CN110096078B - Shield machine and shield machine protection system and method in extremely cold environment - Google Patents
Shield machine and shield machine protection system and method in extremely cold environment Download PDFInfo
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- CN110096078B CN110096078B CN201910418497.1A CN201910418497A CN110096078B CN 110096078 B CN110096078 B CN 110096078B CN 201910418497 A CN201910418497 A CN 201910418497A CN 110096078 B CN110096078 B CN 110096078B
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1932—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces
- G05D23/1934—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of a plurality of spaces each space being provided with one sensor acting on one or more control means
Abstract
The invention discloses a shield machine protection system in an extremely cold environment, which comprises: the first to fourth temperature sensors and the first to fourth heating devices are respectively arranged in a main control room, a power distribution cabinet, a frequency conversion cabinet and a control cabinet of the shield machine; the temperature controller is connected with each temperature sensor and is used for controlling the corresponding heating device to heat when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor; and the upper computer is connected with the temperature controller and is used for displaying 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. By the aid of the scheme, the shield machine can still run safely and reliably in an extremely cold environment, and the upper computer can monitor temperature data of the temperature sensors. The application also discloses a shield machine and a shield machine protection method under the extremely cold environment, and the shield machine protection method has corresponding technical effects.
Description
Technical Field
The invention relates to the technical field of shield tunneling, in particular to a shield tunneling machine and a shield tunneling machine protection system and method in an extremely cold environment.
Background
At present, most shield machines can only be used in normal temperature environment and cannot reliably operate in cold environment. Grease such as power oil and lubricating oil in the shield machine has changed physical properties under low-temperature environment, and mechanical structures such as a pump body and a gear are easily damaged; the cable is embrittled at low temperature and is easy to break. The performances of various components in the main control room, the frequency conversion cabinet, the power distribution cabinet and the control cabinet of the shield machine are affected by temperature, and related equipment can be damaged in serious conditions, and even safety accidents are caused. However, in some projects, the shield machine needs to be in a cold environment for a long time, for example, when a mossco subway project is carried out, the construction environment temperature is in a low level for a long time.
In summary, how to make the shield tunneling machine within the safe working temperature range and still be able to safely and reliably operate in an extremely cold environment is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a shield machine and a shield machine protection system and a shield machine protection method thereof in an extremely cold environment, so that the shield machine can still run safely and reliably in the extremely cold environment.
In order to solve the technical problems, the invention provides the following technical scheme:
a shield constructs quick-witted protection system under extremely cold environment includes:
the first temperature sensor and the first heating device are arranged in a main control room of the shield tunneling machine, and the first temperature sensor is used for detecting the temperature of the main control room;
the second temperature sensor and the second heating device are arranged in a power distribution cabinet of the shield tunneling machine, and the second temperature sensor is used for detecting the temperature of the power distribution cabinet;
the third temperature sensor and the third heating device are arranged in a frequency conversion cabinet of the shield machine, and the third temperature sensor is used for detecting the temperature of the frequency conversion cabinet;
the fourth temperature sensor and the fourth heating device are arranged in a control cabinet of the shield tunneling machine, and the fourth temperature sensor is used for detecting the temperature of the control cabinet;
the temperature controller is connected with each temperature sensor and is used for controlling the corresponding heating device to heat when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor;
and the upper computer is connected with the temperature controller and is used for displaying the temperature of the master control room, the temperature of the power distribution cabinet, the temperature of the frequency conversion cabinet and the temperature of the control cabinet.
Preferably, the upper computer is further configured to:
when a target command for any one or more of the first heating device, the second heating device, the third heating device and the fourth heating device is received, each heating device specified in the target command is controlled to heat by the temperature controller.
Preferably, the method further comprises the following steps:
the fifth temperature sensor and the fifth heating device are arranged in a water circulation system of the shield tunneling machine;
the fifth temperature sensor is used for detecting the temperature of water flow in the water circulation system and sending the temperature to the upper computer;
the upper computer is also used for: and receiving and displaying the water flow temperature, and controlling the fifth heating device to heat the water circulation system when receiving a water temperature lifting instruction.
Preferably, the method further comprises the following steps: the sixth temperature sensor and the sixth heating device are arranged in a hydraulic oil tank of the shield tunneling machine; the programmable logic controller PLC is connected with the sixth temperature sensor and the sixth heating device;
the sixth temperature sensor is used for detecting the oil temperature of the hydraulic oil tank;
the PLC is used for receiving the oil temperature when the hydraulic oil tank is in a working state and controlling the sixth heating device to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold value.
Preferably, the upper computer is connected with the PLC and is also used for displaying the oil temperature of the hydraulic oil tank.
A shield machine protection method in an extremely cold environment comprises the following steps:
a first temperature sensor arranged in a main control room of the shield tunneling machine detects the temperature of the main control room;
a second temperature sensor arranged in a power distribution cabinet of the shield tunneling machine detects the temperature of the power distribution cabinet;
a third temperature sensor arranged in a frequency conversion cabinet of the shield tunneling machine detects the temperature of the frequency conversion cabinet;
a fourth temperature sensor arranged in a control cabinet of the shield tunneling machine detects the temperature of the control cabinet;
the temperature controllers are connected with the temperature sensors, and when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor, the corresponding heating device is controlled to heat;
and an upper computer connected with the temperature controller displays 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.
Preferably, the method further comprises the following steps:
when the upper computer receives a target instruction aiming at any one or more of the first heating device, the second heating device, the third heating device and the fourth heating device, the upper computer controls each heating device appointed in the target instruction to heat through the temperature controller.
Preferably, the method further comprises the following steps:
a fifth temperature sensor arranged in a water circulation system of the shield machine detects the temperature of water flow in the water circulation system and sends the temperature to the upper computer;
and the upper computer receives and displays the water flow temperature, and controls a fifth heating device arranged in a water circulation system of the shield machine to heat the water circulation system when receiving a water temperature lifting instruction.
Preferably, the method further comprises the following steps:
a sixth temperature sensor arranged in a hydraulic oil tank of the shield tunneling machine detects the oil temperature of the hydraulic oil tank;
and the Programmable Logic Controller (PLC) is connected with the sixth temperature sensor and a sixth heating device arranged in a hydraulic oil tank of the shield tunneling machine, receives the oil temperature when the hydraulic oil tank is in a working state, and controls the sixth heating device to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold value.
A shield tunneling machine comprising the shield tunneling machine protection system in an extremely cold environment according to any one of the preceding claims.
By applying the technical scheme provided by the embodiment of the invention, the corresponding temperature sensors and heating devices are respectively arranged in the main control room, the power distribution cabinet, the frequency conversion cabinet and the control cabinet of the shield machine, and the temperature controller can control the corresponding heating devices to heat when the temperature value detected by any one temperature sensor is lower than the preset threshold value configured for the temperature sensor. Therefore, the temperature of main control room, switch board, inverter cabinet and switch board can be improved automatically under low temperature environment to this application, just also be favorable to the shield structure machine still can the safe and reliable ground operation under extremely cold environment. And the detection value of each temperature sensor can be monitored through the upper computer, so that the temperature state of the shield tunneling machine can be conveniently and comprehensively monitored by workers.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a shield machine protection system in an extremely cold environment according to the present invention;
FIG. 2 is another schematic structural diagram of a shield machine protection system in an extremely cold environment according to the present invention;
fig. 3 is a flow chart of an implementation of the shield machine protection method in an extremely cold environment according to the present invention.
Detailed Description
The core of the invention is to provide a shield machine protection system in an extremely cold environment, which can automatically increase the temperature of a main control room in a low-temperature environment and is beneficial to the safe and reliable operation of the shield machine in the extremely cold environment.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a shield machine protection system in an extremely cold environment according to the present invention, and the system may include:
the first temperature sensor 11 and the first heating device 21 are arranged in a main control room of the shield tunneling machine, and the first temperature sensor 11 is used for detecting the temperature of the main control room;
the second temperature sensor 12 and the second heating device 22 are arranged in a power distribution cabinet of the shield tunneling machine, and the second temperature sensor 12 is used for detecting the temperature of the power distribution cabinet;
the third temperature sensor 13 and the third heating device 23 are arranged in a frequency conversion cabinet of the shield tunneling machine, and the third temperature sensor 13 is used for detecting the temperature of the frequency conversion cabinet;
the fourth temperature sensor 14 and the fourth heating device 24 are arranged in a control cabinet of the shield tunneling machine, and the fourth temperature sensor 14 is used for detecting the temperature of the control cabinet;
the temperature controller 31 is connected with each temperature sensor and is used for controlling the corresponding heating device to heat when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor;
and the upper computer 41 is connected with the temperature controller 31 and is used for displaying 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.
The temperature of the main control room detected by the first temperature sensor 11 refers to the air temperature of the main control room, and the specific setting position of the first temperature sensor 11 in the main control room, the model number of the first temperature sensor 11 and other parameters can be set and adjusted according to the requirements. Correspondingly, what second temperature sensor 12, third temperature sensor 13 and fourth temperature sensor 14 detected respectively is the air temperature of switch board, inverter cabinet and switch board, and specific model parameter also can set for and adjust as required.
The temperature controller 31 may receive the master chamber temperatures transmitted by the respective temperature sensors. It should be noted that, in practical applications, the temperature controller 31 may be formed by a single controller, or may be of a distributed design, that is, the temperature controller may be formed by a plurality of sub-controllers, and the sub-controllers jointly implement the functions of the temperature controller 31 described in this application, without affecting the implementation of the present invention.
The temperature controller 31 compares the temperature value detected by any one of the temperature sensors with a corresponding threshold, and for convenience of description, the preset threshold configured for the first temperature sensor 11 is referred to as a first threshold, the preset threshold configured for the second temperature sensor 12 is referred to as a second threshold, the preset threshold configured for the third temperature sensor 13 is referred to as a third threshold, and the preset threshold configured for the fourth temperature sensor 14 is referred to as a fourth threshold.
The first temperature sensor 11 sends the detected temperature of the main control chamber to the temperature controller 31, the temperature controller 31 compares the temperature of the main control chamber with a preset first threshold, the specific value of the first threshold can be set according to actual needs, and of course, the second threshold, the third threshold and the fourth threshold can be set according to needs. When the temperature of the main control room is higher than the preset first threshold, it indicates that the air temperature of the main control room is not too low, and the temperature does not need to be increased, and when the temperature of the main control room is lower than the first threshold, the temperature controller 31 may control the first heating device 21 disposed in the main control room to heat, for example, the temperature controller 31 may output a control signal, which may be, for example, a high-level electrical signal, and the first heating device 21 may heat the main control room after receiving the signal.
In the above description, taking the master control room as an example, when the temperature value detected by any one of the temperature sensors is lower than the preset threshold configured for the temperature sensor, the temperature controller 31 controls the corresponding heating device to heat. That is, when the temperature value detected by any one of the temperature sensors is low, the temperature controller 31 controls the heating device capable of affecting the detection value of the temperature sensor to heat, so that the detection value of the temperature sensor is increased to be higher than the preset threshold value, and adverse effects of low temperature on the shield tunneling machine are avoided.
The specific structures of the first to fourth heating devices can be set and selected according to the needs, and for example, all the structures can be common electric heating pipes.
It should be noted that the trigger condition for heating the heating device to start heating is usually the output signal received from the temperature controller 31, but the trigger condition for stopping heating may be various and may be set as required.
For example, in one embodiment, the first heating device 21 heats the main control room after receiving the output signal of the temperature controller 31, and the heating is automatically stopped after a certain time, for example, one hour.
For another example, when the temperature of the main control chamber is lower than-10 ℃, the temperature controller 31 outputs a signal to enable the first heating device 21 to heat the main control chamber, and when the temperature of the main control chamber is higher than a certain value, for example, higher than 20 ℃, as the temperature rises, the temperature controller 31 stops outputting the signal to enable the first heating device 21 to stop heating the main control chamber. In this embodiment, the main control chamber is not heated until the temperature of the main control chamber is higher than a certain value, which is beneficial to avoiding frequent start and stop of the first heating device 21 when the ambient temperature is just near the preset threshold.
Master control room, switch board, inverter cabinet and switch board all are the important part of shield structure machine, consider that device wherein can receive microthermal influence, and this application has all carried out low temperature protection to master control room, switch board, inverter cabinet and switch board, is favorable to the comprehensive low temperature protection of shield structure machine promptly.
Further, host computer 41 is connected with temperature controller 31, can show the master-control room temperature, the switch board temperature, frequency conversion cabinet temperature and switch board temperature, and the staff through host computer 41 alright carry out comprehensive temperature monitoring with to master-control room, switch board, frequency conversion cabinet temperature and switch board.
Of course, when temperature sensors are also arranged in other parts of the shield tunneling machine, the shield tunneling machine can also be directly or indirectly in communication connection with the upper computer 41, that is, the upper computer 41 can monitor the detection values of the temperature sensors.
The technical scheme provided by the embodiment of the invention comprises the following steps: the first temperature sensor 11 and the first heating device 21 are arranged in a main control room of the shield tunneling machine, and the first temperature sensor 11 is used for detecting the temperature of the main control room; the second temperature sensor 12 and the second heating device 22 are arranged in a power distribution cabinet of the shield tunneling machine, and the second temperature sensor 12 is used for detecting the temperature of the power distribution cabinet; the third temperature sensor 13 and the third heating device 23 are arranged in a frequency conversion cabinet of the shield tunneling machine, and the third temperature sensor 13 is used for detecting the temperature of the frequency conversion cabinet; the fourth temperature sensor 14 and the fourth heating device 24 are arranged in a control cabinet of the shield tunneling machine, and the fourth temperature sensor 14 is used for detecting the temperature of the control cabinet; the temperature controller 31 is connected with each temperature sensor and is used for controlling the corresponding heating device to heat when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor; and the upper computer 41 is connected with the temperature controller 31 and is used for displaying 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.
In the scheme of this application, all set up corresponding temperature sensor and heating device in the main control room of shield structure machine, switch board, frequency conversion cabinet and the switch board, because temperature controller 31 can control corresponding heating device and heat when the temperature value that arbitrary one temperature sensor detected out is less than the predetermined threshold value for this temperature sensor configuration. Therefore, the temperature of main control room, switch board, inverter cabinet and switch board can be improved automatically under low temperature environment to this application, just also be favorable to the shield structure machine still can the safe and reliable ground operation under extremely cold environment. And the detection value of each temperature sensor can be monitored through the upper computer 41, so that the temperature state of the shield tunneling machine can be conveniently and comprehensively monitored by workers.
In an embodiment of the present invention, the upper computer 41 may further be configured to:
when receiving a target command for any one or more of the first heating device 21, the second heating device 22, the third heating device 23, and the fourth heating device 24, the temperature controller 31 controls each heating device specified in the target command to perform heating.
In this embodiment, the upper computer 41 can display the detection data of each temperature sensor, and can control each heating device according to the target command. The target instructions may typically be entered by a human operator.
For example, in a specific scenario, the threshold value allocated to the second temperature sensor 12 is-10 ℃, the temperature of the power distribution cabinet is-8 ℃, and since the temperature of the power distribution cabinet is higher than the threshold value, the temperature controller 31 does not automatically control the second heating device 22 to heat the power distribution cabinet. However, the staff considers that the ambient temperature still continues to be low, so that a target instruction for the second heating device 22 can be directly input to the upper computer 41, and the temperature controller 31 controls the second heating device 22 to heat the power distribution cabinet after receiving the target instruction. In this kind of embodiment, owing to can be through host computer 41 sending target instruction, realize the control to each heating device's running state for the scheme of this application supports manual operation and automatic operation to combine, has improved the flexibility of low temperature protection, and supports manual operation, also allows the staff to heat in advance according to actual conditions in order to prevent the low temperature condition.
In an embodiment of the present invention, the method may further include:
a fifth temperature sensor 15 and a fifth heating device 25 provided in a water circulation system of the shield tunneling machine;
the fifth temperature sensor 15 is used for detecting the temperature of water flow in the water circulation system and sending the temperature to the upper computer 41;
the upper computer 41 is also used for: and receiving and displaying the water flow temperature, and controlling the fifth heating device 25 to heat the water circulation system when receiving a water temperature increase instruction.
The water circulation system is also protected at low temperature in the embodiment because the water circulation system can be frozen in a low-temperature environment and even can be frozen and cracked in a circulating water conveying pipeline. The fifth heating device 25 may typically be a heating tube adapted for heating a liquid.
It should be noted that, in consideration of the fact that the water flow in the water circulation system is cooling water for relevant components in the shield machine, the shield machine can receive heat when running, that is, the probability of freezing of the circulating water due to environmental influence is very low, if the scheme is the same as that of the main control room, a water flow temperature threshold is set, and then the temperature controller 31 is used to automatically judge the water flow temperature, the probability of the water flow temperature is higher than the water flow temperature threshold, and the circulating water needs to be heated only in few cases, so that controller resources are wasted.
Thus, in this embodiment, the cryogenic protection of the water circulation system is accomplished directly by the upper computer 41. That is, when the upper computer 41 receives the water temperature raising instruction, the fifth heating device 25 is controlled to heat the water circulation system. The water temperature raising instruction is input by a worker. The temperature controller 31 is not needed to continuously and automatically judge whether the fifth heating device 25 needs to be started or not, so that the controller resource is saved.
In an embodiment of the present invention, the method may further include: a sixth temperature sensor 16 and a sixth heating device 26 which are arranged in a hydraulic oil tank of the shield tunneling machine; a PLC (Programmable Logic Controller) connected to both the sixth temperature sensor 16 and the sixth heating device 26;
the sixth temperature sensor 16 is used for detecting the oil temperature of the hydraulic oil tank;
the PLC is configured to receive the oil temperature when the hydraulic oil tank is in the operating state, and control the sixth heating device 26 to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold.
In consideration of the fact that power oil, lubricating oil and other grease in the shield tunneling machine are easy to damage mechanical structures such as a pump body and a gear in a low-temperature environment, the hydraulic oil tank is protected at low temperature in the embodiment.
Further, it is considered that when the hydraulic oil tank is in an operating state, the oil temperature is too low to damage related devices, but if the hydraulic oil tank is in a non-operating state, even if the oil temperature is too low, adverse effects are not caused. Therefore, in this embodiment, the PLC is used for the determination. The PLC may perform program setting in advance, and when it is determined that the hydraulic oil tank is in the operating state, the PLC may determine the oil temperature, and if the oil temperature is lower than a preset oil temperature threshold, the PLC controls the sixth heating device 26 to heat the hydraulic oil tank. If the common temperature controller 31 is used, the continuous automatic judgment can be carried out according to the signals of the related pins, and the low-temperature protection of the hydraulic oil tank is carried out by adopting the PLC in the embodiment, so that the waste of unnecessary controller resources is avoided. That is, the low temperature protection is performed only when the oil temperature is too low to damage the device, and the low temperature protection of the hydraulic oil tank is not performed when the oil temperature is too low and has no influence on the hydraulic oil tank in the non-operating state, so that the energy loss of the heating device is also saved.
It should be further noted that, in a specific embodiment of the present invention, for example, in the embodiment of fig. 2, the PLC32 may also be connected to the upper computer 41, and the upper computer 41 may display the oil temperature of the hydraulic oil tank, so that the worker may observe the oil temperature condition through the upper computer 41. Of course, in practical application, generally, the detection data of each temperature sensor in the shield machine is directly or indirectly sent to the upper computer 41, so that the worker can know the temperature conditions of each part of the shield machine.
In addition, the shield tunneling machine can adopt low-temperature-resistant cables in consideration of the low-temperature brittleness and breakage of the cables. For some components which are exposed to the environment and inconvenient to heat, low-temperature resistant models are adopted.
Corresponding to the above system embodiment, the embodiment of the present invention further provides a shield machine protection method, which can be referred to in correspondence with the above.
Referring to fig. 3, it is a flowchart of an implementation of a shield machine protection method in an extremely cold environment according to the present invention, where the method may include the following steps:
step S101: a first temperature sensor arranged in a main control room of the shield tunneling machine detects the temperature of the main control room;
step S102: a second temperature sensor arranged in a power distribution cabinet of the shield tunneling machine detects the temperature of the power distribution cabinet;
step S103: a third temperature sensor arranged in a frequency conversion cabinet of the shield tunneling machine detects the temperature of the frequency conversion cabinet;
step S104: a fourth temperature sensor arranged in a control cabinet of the shield tunneling machine detects the temperature of the control cabinet;
step S105: the temperature controllers are connected with the temperature sensors, and when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor, the corresponding heating device is controlled to heat;
step S106: and the upper computer connected with the temperature controller displays 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.
In one embodiment of the present invention, the method further comprises:
when the upper computer receives a target instruction aiming at any one or more of the first heating device, the second heating device, the third heating device and the fourth heating device, each heating device appointed in the target instruction is controlled by the temperature controller to heat.
In one embodiment of the present invention, the method further comprises:
a fifth temperature sensor arranged in a water circulation system of the shield machine detects the water flow temperature in the water circulation system and sends the water flow temperature to an upper computer;
the upper computer receives and displays the water flow temperature, and controls a fifth heating device arranged in a water circulation system of the shield machine to heat the water circulation system when receiving a water temperature lifting instruction.
In one embodiment of the present invention, the method further comprises:
a sixth temperature sensor arranged in a hydraulic oil tank of the shield tunneling machine detects the oil temperature of the hydraulic oil tank;
and the programmable logic controller PLC is connected with the sixth temperature sensor and a sixth heating device arranged in a hydraulic oil tank of the shield tunneling machine, receives the oil temperature when the hydraulic oil tank is in a working state, and controls the sixth heating device to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold value.
Corresponding to the above method and system embodiments, embodiments of the present invention further provide a shield machine, which may include the shield machine protection system in an extremely cold environment in any of the above embodiments, and description thereof is not repeated here.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a shield constructs quick-witted protection system under extremely cold environment which characterized in that includes:
the first temperature sensor and the first heating device are arranged in a main control room of the shield tunneling machine, and the first temperature sensor is used for detecting the temperature of the main control room;
the second temperature sensor and the second heating device are arranged in a power distribution cabinet of the shield tunneling machine, and the second temperature sensor is used for detecting the temperature of the power distribution cabinet;
the third temperature sensor and the third heating device are arranged in a frequency conversion cabinet of the shield machine, and the third temperature sensor is used for detecting the temperature of the frequency conversion cabinet;
the fourth temperature sensor and the fourth heating device are arranged in a control cabinet of the shield tunneling machine, and the fourth temperature sensor is used for detecting the temperature of the control cabinet;
the temperature controller is connected with each temperature sensor and is used for controlling the corresponding heating device to heat when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor;
the upper computer is connected with the temperature controller and is used for displaying 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;
further comprising:
the fifth temperature sensor and the fifth heating device are arranged in a water circulation system of the shield tunneling machine;
the fifth temperature sensor is used for detecting the temperature of water flow in the water circulation system and sending the temperature to the upper computer;
the upper computer is also used for: receiving and displaying the water flow temperature, and controlling the fifth heating device to heat the water circulation system when receiving a water temperature lifting instruction;
further comprising: the sixth temperature sensor and the sixth heating device are arranged in a hydraulic oil tank of the shield tunneling machine; the programmable logic controller PLC is connected with the sixth temperature sensor and the sixth heating device;
the sixth temperature sensor is used for detecting the oil temperature of the hydraulic oil tank;
the PLC is used for receiving the oil temperature when the hydraulic oil tank is in a working state and controlling the sixth heating device to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold value.
2. The shield machine protection system in the extremely cold environment of claim 1, wherein the upper computer is further configured to:
when a target command for any one or more of the first heating device, the second heating device, the third heating device and the fourth heating device is received, each heating device specified in the target command is controlled to heat by the temperature controller.
3. The shield machine protection system in the extremely cold environment according to claim 1, wherein the upper computer is connected to the PLC and is further configured to display an oil temperature of the hydraulic oil tank.
4. A shield machine protection method in an extremely cold environment is characterized by comprising the following steps:
a first temperature sensor arranged in a main control room of the shield tunneling machine detects the temperature of the main control room;
a second temperature sensor arranged in a power distribution cabinet of the shield tunneling machine detects the temperature of the power distribution cabinet;
a third temperature sensor arranged in a frequency conversion cabinet of the shield tunneling machine detects the temperature of the frequency conversion cabinet;
a fourth temperature sensor arranged in a control cabinet of the shield tunneling machine detects the temperature of the control cabinet;
the temperature controllers are connected with the temperature sensors, and when the temperature value detected by any one temperature sensor is lower than a preset threshold value configured for the temperature sensor, the corresponding heating device is controlled to heat;
an upper computer connected with the temperature controller displays 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;
further comprising:
a fifth temperature sensor arranged in a water circulation system of the shield machine detects the temperature of water flow in the water circulation system and sends the temperature to the upper computer;
the upper computer receives and displays the water flow temperature, and controls a fifth heating device arranged in a water circulation system of the shield machine to heat the water circulation system when receiving a water temperature lifting instruction;
further comprising:
a sixth temperature sensor arranged in a hydraulic oil tank of the shield tunneling machine detects the oil temperature of the hydraulic oil tank;
and the Programmable Logic Controller (PLC) is connected with the sixth temperature sensor and a sixth heating device arranged in a hydraulic oil tank of the shield tunneling machine, receives the oil temperature when the hydraulic oil tank is in a working state, and controls the sixth heating device to heat the hydraulic oil tank when the oil temperature is lower than a preset oil temperature threshold value.
5. The shield machine protection method in the extremely cold environment according to claim 4, further comprising:
when the upper computer receives a target instruction aiming at any one or more of the first heating device, the second heating device, the third heating device and the fourth heating device, each heating device appointed in the target instruction is controlled to heat through the temperature controller.
6. A shield tunneling machine comprising the shield tunneling machine protection system in an extremely cold environment according to any one of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910418497.1A CN110096078B (en) | 2019-05-20 | 2019-05-20 | Shield machine and shield machine protection system and method in extremely cold environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN202690069U (en) * | 2012-06-15 | 2013-01-23 | 南车资阳机车有限公司 | Electrical control system of shield tunneling machine with diameter of 2 meters |
| CN207231529U (en) * | 2017-08-15 | 2018-04-13 | 中铁隧道集团有限公司 | A kind of shield/TBM on-line condition monitoring systems |
| CN108386214B (en) * | 2018-02-09 | 2019-05-21 | 中交第二航务工程局有限公司 | To the method for shield machine equipment downhole stored heat preservation under extreme low temperature weather |
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