Shield machine and protection system and method for shield machine in extremely cold environment
An extremely cold environment and protection system technology, applied in control/regulation systems, earthwork drilling, temperature control using electric methods, etc., can solve problems such as safety accidents, performance impact, and damaged equipment, and achieve safe and reliable operation.
Active Publication Date: 2021-05-04
CHINA RAILWAY CONSTR HEAVY IND
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Problems solved by technology
In the main control room of the shield machine, the frequency conversion cabinet, power distribution cabinet, and the performance of various components in the control cabinet will be affected by the temperature, and in severe cases, it may damage related equipment and even cause safety accidents
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[0044] The core of the present invention is to provide a shield machine protection system in an extremely cold environment, which can automatically increase the temperature of the main control room in a low temperature environment, which is also conducive to the safe and reliable operation of the shield machine in an extremely cold environment. run.
[0045] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0046] Please refer to figure 1 , figure 1 It is a struc...
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The invention discloses a protection system for a shield machine in an extremely cold environment, comprising: first to fourth temperature sensors and a first to fourth temperature sensor respectively arranged in the main control room, power distribution cabinet, frequency conversion cabinet and control cabinet of the shield machine One to the fourth heating device; a temperature controller connected to each temperature sensor, used to control the corresponding heating device when the temperature value detected by any temperature sensor is lower than the preset threshold configured for the temperature sensor. Heating; the upper computer connected with the temperature controller is used to display the temperature of the main control room, the temperature of the power distribution cabinet, the temperature of the frequency conversion cabinet and the temperature of the control cabinet. Applying the solution of this application is beneficial to the safe and reliable operation of the shield machine in an extremely cold environment, and the upper computer can monitor the temperature data of each temperature sensor. The application also discloses a shield machine and a protection method for the shield machine in an extremely cold environment, which have corresponding technical effects.
Description
technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a shield machine and its protection system and method for the shield machine in an extremely cold environment. Background technique [0002] At present, most shield machines can only be used in normal temperature environments and cannot operate reliably in cold environments. The physical properties of power oil, lubricating oil and other greases in the shield machine change in the low temperature environment, which can easily damage the mechanical structures such as the pump body and gears; the cables are brittle and easy to break at low temperature. In the main control room of the shield machine, the frequency conversion cabinet, power distribution cabinet, and the performance of various components in the control cabinet will be affected by temperature, and in severe cases, related equipment may be damaged, and even cause safety accidents. However, in some projects, th...
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IPC IPC(8): G05D23/19E21D9/06
CPCE21D9/06G05D23/1934
Inventor 刘飞香程永亮刘巧龙李武峰严弛宋志友陶柳明王晓伟李兵陈永健
Owner CHINA RAILWAY CONSTR HEAVY IND