阅读说明：本技术 用于保持盾构开挖面的压力的电控气平衡装置 (Electric control gas balancing device for maintaining pressure of shield excavation surface ) 是由 赵洁咏 刘雅坤 石东东 刘宁波 李福强 于 2021-10-20 设计创作，主要内容包括：本发明公开了一种用于保持盾构开挖面的压力的电控气平衡装置,包含：空气舱；压力检测模块,压力检测模块设置在空气舱上,用于检测空气舱的空气压力；进出气模块,进出气模块与空气舱相连,用于向空气舱内进气或排出空气舱内的空气；控制模块,控制模块与压力检测模块以及进出气模块电性连接,用于数据的处理以及发出指令控制。本发明摒弃现有的气动控制的气平衡装置,采用电动控制的气平衡装置,使得元器件选择范围常规化,在降低装置成本的同时,取得与气动控制的气平衡装置同等的效果。(The invention discloses an electric control air balancing device for keeping the pressure of a shield excavation surface, which comprises: an air chamber; the pressure detection module is arranged on the air cabin and used for detecting the air pressure of the air cabin; the air inlet and outlet module is connected with the air cabin and is used for introducing air into the air cabin or discharging air in the air cabin; and the control module is electrically connected with the pressure detection module and the gas inlet and outlet module and is used for processing data and sending out command control. The invention abandons the prior pneumatic control air balancing device and adopts the electric control air balancing device, so that the selection range of components is normal, and the invention obtains the same effect as the pneumatic control air balancing device while reducing the cost of the device.)

1. An electrically controlled air balancing device for maintaining pressure in a shield excavation face, comprising:

an air chamber;

the pressure detection module is arranged on the air cabin and used for detecting the air pressure of the air cabin;

the air inlet and outlet module is connected with the air cabin and is used for introducing air into the air cabin or discharging air in the air cabin;

and the control module is electrically connected with the pressure detection module and the air inlet and outlet module and is used for processing data and sending out command control.

2. The electrically controlled pneumatic pressure maintenance apparatus for maintaining pressure in a shield excavation face of claim 1, wherein the pressure detection module comprises: and the pressure transmitter is arranged on the air cabin and is electrically connected with the control module.

3. An electrically controlled air balance device for maintaining pressure in a shield excavation face according to claim 1, wherein the air inlet and outlet module comprises:

the air inlet assembly is connected with the air cabin and is used for introducing air into the air cabin;

and the air outlet assembly is connected with the air cabin and is used for discharging the air in the air cabin.

4. An electrically controlled air balancing apparatus for maintaining pressure in a shield excavation face as claimed in claim 3, wherein the air intake assembly comprises:

the air inlet pipe is connected with the air cabin;

the first manual valve is connected with the air inlet pipe;

the air inlet valve is connected with the air inlet pipe and located on one side, away from the air chamber, of the first manual valve, and the air inlet valve is electrically connected with the control module.

5. An electrically controlled air balancing apparatus for maintaining pressure in a shield excavation face as claimed in claim 4, wherein the air outlet assembly comprises:

the air outlet pipe is connected with the air chamber;

the second manual valve is connected with the air outlet pipe;

and the air outlet valve is connected with the air outlet pipe and is positioned on one side of the second manual valve, which is far away from the air cabin, and the air outlet valve is electrically connected with the control module.

6. The electronically controlled pneumatic pressure maintenance apparatus for maintaining pressure in an excavation face of a shield according to claim 1, wherein the control module comprises: and the electric controller is electrically connected with the pressure detection module and the air inlet and outlet module and is used for processing data and sending out command control.

Technical Field

The invention relates to the technical field of slurry shield construction equipment, in particular to an electric control air balancing device for maintaining the pressure of a shield excavation surface.

Background

In general slurry shield construction, besides the traditional construction parameters of shield thrust, cutter torque, propulsion speed, slurry feeding and discharging of a slurry system and the like are combined to control the stability of an excavation surface, an air balance system is also a method for maintaining the pressure of the excavation surface, and the pressure of an air chamber in the upper space of a slurry liquid level is kept stable by comparing set pressure with detected actual pressure of the air chamber to control the opening and closing of an air inlet valve and an air outlet valve. The prior air balance device controls the operation of the whole air balance system by inputting or outputting air signals through the air controller, and has few choices of air control components besides high requirements on air sources of the air signals. Aiming at the current situation of a pneumatic control air balancing device, the scheme provides a set of pneumatic control air balancing device, and the electric air inlet valve and the electric air outlet valve are controlled to be opened and closed through an electric controller in shield construction, so that the pressure of an air chamber is stable.

Disclosure of Invention

According to an embodiment of the present invention, there is provided an electrically controlled air balancing apparatus for maintaining pressure of a shield excavation surface, including:

an air chamber;

the pressure detection module is arranged on the air cabin and used for detecting the air pressure of the air cabin;

the air inlet and outlet module is connected with the air cabin and is used for introducing air into the air cabin or discharging air in the air cabin;

and the control module is electrically connected with the pressure detection module and the gas inlet and outlet module and is used for processing data and sending out command control.

Further, the pressure detection module comprises: and the pressure transmitter is arranged on the air cabin and is electrically connected with the control module.

Further, the gas inlet and outlet module comprises:

the air inlet assembly is connected with the air cabin and is used for introducing air into the air cabin;

and the air outlet assembly is connected with the air cabin and is used for discharging air in the air cabin.

Further, the air intake assembly includes:

the air inlet pipe is connected with the air cabin;

the first manual valve is connected with the air inlet pipe;

the air inlet valve is connected with the air inlet pipe and is located on one side, away from the air chamber, of the first manual valve, and the air inlet valve is electrically connected with the control module.

Further, the air outlet assembly comprises:

the air outlet pipe is connected with the air chamber;

the second manual valve is connected with the air outlet pipe;

and the air outlet valve is connected with the air outlet pipe and is positioned on one side of the second manual valve, which is far away from the air cabin, and the air outlet valve is electrically connected with the control module.

Further, the control module includes: and the electric controller is electrically connected with the pressure detection module and the gas inlet and outlet module and is used for processing data and sending out an instruction for control.

According to the electric control air balance device for keeping the pressure of the shield excavation surface, the existing pneumatic control air balance device is abandoned, the electric control air balance device is adopted, the component selection range is standardized, the device cost is reduced, and the effect equivalent to that of the pneumatic control air balance device is achieved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

Fig. 1 is an overall structural view of an electrically controlled air balance device for maintaining pressure of a shield excavation face according to an embodiment of the present invention.

Detailed Description

The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.

First, an electrically controlled gas balancing apparatus for maintaining pressure of a shield excavation surface according to an embodiment of the present invention will be described with reference to fig. 1, which is used to maintain the balance of gas pressure and has a wide application range.

As shown in fig. 1, the electrically controlled air balance device for maintaining the pressure of the shield excavation surface according to the embodiment of the present invention includes an air chamber 1, a pressure detection module, an air inlet/outlet module, and a control module.

Specifically, as shown in fig. 1, in this embodiment, the pressure detection module is disposed on the air chamber 1 and configured to detect air pressure of the air chamber 1, the air inlet and outlet module is connected to the air chamber 1 and configured to inlet air into the air chamber 1 or discharge air out of the air chamber 1, the control module is electrically connected to the pressure detection module and the air inlet and outlet module and configured to process data and send instruction control, and the pressure detection module, the air inlet and outlet module and the control module are matched with the air chamber 1 to ensure stability of pressure in the air chamber 1 and balance the pressure in the air chamber 1.

Further, as shown in fig. 1, in this embodiment, the pressure detection module includes: the pressure transmitter 21 is arranged on the air chamber 1, the pressure transmitter 21 is electrically connected with the control module, and the pressure transmitter 21 is used for detecting the actual air pressure in the air chamber 1 and transmitting the data of the actual air pressure to the control module.

Further, as shown in fig. 1, in the present embodiment, the gas inlet and outlet module includes: the air inlet component and the air outlet component. The air inlet assembly is connected with the air cabin 1 and is used for introducing air into the air cabin 1; the air outlet assembly is connected with the air chamber 1 and used for discharging air in the air chamber 1, and controlling the balance of the air in the air chamber 1 by injecting or discharging the air in the air chamber 1 so as to stabilize the air.

Further, as shown in fig. 1, in the present embodiment, the intake assembly includes: an intake pipe 311, a first manual valve 312, and an intake valve 313. The air inlet pipe 311 is connected with the air chamber 1, the first manual valve 312 is connected with the air inlet pipe 311, the air inlet valve 313 is connected with the air inlet pipe 311 and is located on one side, away from the air chamber 1, of the first manual valve 312, the air inlet valve 313 is electrically connected with the control module, the air inlet pipe 311 is used for introducing air into the air chamber 1, the first manual valve 312 is used for controlling the on-off of the air inlet pipe 311, when the equipment runs, the first manual valve 312 is in a normally open state, the air inlet valve 313 is used for controlling the on-off of the air inlet pipe 311, and the control module can control the opening and closing of the air inlet valve 313.

Further, as shown in fig. 1, in the present embodiment, the air outlet assembly includes: an air outlet pipe 321, a second manual valve 322 and an air outlet valve 323. The air outlet pipe 321 is connected with the air chamber 1, the second manual valve 322 is connected with the air outlet pipe 321, the air outlet valve 323 is connected with the air outlet pipe 321 and located on one side, away from the air chamber 1, of the second manual valve 322, the air outlet valve 323 is electrically connected with the control module, the air outlet pipe 321 is used for discharging air in the air chamber 1, the second manual valve 322 is used for controlling the on-off of the air outlet pipe 321, when the equipment runs, the second manual valve 322 is in a normally open state, the air outlet valve 323 is used for controlling the on-off of the air outlet pipe 321, and the control module can control the opening and closing of the air outlet valve 323.

Further, as shown in fig. 1, in this embodiment, the control module includes: and the electric controller 41 is electrically connected with the pressure detection module and the gas inlet and outlet module, is used for processing data and sending out command control, and transmits the command and the information data through electric signals.

When the device is in use, the first manual valve 312 and the second manual valve 322 are both in a normally open state, then the electric controller 41 sets the pressure required by the air chamber 1, compared with the actual pressure of the air chamber 1 detected by the pressure transmitter 21, when the pressure transmitter 21 detects that the actual pressure of the air chamber 1 is the same as the set air pressure, the electric controller 41 gives a command that the air inlet valve 313 and the air outlet valve 323 are both in a closed state, when the pressure transmitter 21 detects that the actual pressure of the air chamber 1 is less than the set air pressure, the electric controller 41 gives a command that the air inlet valve 313 opens the air inlet, the air outlet valve 323 is in a closed state until the air is balanced, when the pressure transmitter 21 detects that the actual pressure of the air chamber 1 is greater than the set air pressure, the electric controller 41 gives a command that the air outlet valve 323 opens the air outlet, and the air inlet valve 313 is in a closed state, until the gas is in equilibrium.

In the above, referring to fig. 1, the electrically controlled air balance device for maintaining the pressure of the shield excavation surface according to the embodiment of the present invention is described, and an existing pneumatically controlled air balance device is eliminated, and an electrically controlled air balance device is used, so that the selection range of components is standardized, and the device cost is reduced, and at the same time, the same effect as that of the pneumatically controlled air balance device is obtained.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.