CN216342122U

CN216342122U - High-pressure water flushing system for deep well tunneling

Info

Publication number: CN216342122U
Application number: CN202122708592.0U
Authority: CN
Inventors: 苏善珍; 谢正春; 王丽; 李庆龙
Original assignee: Jianhu Fuli Intelligent Technology Co ltd
Current assignee: Jianhu Fuli Intelligent Technology Co ltd
Priority date: 2021-11-05
Filing date: 2021-11-05
Publication date: 2022-04-19
Anticipated expiration: 2031-11-05

Abstract

The utility model relates to a high-pressure water washing system for deep well tunneling, which comprises a water storage tank, a water pump and a tunneling machine, wherein an outlet of the water storage tank is connected with an inlet of the water pump through a first connecting pipe, an outlet of the water pump is connected with an inlet of a water path of the tunneling machine through a second connecting pipe, and the outlet of the water path of the tunneling machine is connected with a spray head device through a third connecting pipe; the second connecting pipe is used for being lifted or lowered down to be matched with the lifting of the tunneling machine. The utility model can prevent the milling and excavating cutter of the development machine from firming mud cakes when encountering clay strata, thereby improving the construction efficiency. The lifting unit can meet the guiding, transferring and lifting requirements of various pipelines at the same time, the pipelines are prevented from being bent and mixed, and the pipelines are ensured to be smooth.

Description

High-pressure water flushing system for deep well tunneling

Technical Field

The utility model relates to the technical field of deep well tunneling construction equipment, in particular to a deep well tunneling high-pressure water flushing system.

Background

In the process of reforming the underground space, a large number of open caisson wells are required to be constructed as the underground structure. Such as the origination and reception wells of an underground tunnel boring machine, tunnel ventilation shafts, municipal drainage system shafts, underground stereo garage and storage shafts, mining shafts, bridge construction shafts, missile launching shafts, etc.

The deep well tunneling machine serving as important open caisson construction equipment has the technical advantages of safety, high efficiency, small occupied space, wide geological adaptability, small influence on the surrounding environment and the like, and is particularly suitable for being used in large-diameter and large-depth vertical shaft engineering. The milling and digging cutter of the deep well tunneling machine is easy to compact mud cakes when meeting clay strata, directly influences the tunneling efficiency of the whole equipment and can seriously cause the failure of the milling and digging cutter.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a high-pressure water flushing system for deep well tunneling, which aims to solve the technical problem that the construction progress is influenced by cutter failure caused by cutter failure due to the fact that a milling and excavating cutter is easy to harden mud cakes when encountering clay strata.

The technical scheme adopted by the utility model is as follows:

a deep well tunneling high-pressure water washing system comprises a water storage tank, a water pump and a tunneling machine, wherein an outlet of the water storage tank is connected with an inlet of the water pump through a first connecting pipe, an outlet of the water pump is connected with a waterway inlet of the tunneling machine through a second connecting pipe, and a waterway outlet of the tunneling machine is connected with a nozzle device through a third connecting pipe; the second connecting pipe is used for being lifted or lowered down to be matched with the lifting of the tunneling machine.

The further technical scheme is as follows:

the second connecting pipe comprises a plurality of sections of unit pipes.

The structure of the lifting unit comprises a support frame, wherein the top of the support frame is arc-shaped, transmission chains are arranged on two sides of the support frame respectively, a plurality of connecting plates are arranged between the transmission chains along the conveying direction, one section of unit pipe is arranged between two adjacent connecting plates, and the unit pipes are adjacent to each other and are connected in sequence through the connecting plates to form a second connecting pipe.

And a plurality of fixed pulleys are respectively arranged along the two sides of the supporting frame and provide support and guide for the transmission chain.

And a driving fluted disc is arranged on the supporting frame and is in transmission fit with the transmission chain through gear teeth.

And a plurality of mounting holes are formed in the connecting plate.

The structure of the spray head device comprises a hard pipe and a high-pressure spray head, one end of the hard pipe is connected with the third connecting pipe, the other end of the hard pipe is connected with the inlet of the high-pressure spray head, the high-pressure spray head is arranged on the lower side of a milling cutter of the heading machine, and a plurality of high-pressure spray nozzles which are uniformly distributed along the axial direction of the milling cutter are arranged at the outlet end of the high-pressure spray head.

And a filtering device is arranged at the inlet of the water pump, and a pressure regulating valve and a pressure gauge are arranged at the outlet of the water pump.

And a rotary joint is arranged at the water path inlet of the heading machine and is connected with the second connecting pipe.

The utility model has the following beneficial effects:

the utility model can prevent the milling and excavating cutter of the development machine from firming mud cakes when encountering clay strata, thereby improving the construction efficiency.

The second connecting pipe is formed by splicing a plurality of sections of unit pipes, is convenient to disassemble and assemble, has the function of moving along the arc-shaped path of the support frame along with the transmission chain, achieves the purposes of lowering and lifting the pipeline, avoids the pipeline from being bent in the lifting process, ensures the smoothness of the pipeline, and further ensures the construction progress.

The lifting unit can meet the guiding, lowering and lifting requirements of various pipelines at the same time, and avoids the mixing of the pipelines.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic structural diagram of the lifting unit of the present invention.

Fig. 3 is a view from direction a of fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Fig. 5 is a schematic view of the connection structure of the drive chain and the connecting plate of the present invention.

FIG. 6 is a schematic diagram of the relative positions of the high pressure nozzle and the milling cutter according to the present invention.

In the figure: 1. a water storage tank; 2. a first connecting pipe; 3. a filtration device; 4. a water pump; 5. a pressure regulating valve; 6. a pressure gauge; 7. a second connecting pipe; 8. a lifting unit; 9. a rotary joint; 10. a heading machine; 11. a third connecting pipe; 12. a hard tube; 13. a high pressure spray head; 14. milling and digging a cutter; 81. a support frame; 82. a drive chain; 83. a connecting plate; 84. a fixed pulley; 85. a driving fluted disc; 131. a high pressure nozzle; 851. and (4) gear teeth.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.

As shown in fig. 1, the high-pressure water flushing system for deep well excavation of the embodiment includes a water storage tank 1, a water pump 4 and a heading machine 10, wherein an outlet of the water storage tank 1 is connected with an inlet of the water pump 4 through a first connecting pipe 2, an outlet of the water pump 4 is connected with a waterway inlet of the heading machine 10 through a second connecting pipe 7, and a waterway outlet of the heading machine 10 is connected with a nozzle device through a third connecting pipe 11; and the lifting unit 8 is further included, and the lifting unit 8 is used for lifting or lowering the second connecting pipe 7 to match with the lifting of the excavator 10.

The second connecting pipe 7 comprises a plurality of sections of unit pipes.

As shown in fig. 2 and 3, the lifting unit 8 includes a support frame 81 with an arc top, transmission chains 82 are respectively arranged along two sides of the support frame 81, a plurality of connecting plates 83 are arranged between the transmission chains 82 along the conveying direction, a section of unit pipe is arranged between two adjacent connecting plates 83, and the adjacent unit pipes are sequentially connected through the connecting plates 83 to form a second connecting pipe 7.

As shown in fig. 4, a plurality of fixed pulleys 84 are respectively disposed along both sides of the supporting frame 81, and the fixed pulleys 84 provide support and guide for the driving chain 82.

As shown in fig. 2, the supporting frame 81 is provided with a driving fluted disc 85, which is in driving fit with the driving chain 82 through teeth 851. Specifically, the driving toothed disc 85 can be driven by a hydraulic motor.

Specifically, the support frame 81 is installed on the ground, the second connecting pipe 7 is formed by connecting multiple sections of unit pipes, and the end portions of the unit pipes penetrate through the corresponding connecting plates 83 to be fixedly connected with the connecting plates 83 and communicated with the adjacent unit pipes. According to the depth increase of the deep well and the position of the tunneling machine 10, the lifting unit 8 can control the second connecting pipe 7 to be lowered and lifted so as to adapt to the excavation work of the deep well tunneling machine. Wherein, drive chain 82 is driven by drive fluted disc 85, slides along the fixed pulley 84 on the support frame 81, and drive chain 82 passes through connecting plate 83 and drives second 7 of connecting pipe and remove to realize that second 7 of connecting pipe is transferred and is promoted along the arc route of support frame 81, ensure that the pipeline of second 7 of connecting pipe is unobstructed in the removal process.

As shown in fig. 5, the connecting plate 83 is provided with a plurality of mounting holes for passing through and fixedly connecting with corresponding pipelines. The unit pipes on both sides of each connecting plate 83 are butted to mounting holes of the connecting plates 83, and are connected after being fixedly connected by connecting members such as flanges.

Specifically, the mounting holes include a small-diameter hole 831 and a large-diameter hole 832, and the small-diameter hole 831 is used for mounting the second connecting pipe 7 for conveying cleaning water and other system pipelines on the heading machine 10. The large diameter bore 832 is used to pass through and install a mud tube for the debris chipped off by the roadheader equipment when operating underwater to be carried to the surface by mud pumps. Meanwhile, the slurry after high-pressure cleaning can be conveyed to the ground.

Therefore, the lifting unit 8 can control the descending and the ascending of the second connecting pipe 7 and the descending and the ascending of other auxiliary pipelines.

The structure of the spray head device comprises a hard pipe 12 and a high-pressure spray head 13, wherein one end of the hard pipe 12 is connected with a third connecting pipe 11, the other end of the hard pipe is connected with an inlet of the high-pressure spray head 13, the high-pressure spray head 13 is arranged on the lower side of a milling and digging cutter 14 of the tunneling machine 10, and as shown in fig. 6, a plurality of high-pressure spray nozzles 131 which are uniformly distributed along the axial direction of the milling and digging cutter are arranged at the outlet end of the high-pressure spray head 13.

Specifically, the third connecting pipe 11 has a certain spare length and is adapted to the telescopic function of the milling head of the deep well boring machine 10.

The high pressure nozzle 13 comprises a plurality of high pressure nozzles 131, the number and distribution of the nozzles are determined according to the size of the milling cutter 14, and the high pressure nozzles 131 directly wash the milling cutter 14. The mud cake with the solid milling and digging cutter 14 of the deep well tunneling machine can be prevented from being washed away in time, the mud cake is prevented from being easily solid when the milling and digging cutter 14 meets a clay stratum, and the tunneling efficiency and the construction quality of the tunneling machine are guaranteed.

The inlet of the water pump 4 is provided with a filter device 3, and the outlet is provided with a pressure regulating valve 5 and a pressure gauge 6.

The water pump 4 may employ a high-pressure plunger pump driven by a high-power motor. The pressure regulating valve 5 can regulate the water outlet pressure according to the data of the pressure gauge 6, and the working condition requirements are met.

And a rotary joint 9 is arranged at the water path inlet of the development machine 10, and the rotary joint 9 is connected with the second connecting pipe 7. The rotary joint 9 has a function of rotating along with the deep-well boring machine 10 to ensure a constant pressure when the deep-well boring machine 10 is frequently rotated.

Specifically, storage water tank 1 of this embodiment includes a delivery port in the bottom, a water filling port and an gas vent on upper portion, and 2 both ends of connecting pipe are equipped with the joint of withholding, are used for connecting storage water tank 1 and filter 3 respectively, and filter 3 is used for filtering the impurity that probably gets into water pump 4. The water pump 4 adopts a high-pressure plunger pump to enable water to form high pressure, the pressure regulating valve 5 is provided with a manual regulating handle, pressure can be regulated according to pressure requirements, and the pressure gauge 6 can measure outlet pressure. The inner diameter of the first connecting pipe 2 is slightly larger than that of the second connecting pipe 7, so that the water quantity supplied to the motor to drive the high-pressure plunger water pump 4 is sufficient.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should be construed as being within the scope of the claims of the present invention.

Claims

1. The high-pressure water flushing system for deep well tunneling is characterized by comprising a water storage tank (1), a water pump (4) and a tunneling machine (10), wherein an outlet of the water storage tank (1) is connected with an inlet of the water pump (4) through a first connecting pipe (2), an outlet of the water pump (4) is connected with a water path inlet of the tunneling machine (10) through a second connecting pipe (7), and a water path outlet of the tunneling machine (10) is connected with a nozzle device through a third connecting pipe (11); the second connecting pipe (7) is lifted or lowered by the lifting unit (8), so that the second connecting pipe (8) can be lifted or lowered to be matched with the lifting of the heading machine (10).

2. The deep well excavation high-pressure water washing system according to claim 1, wherein the second connecting pipe (7) comprises a plurality of sections of unit pipes.

3. The deep well tunneling high-pressure water washing system according to claim 2, wherein the lifting unit (8) structurally comprises a support frame (81) with an arc-shaped top, transmission chains (82) are respectively arranged along two sides of the support frame (81), a plurality of connecting plates (83) are arranged between the transmission chains (82) along the conveying direction, a section of unit pipe is arranged between two adjacent connecting plates (83), and the adjacent unit pipes are sequentially connected through the connecting plates (83) to form the second connecting pipe (7).

4. The deep well tunneling high-pressure water flushing system according to claim 3, wherein a plurality of fixed pulleys (84) are respectively arranged along two sides of the supporting frame (81), and the fixed pulleys (84) provide support and guide for the transmission chain (82).

5. The deep well tunneling high-pressure water flushing system according to claim 3, wherein a driving fluted disc (85) is arranged on the supporting frame (81) and is in transmission fit with the transmission chain (82) through gear teeth (851).

6. The deep well tunneling high-pressure water flushing system according to claim 3, wherein a plurality of mounting holes are formed in the connecting plate (83).

7. The deep well tunneling high-pressure water washing system according to claim 1, wherein the structure of the nozzle device comprises a hard pipe (12) and a high-pressure nozzle (13), one end of the hard pipe (12) is connected with the third connecting pipe (11), the other end of the hard pipe is connected with the inlet of the high-pressure nozzle (13), the high-pressure nozzle (13) is arranged on the lower side of a milling and digging cutter (14) of the tunneling machine (10), and the outlet end of the high-pressure nozzle (13) is provided with a plurality of high-pressure nozzles (131) which are uniformly distributed along the axial direction of the milling and digging cutter (14).

8. The deep well tunneling high-pressure water washing system according to claim 1, wherein a filtering device (3) is arranged at an inlet of the water pump (4), and a pressure regulating valve (5) and a pressure gauge (6) are arranged at an outlet of the water pump (4).

9. The deep well excavation high-pressure water washing system according to claim 1, wherein a rotary joint (9) is arranged at a waterway inlet of the excavator (10), and the rotary joint (9) is connected with the second connecting pipe (7).