CN117005880A - Pneumatic intelligent pressure maintaining system of shield tunneling machine - Google Patents
Pneumatic intelligent pressure maintaining system of shield tunneling machine Download PDFInfo
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- CN117005880A CN117005880A CN202311109749.5A CN202311109749A CN117005880A CN 117005880 A CN117005880 A CN 117005880A CN 202311109749 A CN202311109749 A CN 202311109749A CN 117005880 A CN117005880 A CN 117005880A
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- 230000005641 tunneling Effects 0.000 title claims description 27
- 230000007246 mechanism Effects 0.000 claims description 39
- 230000035485 pulse pressure Effects 0.000 claims description 32
- 238000012544 monitoring process Methods 0.000 claims description 15
- 230000003247 decreasing effect Effects 0.000 claims description 7
- 239000013589 supplement Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 description 12
- 230000001276 controlling effect Effects 0.000 description 10
- 230000009977 dual effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011065 in-situ storage Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004872 arterial blood pressure Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
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Abstract
The application discloses a pneumatic intelligent pressure maintaining system of a shield machine, which relates to the technical field of shield equipment, and comprises a main control device, a pressure maintaining bin, a first pressure maintaining loop, a second pressure maintaining loop, a double pneumatic control reversing valve and an air supply device; the pressure maintaining bin is connected with the master control device; the air pressure transmitting device is respectively connected with the pressure maintaining bin, the adjusting operation device and the master control device; the second pressure maintaining loop is respectively connected with the master control device and the pressure maintaining bin; the double pneumatic control reversing valve is respectively connected with the first pressure maintaining loop, the second pressure maintaining loop and the master control device; the air supply device is connected with the double pneumatic control reversing valve. The application improves the information intercommunication between the shield machine pressure-maintaining loop and the master control device and the automation degree of the shield machine pneumatic pressure-maintaining system.
Description
Technical Field
The application relates to the technical field of shield equipment, in particular to a pneumatic intelligent pressure maintaining system of a shield machine.
Background
In the related art, the pressure maintaining mode of the main control unit of the pressure maintaining system of the shield machine is as follows: the pressure in the shield machine pressure maintaining bin is transmitted to a central control room through a gas-electric pressure transmitter, the pressure in the shield machine pressure maintaining bin is monitored by the central control room, the pressure in the shield machine pressure maintaining bin is transmitted to an adjusting arithmetic unit through the gas-electric pressure transmitter, the adjusting arithmetic unit can set the pressure value in the shield machine pressure maintaining bin on site, and after the pressure value is compared with the actual shield machine pressure, the control pressure is sent to an air inlet adjusting valve and an air exhaust adjusting valve to control the shield machine pressure maintaining bin, and finally the effect of adjusting the pressure of the pressure maintaining bin is achieved.
However, in the shield tunneling machine pressure maintaining system, the master control device can only monitor the pressure change of the shield tunneling machine pressure maintaining bin, if the control pressure needs to be changed, the manual operation is needed to be carried out on the site of the pressure maintaining system, and the timely control in a central control room cannot be realized; the central control room can not comprehensively and accurately judge and handle the operation because of less field monitoring information of the pressure maintaining system; when one pressure maintaining loop component fails, the other pressure maintaining loop can be manually switched to the other pressure maintaining loop on site, and timeliness and convenience cannot be achieved; when the two pressure maintaining loops are switched on site, the air sources of different components are cut off through the switches of a plurality of groups of manual valves, so that the air sources lose or recover functions, the process is complex, and errors are easy to occur.
Disclosure of Invention
The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, the application provides the pneumatic intelligent pressure maintaining system of the shield machine, which improves the information intercommunication between the pressure maintaining loop of the shield machine and the master control device and further improves the automation degree of the pneumatic pressure maintaining system of the shield machine.
The application provides a pneumatic intelligent pressure maintaining system of a shield machine, which comprises the following components:
a master control device;
the pressure maintaining bin is connected with the master control device;
the first pressure-maintaining loop comprises a bin pressure setting assembly, an air inlet and exhaust adjusting assembly, an adjusting operation device and an air pressure transmitting device; the bin pressure setting assembly is respectively connected with the master control device and the adjusting operation device, and the master control device is used for controlling the bin pressure setting assembly to increase and decrease the bin pressure preset value of the pressure maintaining bin; the air inlet and exhaust adjusting component is connected with the pressure maintaining bin; the adjusting operation device is respectively connected with the bin pressure setting assembly and the air inlet and exhaust adjusting assembly; the air pressure transmitting device is respectively connected with the pressure maintaining bin, the adjusting operation device and the master control device, and is used for determining the current pressure value of the pressure maintaining bin and outputting the current pressure value to the adjusting operation device and the master control device respectively so that the adjusting operation device controls the air inlet and air outlet adjusting assembly to supplement or exhaust the pressure maintaining bin according to the current pressure value;
the second pressure maintaining loop is respectively connected with the master control device and the pressure maintaining bin;
the double pneumatic control reversing valve is respectively connected with the first pressure maintaining loop, the second pressure maintaining loop and the master control device;
the air supply device is connected with the double air control reversing valve, and the master control device is further used for controlling the air supply device to supply air to the first pressure maintaining loop through the double air control reversing valve so as to drive the first pressure maintaining loop to enter a working state, or controlling the air supply device to supply air to the second pressure maintaining loop through the double air control reversing valve so as to drive the second pressure maintaining loop to enter the working state.
The pneumatic intelligent pressure maintaining system of the shield machine provided by the embodiment of the application has at least the following beneficial effects: the bin pressure setting assembly is controlled by the master control device to increase or decrease the preset bin pressure value of the pressure maintaining bin so as to realize the remote setting of the preset bin pressure value by the master control device; the air pressure transmitting device is used for determining the current pressure value of the pressure maintaining bin and respectively outputting the current pressure value to the adjusting operation device and the master control device so that the adjusting operation device controls the air inlet and air outlet adjusting assembly to perform filling or air outlet operation on the pressure maintaining bin according to the current pressure value, and the air pressure transmitting device is also used for outputting the current bin pressure value of the pressure maintaining bin subjected to filling or air outlet operation to the master control device so as to realize the pressure maintaining function of the current pressure maintaining loop on the pressure maintaining bin; the main control device is also used for controlling the air supply device to supply air to the first pressure maintaining loop through the double pneumatic control reversing valve so as to drive the first pressure maintaining loop to enter the working state, or controlling the air supply device to supply air to the second pressure maintaining loop through the double pneumatic control reversing valve so as to drive the second pressure maintaining loop to enter the working state, and controlling the air supply device to switch the first pressure maintaining loop and the second pressure maintaining loop between a main pipeline air source and an air source-free air source through the double pneumatic control reversing valve, so that the switching of the pressure maintaining operation of the first pressure maintaining loop and the second pressure maintaining loop to the pressure maintaining bin is realized. By the arrangement, the information intercommunication between the shield machine pressure-maintaining loop and the master control device is improved, the automation degree of the shield machine pneumatic pressure-maintaining system is further improved, and the labor cost is reduced.
According to some embodiments of the present application, the cabin pressure setting assembly includes a first pneumatic button, a second pneumatic button, a pulse pressure regulator, and a first pneumatic pressure transmitting device, one end of the pulse pressure regulator is connected to the first pneumatic button and the second pneumatic button, the other end of the pulse pressure regulator is connected to the regulating operation device and the first pneumatic pressure transmitting device, the first pneumatic pressure transmitting device is connected to the master control device, and the pulse pressure regulator is used for performing an increasing and decreasing operation on a preset cabin pressure value of the pressure maintaining cabin to obtain a current cabin pressure setting value, and transmitting the current cabin pressure setting value to the master control device through the first pneumatic pressure transmitting device.
According to some embodiments of the application, the cabin pressure setting assembly further comprises a first electric converter and a second electric converter, the first electric converter is respectively connected with the pulse pressure regulator and the master control device, the second electric converter is respectively connected with the pulse pressure regulator and the master control device, and the master control device is further used for controlling the pulse pressure regulator to increase or decrease the preset cabin pressure value of the pressure maintaining cabin through the first electric converter and the second electric converter to obtain a current cabin pressure setting value and transmitting the current cabin pressure setting value to the master control device through the first air-electric pressure transmitting device.
According to some embodiments of the present application, the cabin pressure setting assembly further includes a multiple-way selection reversing assembly and a first gas-electric converter, the first gas-electric converter is respectively connected with the multiple-way selection reversing assembly and the master control device, the multiple-way selection reversing assembly is respectively and selectively connected with the first pneumatic button, the second pneumatic button, the first electric converter and the second electric converter, and the multiple-way selection reversing assembly is used for selectively driving the pulse pressure regulator to increase or decrease the preset value of the pressure maintaining cabin through the first pneumatic button and the second pneumatic button, or selectively driving the pulse pressure regulator to increase or decrease the preset value of the pressure maintaining cabin through the first electric converter and the second electric converter.
According to some embodiments of the present application, the air intake and exhaust adjusting assembly includes an air intake adjusting mechanism and an exhaust adjusting mechanism, the first pressure maintaining loop further includes an air source input pipeline, the air intake adjusting mechanism is respectively connected with the pressure maintaining cabin, the adjusting operation device, the double air control reversing valve and the air source input pipeline, and the exhaust adjusting mechanism is respectively connected with the pressure maintaining cabin, the adjusting operation device and the double air control reversing valve.
According to some embodiments of the application, the first pressure-maintaining circuit further comprises a single-path pneumatic control reversing valve and a constant pressure reducing valve, the single-path pneumatic control reversing assembly is selectively connected with the adjusting operation device and the constant pressure reducing valve respectively, and the single-path pneumatic control reversing assembly is further connected with the double-pneumatic control reversing valve, the air inlet adjusting mechanism and the air outlet adjusting mechanism respectively.
According to some embodiments of the application, the shield tunneling machine pneumatic intelligent pressure maintaining system further comprises an alarm device, the first pressure maintaining loop further comprises an air pressure monitoring mechanism, a fault indicator, an acoustic alarm piece, a third electric converter and a second electric converter, one end of the air pressure monitoring mechanism is connected with the first pressure maintaining loop, the other end of the air pressure monitoring mechanism is connected with the alarm device, the alarm device is respectively connected with the fault indicator, the acoustic alarm piece, the second electric converter and the third electric converter, the second electric converter is further connected with the fault indicator and the master control device, and the third electric converter is further connected with the master control device.
According to some embodiments of the application, the shield tunneling machine pneumatic intelligent pressure maintaining system further comprises a third pneumatic button, wherein the third pneumatic button is connected with the alarm device and is used for closing the warning signal of the sound alarm piece.
According to some embodiments of the application, the first voltage-keeping circuit further comprises a fourth pneumatic button and a fourth electrical converter, one end of the fourth pneumatic button is connected with the double-pneumatic control reversing valve, the other end of the fourth pneumatic button is connected with the master control device through the fourth electrical converter, and the fourth pneumatic button is used for controlling whether the double-pneumatic control reversing valve is connected with the first voltage-keeping circuit or not.
According to some embodiments of the application, the shield tunneling machine pneumatic intelligent pressure maintaining system further comprises an integrated control cabinet, wherein the master control device, the bin pressure setting assembly, the air inlet and exhaust adjusting assembly, the adjusting operation device, the second pressure maintaining loop, the double pneumatic control reversing valve and the air supply device are all arranged in the integrated control cabinet.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
Drawings
Additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a pneumatic intelligent pressure maintaining system of a shield tunneling machine according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a shield tunneling machine pressure maintenance system provided in the prior art;
FIG. 3 is a schematic front view of an integrated control cabinet according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of the inside of the integrated control cabinet body according to the embodiment of the present application;
FIG. 5 is a schematic side view of an integrated control cabinet according to an embodiment of the present application;
fig. 6 is another schematic side view of the integrated control cabinet according to the embodiment of the present application.
Reference numerals:
the pressure maintaining bin 110, the master control device 111, the air inlet regulating mechanism 112, the air outlet regulating mechanism 113, the air source input pipeline 114, the second pneumatic pressure transmitting device 116 and the air source reducing valve 117;
the regulation operation device 120, the one-way pneumatic control reversing valve 121, the constant value reducing valve 122, the operation indicator 123, the third pneumatic pressure transmitting device 124 and the pneumatic pressure transmitting device 125;
a pulse pressure regulator 130, a first pneumatic button 131, a second pneumatic button 132, a first pneumatic pressure transmitter 133, a multiple-choice reversing component 134, a first pneumatic electric converter 135, a first electric converter 136, a second electric converter 137;
an operating status indicator lamp 140, a third gas-electric converter 141;
a double pneumatic reversing valve 150, a gas supply device 151, a fourth pneumatic button 152, a fourth electrical converter 153;
an alarm 160, an air pressure monitoring mechanism 161, a fault indicator 162, an audible alarm 163, a third electrical converter 164, a second pneumatic-electric converter 165, and a third pneumatic button 166;
an integrated control cabinet 170 and an air passage interface 171.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
In the description of the present application, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present application and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
In the description of the present application, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.
In the description of the present application, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present application can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Referring to fig. 2, in the related art, the pressure maintaining manner of the main control unit 215 of the pressure maintaining system of the shield machine is: the pressure maintaining bin 210 is externally connected with an air inlet regulating valve 211 and an air outlet regulating valve 212, and when the pressure in the pressure maintaining bin 210 is lower than a set value, an air source supplements air to the pressure maintaining bin 210 through the air inlet regulating valve 211; when the pressure in the pressure maintaining chamber 210 is higher than the set value, the air is exhausted to the outside through the air exhaust adjusting valve 212. The pressure in the shield machine pressure maintaining bin 210 is transmitted to a central control room 217 through a gas-electric pressure transmitter 213, the pressure in the shield machine pressure maintaining bin 210 is monitored by the central control room 217, the pressure in the shield machine pressure maintaining bin is transmitted to a regulating arithmetic unit 216 through the gas-electric pressure transmitter 214, the regulating arithmetic unit 216 can set the pressure value in the shield machine pressure maintaining bin on site, and after the pressure value is compared with the actual pressure in the shield machine pressure maintaining bin, the control pressure is transmitted to an air inlet regulating valve 211 and an air outlet regulating valve 212 so as to control the pressure in the shield machine pressure maintaining bin 210, and finally, the effect of regulating the pressure of the pressure maintaining bin is achieved.
However, in the shield tunneling machine pressure maintaining system, the master control device can only monitor the pressure change of the shield tunneling machine pressure maintaining bin 210, if the control pressure needs to be changed, the manual operation is needed to be performed on site of the pressure maintaining system, and the timely control in the central control room 217 cannot be realized; the central control room 217 can not comprehensively and accurately make judgment and handle operation because of less field monitoring information of the pressure maintaining system; when one pressure maintaining loop component fails, the other pressure maintaining loop can be manually switched to the other pressure maintaining loop on site, and timeliness and convenience cannot be achieved; when the two pressure maintaining loops are switched on site, the air sources of different components are cut off through the switches of a plurality of groups of manual valves, so that the air sources lose or recover functions, the process is complex, and errors are easy to occur.
Aiming at solving the problems, the application provides a pneumatic intelligent pressure maintaining system of a shield machine, and the embodiment of the application is further described below with reference to the accompanying drawings.
Referring to fig. 1, the application provides a pneumatic intelligent pressure maintaining system of a shield machine, which comprises a main control device 111, a pressure maintaining bin 110, a first pressure maintaining loop, a second pressure maintaining loop, a double pneumatic control reversing valve 150 and an air supply device 151; the pressure maintaining bin 110 is connected with the master control device 111; the first pressure-keeping loop comprises a bin pressure setting component, an air inlet and exhaust adjusting component, an adjusting operation device 120 and an air pressure transmitting device 125; the bin pressure setting component is respectively connected with the master control device 111 and the adjusting operation device 120, and the master control device 111 is used for controlling the bin pressure setting component to increase and decrease the preset bin pressure value of the pressure maintaining bin 110; the air inlet and exhaust adjusting component is connected with the pressure maintaining bin 110; the adjusting operation device 120 is respectively connected with the bin pressure setting component and the air inlet and exhaust adjusting component; the air pressure transmitting device 125 is respectively connected with the pressure maintaining bin 110, the adjusting operation device 120 and the master control device 111, and the air pressure transmitting device 125 is used for determining the current pressure value of the pressure maintaining bin 110 and respectively outputting the current pressure value to the adjusting operation device 120 and the master control device 111 so that the adjusting operation device 120 controls the air inlet and outlet adjusting assembly to supplement or exhaust the pressure maintaining bin 110 according to the current pressure value; the second pressure maintaining loop is respectively connected with the main control device 111 and the pressure maintaining bin 110; the double pneumatic control reversing valve 150 is respectively connected with the first pressure maintaining loop, the second pressure maintaining loop and the master control device 111; the air supply device 151 is connected to the double pneumatic control reversing valve 150, and the master control device 111 is further configured to control the air supply device 151 to supply air to the first pressure maintaining circuit through the double pneumatic control reversing valve 150 to drive the first pressure maintaining circuit to enter a working state, or control the air supply device 151 to supply air to the second pressure maintaining circuit through the double pneumatic control reversing valve 150 to drive the second pressure maintaining circuit to enter a working state.
In some embodiments, the first voltage-maintaining circuit further includes a second pneumatic pressure transmitting device 116 and a third pneumatic pressure transmitting device 124, one end of the second pneumatic pressure transmitting device 116 is connected with the pressure maintaining cabin 110, the other end of the second pneumatic pressure transmitting device 116 is connected with the master control device 111, one end of the third pneumatic pressure transmitting device 124 is respectively connected with the pneumatic pressure transmitting device 125 and the adjusting operation device 120, and the other end of the third pneumatic pressure transmitting device 124 is connected with the master control device 111.
The pneumatic intelligent pressure maintaining system of the shield machine is applied to the slurry shield machine; in other embodiments, the pneumatic intelligent pressure maintaining system of the shield tunneling machine can be applied to other shield tunneling machines, and the embodiment of the application is not limited in this respect.
It should be noted that two pressure-maintaining circuits, namely a first pressure-maintaining circuit and a second pressure-maintaining circuit, are symmetrically arranged at two sides of the air supply device 151 and the alarm device 160, and the number of the bin pressure setting component, the air inlet and outlet adjusting component, the adjusting computing device 120 and the air pressure transmitting device 125 corresponds to the number of the pressure-maintaining circuits.
Compared with the related art, the application increases the connection between the main control device 111 and the first pressure maintaining loop and the second pressure maintaining loop at the same time without reducing the original information points between the central control room and the pressure maintaining system, so that the first pressure maintaining loop and the second pressure maintaining loop can be remotely controlled by the main control device 111, more information is provided for the main control device 111, and the automation degree and the operation convenience of the pneumatic intelligent pressure maintaining system of the shield machine are enhanced.
It should be noted that, the pneumatic pressure transmitting device 125 is an air pressure transmitting device, the master control device 111 is a central control room, the air pressure transmitting device 125 detects a current pressure value in the pressure maintaining bin 110 and transmits the current pressure value to the adjusting operation device 120, the adjusting operation device 120 receives the current pressure value and performs proportional integral operation according to the current pressure value and a preset bin pressure value, generates an instruction control signal, and transmits the instruction control signal to the air inlet and outlet adjusting component, the air inlet and outlet adjusting component receives the instruction control signal and performs a filling or discharging operation on the pressure maintaining bin 110 according to the instruction control signal, so as to realize automatic pressure maintaining on the pressure maintaining bin 110, and the air pressure transmitting device transmits the transmitted current pressure value to the master control device 111.
It should be noted that, the bin pressure setting component may selectively set the bin pressure on site, and feed back the state information of the first voltage-maintaining loop to the master control device 111, or the bin pressure setting component may selectively send a bin pressure setting instruction to the bin pressure setting component remotely through the master control device 111, where the bin pressure setting component performs an operation of increasing or decreasing the bin pressure preset value according to the bin pressure setting instruction, and the bin pressure setting component sends the modified bin pressure preset value to the adjustment computing device 120.
It should be noted that, the master control device 111 sends a loop switching instruction to the double-pneumatic control reversing valve 150, and the double-pneumatic control reversing valve 150 controls the air supply device 151 to supply air to the first pressure maintaining loop or the second pressure maintaining loop according to the loop switching instruction so as to drive the first pressure maintaining loop to enter a working state, and the second pressure maintaining loop stops supplying air and enters a waiting working state; or the driving is stopped to supply air to the first pressure maintaining loop, and the switching is performed to supply air to the second pressure maintaining loop, so that the second pressure maintaining loop enters a working state, and the pressure maintaining bin 110 is maintained.
In the tunneling process of the shield machine, the pressure of the tunneling surface changes due to the distance between the tunneling surface and the ground and the soil property changes, and in order to prevent the ground from collapsing or roof falling, the pressure of the pressure maintaining bin 110 needs to follow the changes in real time to be balanced with the pressure of the tunneling surface. Therefore, the pressure maintaining system is an important component part of the shield machine and is an important factor for ensuring the normal operation of the shield machine, and the pressure maintaining system comprises two sets of pressure maintaining component loops and is used for one. When one loop fails, the shield machine needs to be quickly switched to the other loop, so that the shield machine can work normally and uninterruptedly, and meanwhile, the shield machine is convenient to check and maintain.
In the application, the bin pressure setting component is controlled by the master control device 111 to increase or decrease the preset value of the bin pressure of the pressure maintaining bin 110 so as to realize the remote setting of the preset value of the bin pressure by the master control device 111; the air pressure transmitting device 125 is used for determining a current pressure value of the pressure maintaining bin 110, and outputting the current pressure value to the adjusting operation device 120 and the master control device 111 respectively, so that the adjusting operation device 120 controls the air inlet and air outlet adjusting assembly to perform the filling or air outlet operation on the pressure maintaining bin 110 according to the current pressure value, and the air pressure transmitting device 125 is also used for outputting the current bin pressure value of the pressure maintaining bin 110 subjected to the filling or air outlet operation to the master control device 111, so as to realize the pressure maintaining function of the current pressure maintaining loop on the pressure maintaining bin 110; the master control device 111 is further configured to control the air supply device 151 to supply air to the first pressure maintaining loop through the double air control reversing valve 150 to drive the first pressure maintaining loop to enter a working state, or control the air supply device 151 to supply air to the second pressure maintaining loop through the double air control reversing valve 150 to drive the second pressure maintaining loop to enter a working state, and control the air supply device 151 to switch between a main pipeline air source and a non-air source for the first pressure maintaining loop and the second pressure maintaining loop through the double air control reversing valve 150, so as to switch the pressure maintaining operation of the first pressure maintaining loop and the second pressure maintaining loop to the pressure maintaining bin 110. By the arrangement, the information intercommunication between the shield machine pressure-maintaining loop and the master control device 111 is improved, the automation degree of the shield machine pneumatic pressure-maintaining system is further improved, and the labor cost is reduced.
Referring to fig. 1, 3 to 4, it can be understood that the cabin pressure setting assembly includes a first pneumatic button 131, a second pneumatic button 132, a pulse pressure regulator 130 and a first pneumatic pressure transmitting device 133, one end of the pulse pressure regulator 130 is respectively connected with the first pneumatic button 131 and the second pneumatic button 132, the other end of the pulse pressure regulator 130 is respectively connected with the adjusting operation device 120 and the first pneumatic pressure transmitting device 133, the first pneumatic pressure transmitting device 133 is connected with the master control device 111, the pulse pressure regulator 130 is used for increasing or decreasing the preset cabin pressure value of the pressure maintaining cabin 110 to obtain a current cabin pressure set value, and the current cabin pressure set value is transmitted to the master control device 111 through the first pneumatic pressure transmitting device 133.
It should be noted that, by pressing the first pneumatic button 131 and the second pneumatic button 132, the pulse pressure regulator 130 is controlled to increase or decrease the preset value of the pressure maintaining bin 110, so as to obtain the current bin pressure set value, and the current bin pressure set value is sent to the regulating operation device 120 and is sent to the master control device 111 through the first pneumatic pressure transmitting device 133, so as to set the preset value of the pressure maintaining bin 110 in situ.
Referring to fig. 1 and 4, it may be understood that the cabin pressure setting assembly further includes a first electrical converter 136 and a second electrical converter 137, where the first electrical converter 136 is connected to the pulse pressure regulator 130 and the master control device 111, and the second electrical converter 137 is connected to the pulse pressure regulator 130 and the master control device 111, and the master control device 111 is further configured to control the pulse pressure regulator 130 to increase or decrease the preset cabin pressure value of the pressure maintaining cabin 110 through the first electrical converter 136 and the second electrical converter 137, obtain the current cabin pressure set value, and transmit the current cabin pressure set value to the master control device 111 through the first air voltage transmitting device 133.
The master control device 111 sends a cabin pressure setting instruction to the pulse pressure regulator 130 remotely through the first electrical converter 136 and the second electrical converter 137, the pulse pressure regulator 130 performs an increasing and decreasing operation on a preset cabin pressure value of the pressure maintaining cabin 110 according to the cabin pressure setting instruction to obtain a current cabin pressure set value, and the current cabin pressure set value is sent to the adjustment computing device 120 and is sent to the master control device 111 through the first pneumatic power transmitting device 133, so that the preset cabin pressure value of the pressure maintaining cabin 110 is set remotely through the master control device 111.
Referring to fig. 1, it may be understood that the cabin pressure setting assembly further includes a multiple-way selection reversing assembly 134 and a first gas-electric converter 135, where the first gas-electric converter 135 is connected to the multiple-way selection reversing assembly 134 and the master control device 111, and the multiple-way selection reversing assembly 134 is selectively connected to the first pneumatic button 131, the second pneumatic button 132, the first electric converter 136 and the second electric converter 137, and the multiple-way selection reversing assembly 134 is used for selectively increasing or decreasing the preset value of the cabin pressure of the pressure maintaining cabin 110 by driving the arterial pressure regulator 130 through the first pneumatic button 131 and the second pneumatic button 132, or selectively increasing or decreasing the preset value of the cabin pressure of the pressure maintaining cabin 110 by driving the arterial pressure regulator 130 through the first electric converter 136 and the second electric converter 137.
It should be noted that, setting the preset value of the bin pressure in situ or remotely through the master control device 111 is achieved by setting the multiple-selection reversing component 134, and the state information of the current loop is fed back to the master control device 111 through the first gas-electric converter 135.
Referring to fig. 1, it may be understood that the air intake and exhaust adjusting assembly includes an air intake adjusting mechanism 112 and an exhaust adjusting mechanism 113, the first pressure maintaining circuit further includes an air source input line 114, the air intake adjusting mechanism 112 is respectively connected with the pressure maintaining cabin 110, the adjusting and computing device 120, the double air control reversing valve 150 and the air source input line 114, and the exhaust adjusting mechanism 113 is respectively connected with the pressure maintaining cabin 110, the adjusting and computing device 120 and the double air control reversing valve 150.
The air source input line 114 is provided with an air source pressure reducing valve 117, the air source supplements air to the pressure maintaining cabin 110 through the air inlet adjusting mechanism 112, and when the current pressure value in the pressure maintaining cabin 110 is higher than the set value, the air is exhausted to the outside through the air exhaust adjusting mechanism 113.
Referring to fig. 1 and 4, it can be understood that the first pressure-maintaining circuit further includes a single-path pneumatic control reversing valve 121 and a constant pressure reducing valve 122, the single-path pneumatic control reversing assembly is selectively connected with the adjusting operation device 120 and the constant pressure reducing valve 122 respectively, and the single-path pneumatic control reversing assembly is further connected with the double-pneumatic control reversing valve 150, the air inlet adjusting mechanism 112 and the air outlet adjusting mechanism 113 respectively.
It should be noted that, when the current first pressure-maintaining circuit is in the working state, the one-way pneumatic control reversing valve 121 switches the air path to the output end of the adjustment computing device 120, otherwise, switches to the output port of the constant pressure reducing valve 122.
It should be noted that, after the pressure maintaining operation of the pressure maintaining bin 110 is switched to the first pressure maintaining loop, the working status indicator 140 of the first pressure maintaining loop is turned on, and the working status of the first pressure maintaining loop is sent to the master control device 111 through the third gas-electric converter 141, meanwhile, the single-path gas control reversing valve 121 switches the gas path to the output port of the adjusting operation device 120, the single-path gas control reversing valve 121 of the second pressure maintaining loop switches the gas path to the output port of the constant pressure reducing valve 122, at this time, the signals of the air inlet adjusting mechanism 112 and the air outlet adjusting mechanism 113 of the second pressure maintaining loop are determined by the constant pressure reducing valve 122, so as to ensure that the valves are all in a closed state, thereby realizing one-key switching.
Referring to fig. 1 and 3 to 4, it may be understood that the shield tunneling machine pneumatic intelligent pressure maintaining system further includes an alarm device 160, the first pressure maintaining circuit further includes an air pressure monitoring mechanism 161, a fault indicator 162, an acoustic alarm 163, a third electrical converter 164 and a second electrical converter 165, one end of the air pressure monitoring mechanism 161 is connected to the first pressure maintaining circuit, the other end of the air pressure monitoring mechanism 161 is connected to the alarm device 160, the alarm device 160 is respectively connected to the fault indicator 162, the acoustic alarm 163, the second electrical converter 165 and the third electrical converter 164, the second electrical converter 165 is further connected to the fault indicator 162 and the master control device 111, and the third electrical converter 164 is further connected to the master control device 111.
It should be noted that, the air pressure of the first pressure-keeping circuit is detected in real time by the air pressure monitoring mechanism 161, when the air pressure is too low, the alarm device 160 lights the fault indicator 162 of the first pressure-keeping circuit, and simultaneously sends alarm information to the master control device 111 through the second gas-electric converter 165, the on-site sound alarm indication is made through the sound alarm member 163, and when the alarm occurs, the instruction of the master control device 111 can be received through the third electric converter 164 to make clear sound alarm, so that the on-site personnel can conveniently check the fault.
Referring to fig. 1 and 3, it can be understood that the pneumatic intelligent pressure maintaining system of the shield tunneling machine further includes a third pneumatic button 166, the third pneumatic button 166 is connected with the alarm device 160, and the third pneumatic button 166 is used for turning off the warning signal of the audible alarm 163.
It should be noted that, by providing the third pneumatic button 166, the staff can realize clear sound alarm through the third pneumatic button 166 on site, so as to facilitate the troubleshooting of the staff on site.
Referring to fig. 1, 3 to 4, it can be understood that the first pressure maintaining circuit further includes a fourth pneumatic button 152 and a fourth electrical converter 153, one end of the fourth pneumatic button 152 is connected to the dual pneumatic reversing valve 150, the other end of the fourth pneumatic button 152 is connected to the master control device 111 through the fourth electrical converter 153, and the fourth pneumatic button 152 is used for controlling whether the dual pneumatic reversing valve 150 is connected to the first pressure maintaining circuit.
It should be noted that, the first pressure maintaining loop may be put into a working state in situ by pressing the fourth pneumatic button 152, the second pressure maintaining loop may be put into a standby state, and a pulse signal representing a loop switching command of the master control device 111 is received by the fourth electric converter 153 and sent to the dual pneumatic reversing valve 150, so as to realize switching of the remote pressure maintaining loop.
Referring to fig. 1, 3 to 6, it can be understood that the pneumatic intelligent pressure maintaining system of the shield machine further includes an integrated control cabinet 170, and the master control device 111, the cabin pressure setting assembly, the air intake and exhaust adjusting assembly, the adjusting operation device 120, the second pressure maintaining loop, the double pneumatic reversing valve 150 and the air supply device 151 are all disposed in the integrated control cabinet 170.
It should be noted that, the first pressure keeping circuit further includes an operation indicator 123, one end of the operation indicator 123 is connected to the adjusting and calculating device 120 and the air pressure transmitting device, the other end of the operation indicator 123 is connected to the pulse pressure regulator 130, and the operation indicator 123 is used for displaying the preset value of the current cabin pressure and the actual current pressure value.
The number of the pressure maintaining circuits including the first pressure maintaining circuit and the second pressure maintaining circuit, the adjustment computing device 120, the first pneumatic button 131, the second pneumatic button 132, the pulse pressure adjuster 130, the first pneumatic pressure transmitting device 133, the first electric converter 136, the second electric converter 137, the multiple-selection reversing component 134, the first pneumatic converter 135, the single-circuit pneumatic reversing valve 121, the constant pressure reducing valve 122, the air pressure monitoring mechanism 161, the fault indicator 162, the audible alarm 163, the third electric converter 164, the second pneumatic converter 165, the fourth pneumatic button 152, the fourth electric converter 153, the air pressure transmitting device 125, the air intake adjusting mechanism 112, the air exhaust adjusting mechanism 113, the air source reducing valve 117, and the air source input line 114 corresponds to the number of the pressure maintaining circuits.
Specifically, the dual pneumatic reversing valve 150, the air supply device 151, the alarm device 160, the third pneumatic button 166, the adjustment operation device 120 in the first pressure maintaining loop, the first pneumatic button 131, the second pneumatic button 132, the pulse pressure regulator 130, the first pneumatic power transmitting device 133, the first electrical converter 136, the second electrical converter 137, the multiple-path selection reversing component 134, the first pneumatic converter 135, the single-path pneumatic reversing valve 121, the fixed-value reducing valve 122, the air pressure monitoring mechanism 161, the fault indicator 162, the audible alarm 163, the third electrical converter 164, the second pneumatic converter 165, the fourth pneumatic button 152 and the fourth electrical converter 153, and devices corresponding to the first pressure maintaining loop in the second pressure maintaining loop are integrated into a cabinet body of the integrated control cabinet 170, and the external air channel and the electric air channel interface 171 are uniformly arranged below the cabinet body of the integrated control cabinet 170 (in and out of the lower part), so that intelligent pressure maintaining is realized, and the on-site installation and operation are convenient.
In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the application, such changes and modifications are also intended to be within the scope of the application.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a shield constructs pneumatic intelligent pressurize system which characterized in that includes:
a master control device;
the pressure maintaining bin is connected with the master control device;
the first pressure-maintaining loop comprises a bin pressure setting assembly, an air inlet and exhaust adjusting assembly, an adjusting operation device and an air pressure transmitting device; the bin pressure setting assembly is respectively connected with the master control device and the adjusting operation device, and the master control device is used for controlling the bin pressure setting assembly to increase and decrease the bin pressure preset value of the pressure maintaining bin; the air inlet and exhaust adjusting component is connected with the pressure maintaining bin; the adjusting operation device is respectively connected with the bin pressure setting assembly and the air inlet and exhaust adjusting assembly; the air pressure transmitting device is respectively connected with the pressure maintaining bin, the adjusting operation device and the master control device, and is used for determining the current pressure value of the pressure maintaining bin and outputting the current pressure value to the adjusting operation device and the master control device respectively so that the adjusting operation device controls the air inlet and air outlet adjusting assembly to supplement or exhaust the pressure maintaining bin according to the current pressure value;
the second pressure maintaining loop is respectively connected with the master control device and the pressure maintaining bin;
the double pneumatic control reversing valve is respectively connected with the first pressure maintaining loop, the second pressure maintaining loop and the master control device;
the air supply device is connected with the double air control reversing valve, and the master control device is further used for controlling the air supply device to supply air to the first pressure maintaining loop through the double air control reversing valve so as to drive the first pressure maintaining loop to enter a working state, or controlling the air supply device to supply air to the second pressure maintaining loop through the double air control reversing valve so as to drive the second pressure maintaining loop to enter the working state.
2. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 1, wherein the cabin pressure setting assembly comprises a first pneumatic button, a second pneumatic button, a pulse pressure regulator and a first pneumatic pressure transmitting device, one end of the pulse pressure regulator is respectively connected with the first pneumatic button and the second pneumatic button, the other end of the pulse pressure regulator is respectively connected with the adjusting operation device and the first pneumatic pressure transmitting device, the first pneumatic pressure transmitting device is connected with the master control device, and the pulse pressure regulator is used for increasing and decreasing a preset cabin pressure value of the pressure maintaining cabin to obtain a current cabin pressure set value and transmitting the current cabin pressure set value to the master control device through the first pneumatic pressure transmitting device.
3. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 2, wherein the cabin pressure setting assembly further comprises a first electrical converter and a second electrical converter, the first electrical converter is respectively connected with the pulse pressure regulator and the master control device, the second electrical converter is respectively connected with the pulse pressure regulator and the master control device, and the master control device is further used for controlling the pulse pressure regulator to increase or decrease a preset cabin pressure value of the pressure maintaining cabin through the first electrical converter and the second electrical converter to obtain a current cabin pressure set value and transmitting the current cabin pressure set value to the master control device through the first pneumatic pressure transmitting device.
4. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 3, wherein the cabin pressure setting assembly further comprises a multi-path selection reversing assembly and a first gas-electric converter, the first gas-electric converter is respectively connected with the multi-path selection reversing assembly and the master control device, the multi-path selection reversing assembly is respectively and selectively connected with the first pneumatic button, the second pneumatic button, the first electric converter and the second electric converter, and the multi-path selection reversing assembly is used for selectively driving the pulse pressure regulator to increase or decrease the preset cabin pressure value of the pressure maintaining cabin through the first pneumatic button and the second pneumatic button or driving the pulse pressure regulator to increase or decrease the preset cabin pressure value of the pressure maintaining cabin through the first electric converter and the second electric converter.
5. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 1, wherein the air inlet and air outlet adjusting assembly comprises an air inlet adjusting mechanism and an air outlet adjusting mechanism, the first pressure maintaining loop further comprises an air source input pipeline, the air inlet adjusting mechanism is respectively connected with the pressure maintaining bin, the adjusting operation device, the double air control reversing valve and the air source input pipeline, and the air outlet adjusting mechanism is respectively connected with the pressure maintaining bin, the adjusting operation device and the double air control reversing valve.
6. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 5, wherein the first pressure maintaining loop further comprises a single-path pneumatic control reversing valve and a constant-value pressure reducing valve, the single-path pneumatic control reversing assembly is selectively connected with the adjusting operation device and the constant-value pressure reducing valve respectively, and the single-path pneumatic control reversing assembly is further connected with the double-pneumatic control reversing valve, the air inlet adjusting mechanism and the air outlet adjusting mechanism respectively.
7. The shield machine pneumatic intelligent pressure maintaining system according to claim 1, further comprising an alarm device, wherein the first pressure maintaining loop further comprises an air pressure monitoring mechanism, a fault indicator lamp, an acoustic alarm piece, a third electric converter and a second electric converter, one end of the air pressure monitoring mechanism is connected with the first pressure maintaining loop, the other end of the air pressure monitoring mechanism is connected with the alarm device, the alarm device is respectively connected with the fault indicator lamp, the acoustic alarm piece, the second electric converter and the third electric converter, the second electric converter is further connected with the fault indicator lamp and the total control device, and the third electric converter is further connected with the total control device.
8. The shield tunneling machine pneumatic intelligent pressure maintaining system of claim 7, further comprising a third pneumatic button, wherein the third pneumatic button is connected with the alarm device and is used for closing the warning signal of the audible alarm.
9. The shield tunneling machine pneumatic intelligent pressure maintaining system according to claim 1, wherein the first pressure maintaining circuit further comprises a fourth pneumatic button and a fourth electrical converter, one end of the fourth pneumatic button is connected with the double pneumatic control reversing valve, the other end of the fourth pneumatic button is connected with the master control device through the fourth electrical converter, and the fourth pneumatic button is used for controlling whether the double pneumatic control reversing valve is connected with the first pressure maintaining circuit.
10. The shield tunneling machine pneumatic intelligent pressure maintaining system according to any one of claims 1-9, further comprising an integrated control cabinet, wherein the cabin pressure setting assembly, the adjusting operation device, the second pressure maintaining loop, the double pneumatic control reversing valve and the air supply device are all disposed in the integrated control cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311109749.5A CN117005880A (en) | 2023-08-31 | 2023-08-31 | Pneumatic intelligent pressure maintaining system of shield tunneling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311109749.5A CN117005880A (en) | 2023-08-31 | 2023-08-31 | Pneumatic intelligent pressure maintaining system of shield tunneling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117005880A true CN117005880A (en) | 2023-11-07 |
Family
ID=88569114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311109749.5A Pending CN117005880A (en) | 2023-08-31 | 2023-08-31 | Pneumatic intelligent pressure maintaining system of shield tunneling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117005880A (en) |
-
2023
- 2023-08-31 CN CN202311109749.5A patent/CN117005880A/en active Pending
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