CN212251691U

CN212251691U - Device for temporarily closing a pipe to be extended of a tunnel boring machine

Info

Publication number: CN212251691U
Application number: CN202020057502.9U
Authority: CN
Inventors: W.伯格
Original assignee: Herrenknecht AG
Current assignee: Herrenknecht AG
Priority date: 2019-01-24
Filing date: 2020-01-10
Publication date: 2020-12-29
Anticipated expiration: 2030-01-10
Also published as: DE202019100412U1

Abstract

The utility model relates to a device for temporarily closing the pipeline (403) of tunnel boring machine that treat the extension, the device has can be in along axial displacement's sealing unit (103, 104) in pipeline (403), sealing unit is equipped with at least one sealing element (106), through sealing element can close pipeline (403) at least liquid seal ground, according to the utility model discloses the regulation, there is can motor drive's drive unit (112, 113), and sealing unit (103, 104) can pass through drive unit along axial displacement. The presence of a motor-drivable drive unit makes it possible, when the drive unit is coupled to the sealing unit, to move the sealing unit into a position in which the line is to be closed, independently of the liquid volume which is usually very complex to control in the flow direction.

Description

Device for temporarily closing a pipe to be extended of a tunnel boring machine

Technical Field

The invention relates to a device for temporarily closing a pipeline of a tunnel boring machine to be extended, having a sealing unit which can be moved in the pipeline in the axial direction, the sealing unit being equipped with at least one sealing element by means of which the pipeline can be closed at least liquid-tightly.

Background

Such devices are known from practice and have a sealing unit which can be moved in the pipeline in the axial direction. The sealing unit is equipped with at least one sealing body, by means of which the line can be closed at least liquid-tightly. The movement of the sealing unit is achieved by controlling the flow direction of the liquid volume present in the line accommodating the sealing unit, carrying the sealing unit along. The control of the liquid volume is relatively complicated by the opening and closing of the valve.

SUMMERY OF THE UTILITY MODEL

The invention is based on the object of providing a device of the type mentioned at the outset, which is distinguished by a flexible and precise mobility of the sealing unit, even for empty pipelines, if necessary.

The object is achieved by a device according to the invention of the type mentioned at the outset, which has a sealing unit that can be moved in the pipeline in the axial direction, which sealing unit is equipped with at least one sealing element, by means of which the pipeline can be closed at least liquid-tightly, according to the invention it is provided that a drive unit that can be driven by a motor is present, or that each sealing unit can be moved in the axial direction by means of the drive unit.

The presence of a motor-drivable drive unit makes it possible, when the drive unit is coupled to the sealing unit, to move the sealing unit into a position in which the line is to be closed, independently of the liquid volume which is usually very complex to control in the flow direction.

Drawings

Further suitable embodiments and advantages result from the following description of embodiments of the invention with reference to the drawings.

In the drawings:

fig. 1 shows an embodiment of the device according to the invention in a perspective view, with two sealing units and two drive units coupled to a supply line, and with a pressure accumulator.

Fig. 2 shows a perspective view of a further exemplary embodiment of the device according to the invention, with two sealing units and two drive units, which are equipped with an accumulator and a coupling point, as well as a pressure accumulator and an accumulator.

Fig. 3 shows the example according to fig. 1 in a first embodiment in a side view, in a parking space provided in a conduit cradle,

figure 4 shows in a side view the pipe bracket according to figure 3 together with the example according to figure 1 according to the first embodiment arranged in a section of a pipeline to be extended,

figure 5 shows in a side view the pipe carrier according to figure 3 and the end section of the pipeline to be extended at a distance from one another,

fig. 6 shows, in a side view, an arrangement in which the pipe carrier and the end section of the pipeline to be extended are spaced apart from one another, with the supply line disconnected,

fig. 7 shows the pipe carrier and the end section of the pipe according to fig. 6 in a side view, with a new pipe section,

fig. 8 shows the arrangement according to fig. 7 in a side view, wherein the pipeline is extended by a new pipeline section,

fig. 9 shows a pipe carrier in a side view, partly in section, in which a second embodiment with a disengageable drive unit is used according to an embodiment of the device according to the invention,

fig. 10 shows the arrangement according to fig. 9 in a side view, partially in section, with a new line section to be used for lengthening the line,

fig. 11 shows, in a partially cut-away side view, the arrangement according to fig. 10, with a new pipeline section currently installed on the pipeline,

fig. 12 shows, in a partially cut-away side view, a conduit carrier in the region of a parking space in which the exemplary embodiment of the device according to the invention, which is illustrated in fig. 2, is arranged, and

fig. 13 shows a side view, partially in section, of an arrangement of a pipe support and a pipe to be extended, in the end section of which the exemplary embodiment of the device according to the invention is illustrated in fig. 2.

Detailed Description

Fig. 1 shows in a perspective view an exemplary embodiment of a device according to the invention in the form of a semi-autonomous pipe cleaning apparatus 100, which has two

sealing units

103, 104. Each

sealing unit

103, 104 has a sealing element 106 embodied in the form of a ring, for example in the form of a sealing ring which can be expanded in the circumferential direction when pressure is applied.

On both sides of each sealing element 106, the pipe cleaning apparatus 100 has a double-layered cleaning lip 109 of disk-like design, which is made of a relatively flexurally stiff material. The cleaning lip 109 protrudes radially beyond the non-pressurized sealing element 106 and serves to push away material present in the line not shown in fig. 1.

The pipe-cleaning appliance 100 according to fig. 1 is also equipped with two

drive units

112, 113 which are of approximately cuboid configuration in the outer contour and which have, for example, rollers 115 which can be driven by an electric motor in the corner regions thereof.

In the exemplary embodiment according to fig. 1, the first drive unit 112 located inside is connected directly to the first sealing unit 103 located outside and via a first hinge 118, which is designed, for example, as a bellows compensator, to the second sealing unit 104 located inside. A second hinge 119, which is likewise designed as a bellows compensator, for example, is arranged on the other side of the second sealing unit 104, and a second drive unit 113 located outside is coupled to the other end of said second hinge.

The second drive unit 113 is connected on its side facing away from the second sealing unit 104 to a supply line 121, which is attached to the second drive unit 113 in a releasable manner in the first embodiment or in the second embodiment in a fixed manner in the second embodiment by means of a coupling point 124 during normal operation, wherein the second drive unit 113, which is located outside in the view according to fig. 1, is connected in a fixed manner in the first embodiment to the second articulation 119 and in the second embodiment is connected in a releasable manner to the second articulation 119. The pipe line cleaner 100 can be supplied with electrical energy, electrical signals and compressed air via the supply line 121.

Furthermore, the pipe pig 100 is equipped with an accumulator 127, by means of which compressed air can be stored, so that the sealing element 106 can be continuously reliably pressurized when the supply line 121 or the second drive unit 113 is removed and the pipe pig 100 is designed to be semi-autonomous.

Fig. 2 shows a further exemplary embodiment of the device according to the invention in a perspective view, wherein the components that correspond to one another in the exemplary embodiment illustrated in fig. 1 and in the exemplary embodiment illustrated in fig. 2 are assigned the same reference numerals and are not explained in detail again. In the exemplary embodiment of the pipe-line-cleaning appliance 200 according to fig. 2, which is designed as a complete self-contained appliance, there is an accumulator 203 for storing electrical energy, while the coupling point 124 is provided for connection to a mating point, not shown in fig. 2, which is provided in the parking space. When the coupling point 124 is connected to the mating point, the pressure accumulator 127 and the battery 203 are supplied with compressed air or electrical energy, so that the pipe-line-cleaning appliance 200 according to fig. 2 can always be operated completely autonomously within a predetermined operating time, independently of the supply line 121 as in the exemplary embodiment according to fig. 1.

Fig. 3 shows an example of the device according to the invention according to fig. 1 in a partially cut-away side view, which in a first embodiment is designed as a semi-autonomous pipe cleaner 100, which is arranged in a parking space 306, which is formed in a pipe carrier (Rohrlaufwagen)303 of a tunnel boring machine, which is not shown in fig. 3. The parking space 306 formed in the end connection tube 309 of the carrier tube 310 serves to accommodate the semi-autonomous pipe cleaner 100 during the extraction operation of the tunnel boring machine and is formed by the region of the end connection tube 309 which is enlarged in cross section. The pipe rack 303 has a total of two rack pipes 310, each of which has an end connection pipe 309, each of which has a parking space for receiving the pipe cleaning apparatus 100. At the end face of each parking space 306, a line feed 312 is provided, through which the supply line 121 can be fed in an outward direction.

Fig. 4 shows, in a side view in partial section, the pipe carrier 303 with the parking space 306 shown in fig. 3 and a pipeline 403 to be lengthened, which is arranged on the side of the carrier tube 310 opposite the parking space 306. In an end section 406, shown partially in section, of the line 403, the pipe cleaner 100 is arranged. The pipe clearing 100 is moved by means of the

drive units

112, 113 from the parking space 306 into the end section 406 via a supply line 121, which is partially only shown in sections in fig. 4 and the following figures.

Fig. 5 shows an arrangement in a side view, in which the pipe carrier 303 and the end section 406 of the pipe 403 accommodating the pipe pig 100 are spaced apart from one another by retracting the pipe carrier 303 in order to install a new pipe section which is not yet shown in fig. 5. As can be seen from the illustration according to fig. 5, the supply line 121 still extends over the free space between the end section 406 of the line 403 and the pipe bracket 303. In this arrangement, the activated

sealing units

103, 104 of the pipe clearing 100 seal the line 403 at least liquid-tightly, preferably also at least to some extent gas-tightly, in the end section 406.

Fig. 6 shows in a side view an arrangement of the pipe carrier 303 and an end section 406 of the pipe 403 to be extended, in which arrangement the supply line 121 is currently pulled off the pipe cleaning appliance 100 and introduced into the pipe carrier 303.

Fig. 7 shows a side view of a configuration of the pipe carrier 303 and the end section 406 of the pipe 403, which now has a new pipe section 707, by means of which the pipe 403 can be extended. In the arrangement according to fig. 7, the pipe pig 100 is reconnected to the supply line 121, so that after connecting a new pipe section 707 to the pipe 403 and the pipe carrier 303, the pipe pig 100 can be released again by releasing the pressure from the sealing element 106 and thus from the deactivated

sealing units

103, 104 and can be moved again by means of the

drive units

112, 113.

Fig. 8 shows the pipeline 403 extended with a new pipeline section 707 and the pipe clearing apparatus 100 located in the parking space 306 in a side view on the basis of the arrangement according to fig. 7. After the parking space 306 is isolated by the rams 803, a new tunneling cycle is started until a new pipe section 707 is installed again.

Fig. 9 shows, in a partially cut-away side view, the pipe rack 303 together with the pipe cleaning apparatus 100 according to fig. 1 in a second embodiment, having a detachable second drive unit 113, wherein, in the arrangement according to fig. 9, the part of the pipe cleaning apparatus 100 having the two

sealing units

103, 104 and the first drive unit 112 arranged between the

sealing units

103, 104 is arranged in an end section 406 of the pipe 403 to be extended, while the detached second drive unit, which is continuously connected to the supply line 121, temporarily rests on the pipe rack 303. The

sealing units

103, 104 here also seal the end section 406 of the pipeline 403 to be extended as completely fluid-tight as possible.

Fig. 10 shows the arrangement according to fig. 9 in a partially cut-away side view, with a new line section 707 to be used for the extension line 403,

fig. 11 shows, in a partially cut-away side view, the arrangement according to fig. 10, in which a new pipeline section 707, which is currently installed on the pipeline 403, and the recoupled second drive unit 113, which was previously arranged in the pipeline carrier 303, are present. After the coupling of the second drive unit 113, the pipe clearing device 100 can be retracted back into the parking space 306, which is not shown in fig. 11, in order to start a new driving cycle.

Fig. 12 shows, in a partially cut-away side view, a pipe rack 303 in the region of a parking space 306, in which a completely self-contained pipe clearing device 200 according to fig. 2 is arranged as an embodiment of the device according to the invention. In this arrangement, the coupling site 124 is connected with a mating site 1203 arranged in the parking space 306. In this coupling configuration, the completely autonomous line cleaner 200 is supplied with electrical energy and compressed air, so that it can be operated independently of the input electrical energy and compressed air in the course of the operating time periods typical for operation.

Fig. 13 shows a partially cut side view of the arrangement of the pipe carrier 303 and the pipe 403 to be lengthened, with the completely self-contained pipe cleaning apparatus 200 in the end section 406 of the pipe 403 to be lengthened, wherein the end section 406 of the pipe 403 to be lengthened is sealed in a fluid-tight manner by means of the completely self-contained pipe cleaning apparatus 200.

In the illustration according to fig. 13, the new pipeline section 707 is in the extended position, so that after the connection of the new pipeline section 707 to the end section of the pipeline 403 to be extended and to the pipeline carrier 303, the fully autonomous pipeline pig 200 can be re-introduced into the parking space 306 for a subsequent driving cycle after deactivation of the sealing

units

103, 104.

In a suitable embodiment according to the invention, which is not shown, it is provided that the

pipe cleaning apparatus

100, 200 is equipped with a relatively strong magnet for forming the position detection unit, and that at least one magnetic field sensor, preferably at least two magnetic field sensors spaced apart from one another for very precise differential measurement, is arranged in the end section 406 of the pipe 403 to be extended. The position of the

pipe cleaning apparatus

100, 200 and thus the position of the or each sealing

unit

103, 104 in the end section 406 can be detected in proximity to and/or when passing through the magnetic field sensor or sensors, in order to achieve a reliable sealing of the end section 406.

The method for extending the line 403 by the device according to the invention, in particular by the semi-autonomous line cleaner 100 in the first or second embodiment or by the fully autonomous line cleaner 200, is as follows:

-placing the

pipe pig

100, 200 in the parking space 306 at the beginning of the tunnelling cycle until the end of the tunnelling cycle,

running the pipe-

line clearing apparatus

100, 200 into the end section 406 of the pipeline 403 to be extended,

activating at least one

sealing unit

103, 104 for sealing the end section 406, wherein, in case of the semi-autonomous pipe pig 100 in the first embodiment, the supply line 121 is removed from the part of the semi-autonomous pipe pig 100 having the or each activated sealing

unit

103, 104, or, in case of the semi-autonomous pipe pig 100 in the second embodiment, the second drive unit 113 is removed from said part together with the supply line 121,

lengthening the pipeline 403 by adding a new pipeline section 707,

bringing the

pipeline pig

100, 200 out of the end section, wherein the supply line 121 is coupled to the part of the semi-autonomous pipeline pig 100 with the or each activated sealing

unit

103, 104 in the case of the semi-autonomous pipeline pig 100 in the first embodiment, or the second drive unit 113 is coupled to the part together with the supply line 121 in the case of the semi-autonomous pipeline pig 100 in the second embodiment,

arranging the

pipe pig

100, 200 in the parking space 306 for starting a further tunnelling cycle.

This measure results in a very efficient lengthening of the line 403 in the tunnel boring machine due to the semi-or complete autonomy of the

pipe cleaners

100, 200 used in each case.

Claims

1. A device for temporarily closing a pipeline (403) of a tunnel boring machine to be extended, having a sealing unit (103, 104) which is movable in the axial direction in the pipeline (403), which sealing unit is equipped with at least one sealing element (106) by means of which the pipeline (403) can be closed at least liquid-tightly, characterized in that a motor-drivable drive unit (112, 113) is present, by means of which the sealing unit (103, 104) can be moved in the axial direction.

2. The device according to claim 1, characterized in that the sealing unit (103, 104) and the drive unit (112, 113) are hingedly connected to each other.

3. Device according to claim 1 or 2, characterized in that the drive unit is releasably connectable with a supply line (121).

4. Device according to claim 1 or 2, characterized in that the drive unit is fixedly connected with the supply line (121) and releasably connected with the sealing unit.

5. Device according to claim 1 or 2, characterized in that the drive unit (112, 113) can be releasably connected with the fitting location (1203) of the pipe carrier (303) by means of at least one coupling location (124).

6. A device according to claim 1 or 2, characterized in that two sealing units (103, 104) are provided, which are arranged on both sides of the first drive unit (112), and that there is a second drive unit (113) arranged on the side of the sealing units remote from the first drive unit (112).

7. An arrangement according to claim 1 or 2, characterized in that there is an accumulator (127) for storing compressed air.

8. An arrangement according to claim 5, characterised in that there is an accumulator (127) for storing compressed air, wherein there is an accumulator (203) for storing electric energy.

9. A device according to claim 1 or 2, characterized in that there is a position identification unit by means of which the position of at least one sealing unit (103, 104) can be detected.