting pipe comprises an upper outlet (3231) and a lower outlet (3232); the grouting pipe group (321) and the switching plug group (322) are both arranged in the box body (324), and the outlet (323) of the grouting pipe is arranged at the upper left part of the box body (324);
the upper grouting pipe (3211) and the lower grouting pipe (3212) are respectively connected with the upper grouting pump (11) and the lower grouting pump through different ball valves in the ball valve group (2);
the upper switching plug (3221) is arranged between the upper grouting pipe (3211) and a communicating pipeline of the lower outlet (3232); and the lower switching plug (3222) is arranged between the communication pipelines of the upper grouting pipe (3211) and the lower grouting pipe (3212).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121429198.7U CN216305915U (en) | 2021-06-25 | 2021-06-25 | Pipeline emergency switching device of subway shield grouting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121429198.7U CN216305915U (en) | 2021-06-25 | 2021-06-25 | Pipeline emergency switching device of subway shield grouting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216305915U true CN216305915U (en) | 2022-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121429198.7U Active CN216305915U (en) | 2021-06-25 | 2021-06-25 | Pipeline emergency switching device of subway shield grouting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216305915U (en) |
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2021
- 2021-06-25 CN CN202121429198.7U patent/CN216305915U/en active Active
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