CN216811688U - Full-electric-control intelligent interconnected shield pressure maintaining system - Google Patents
Full-electric-control intelligent interconnected shield pressure maintaining system Download PDFInfo
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- CN216811688U CN216811688U CN202122943474.8U CN202122943474U CN216811688U CN 216811688 U CN216811688 U CN 216811688U CN 202122943474 U CN202122943474 U CN 202122943474U CN 216811688 U CN216811688 U CN 216811688U
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Abstract
The utility model relates to a full-electric-control intelligent interconnected shield pressure maintaining system which mainly comprises a compressed air unit, an air storage container, an air inlet pipeline, a muddy water bin and an air outlet pipeline, wherein the compressed air unit is used for being connected with the air storage container to supply compressed air to the air storage container; the utility model also comprises a microcomputer and a data acquisition and transmission terminal, wherein the microcomputer is connected with the pressure sensor and the harmful gas monitoring sensor in a sampling way, the microcomputer controls and is connected with the air inlet valve and the exhaust valve, and the microcomputer is electrically connected with the data acquisition and transmission terminal and is used for acquiring and transmitting construction data of the pressure maintaining system to the large construction data platform, so that data interaction between the system and the large external construction data platform is realized, and the full-electric-control intelligent interconnected shield pressure maintaining system with higher intelligent and informatization level is provided.
Description
Technical Field
The utility model relates to the technical field of shield tunneling, in particular to a full-electric-control intelligent interconnected shield pressure maintaining system.
Background
The shield is widely applied to the construction of engineering fields such as highways, railways, subways and the like due to the advantages of high construction speed and good safety, and shield tunnels with strict underwater or sedimentation requirements generally need slurry shield construction. As a core system of the slurry shield, the adjustment precision of the slurry pressure by the slurry shield pressure maintaining system is related to the stability of a working surface and the surface settlement amount, and the reliability and the stability of the slurry shield pressure maintaining system directly influence the construction safety and the construction quality. With the intelligent development of shield equipment, the requirements on a shield pressure maintaining system are gradually improved, the intelligent interconnection function cannot be realized by the existing shield pressure maintaining system, the function is single, the system is closed, and the informatization and the intellectualization of the shield pressure maintaining system are not favorably realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a full-electric-control intelligent interconnected shield pressure maintaining system which can solve the technical problems of single function and closed system of the existing shield pressure maintaining system.
The utility model provides the following technical scheme: a full-electric-control intelligent interconnected shield pressure maintaining system mainly comprises a compressed air unit, an air storage container, an air inlet pipeline, a muddy water bin and an air exhaust pipeline, wherein the compressed air unit comprises an air compressor and is used for being connected with the air storage container to supply compressed air to the air storage container;
the system is characterized by further comprising a microcomputer and a data acquisition and transmission terminal, wherein the microcomputer is connected with a pressure sensor and a harmful gas monitoring sensor in a sampling mode, the microcomputer is connected with an air inlet valve and an exhaust valve in a control mode, and the microcomputer is electrically connected with the data acquisition and transmission terminal and used for transmitting construction data of the pressure maintaining system to a large construction data platform.
Has the beneficial effects that: according to the full-electric-control intelligent interconnected shield pressure maintaining system, a microcomputer calculates according to a set value of the pressure of a muddy water bin and an input value of a pressure sensor, and outputs a pulse signal to control the opening of an air inlet valve and an air outlet valve adjusting valve so as to adjust the pressure in the muddy water bin; the gas concentration that has gas monitoring sensor collection simultaneously, the pressurize system construction data such as will adjust data, detection data send to the big data platform of construction of record construction data through data acquisition transmitting terminal, store pressurize system construction data, and microcomputer has certain analysis early warning function: for example, the early warning message is pushed, and the construction safety is improved. According to the utility model, information is transmitted through electric signals, the data barriers of the shield pressure maintaining system, other systems in the shield and the big data cloud platform are broken, accurate control of the pressure of the slurry cabin is realized, meanwhile, construction data of the pressure maintaining system are uploaded in real time, data interconnection and intercommunication are realized, and the method has important significance for improving the information degree of the shield pressure maintaining system, improving the intelligent level of equipment and prolonging the service life.
Furthermore, valve intelligent positioners are installed in the air inlet valve and the exhaust valve, and the valve intelligent positioners control the valves to execute corresponding opening degrees according to electric signals output by the microcomputer and transmit the motion amount of valve cores of the valves to the microcomputer through the electric signals.
Has the advantages that: set up the valve locator, on the one hand can guarantee to accept the signal of telecommunication, the normal implementation of output control signal function, on the other hand, can transmit valve case amount of exercise (case turned angle or case displacement volume) for microcomputer, microcomputer compares the pulse signal that actuating element (admission valve, discharge valve) received with actual case amount of exercise, surpass and set for the deviation scope after reminding operating personnel to inspect the valve with warning information, be favorable to in time discovering the problem when equipment trouble or procedure error, guarantee the normal pressurize work of system.
Furthermore, the gas storage container comprises a plurality of single gas storage containers arranged in parallel, and the gas inlet end of each single gas storage container is provided with a single switch valve.
Has the advantages that: the plurality of single gas storage containers are arranged, the gas storage containers are conveniently arranged in the shield tunneling machine on the basis of ensuring the large whole gas storage volume, and the gas storage containers are more flexibly distributed and arranged. In addition, the whole volume of the air storage container can be changed in a grading way, and the use mode is diversified.
Further, the pressure sensor is provided in plurality.
Has the advantages that: all pressure sensors are arranged at positions close to each other in the muddy water bin, the microcomputer can reduce pressure information acquisition errors according to data transmitted by a plurality of groups of pressure sensors, and the pressure information acquisition errors can be found in time when one of the pressure sensors makes mistakes, so that the reliability of data acquisition is improved.
Furthermore, the compressed air unit also comprises an oil-gas filter, an oil-water filter, a dryer and an air filter which are positioned at the downstream of the air compressor.
Has the advantages that: compressed air generated by the air compressor is fully filtered, and blockage or oil-water deposition in a pipeline is prevented.
Furthermore, the full-electric-control intelligent interconnected shield pressure maintaining system further comprises a UPS (uninterrupted power supply) and a diesel generating set, wherein the UPS is respectively connected with the microcomputer, the air inlet valve, the exhaust valve, the pressure sensor, the harmful gas monitoring sensor and the data acquisition and transmission terminal, and the diesel generating set is respectively connected with the UPS, the microcomputer, the air inlet valve, the exhaust valve, the harmful gas monitoring sensor, the pressure sensor, the data acquisition and transmission terminal and the compressed air unit.
Has the advantages that: all parts are powered by the shield machine in daily conditions, when the shield machine is powered off, the UPS power supply is started to supply power to the key execution and monitoring parts, and after the diesel generating set is started, the diesel generating set simultaneously supplies power to all the parts and charges the UPS power supply for the next power off; the temporary power supply mode is ingenious in design, the characteristics of high power supply speed, low power consumption of the UPS power supply, slow starting of the diesel generating set and sustainable power supply are reasonably utilized, and the continuous work of the shield pressure maintaining system is guaranteed.
Drawings
FIG. 1 is a system schematic diagram of an embodiment 1 of an all-electrically-controlled intelligent interconnected shield pressure maintaining system according to the present invention;
reference numerals: 1-a compressed air unit; 2-gas storage container; 3-a first on-off valve; 4-self-operated pressure regulating valve; 5-a second on-off valve; 6-a third on-off valve; 7-a first intake valve; 8-a second intake valve; 9-a muddy water bin; 10-harmful gas monitoring sensor; 11-a pressure sensor; 12-a fourth switching valve; 13-a fifth on-off valve; 14-a first exhaust valve; 15-a second exhaust valve; 16-a data acquisition and transmission terminal; 17-constructing a big data platform; 18-a microcomputer; 19-a UPS power supply; 20-a display; 21-an air compressor; 22-oil and gas filter; 23-oil water filter.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
The specific embodiment 1 of the fully-electrically-controlled intelligent interconnected shield pressure maintaining system of the utility model comprises the following steps:
as shown in fig. 1, the present invention includes a compressed air unit 1, an air storage container 2, a first air intake pipeline, a second air intake pipeline, a muddy water bin 9, a first exhaust pipeline, and a second exhaust pipeline. The compressed air unit 1 is mainly composed of an air compressor 21, an oil gas filter 22 and an oil water filter 23, and in other embodiments, the compressed air unit may further include a dryer and an air filter for achieving a better filtering effect. The compressed air unit 1 is connected to an air inlet end of the air container 2, and is used to supply filtered compressed air into the air container 2. The air outlet end of the air storage container 2 is connected with the muddy water bin 9 through a first air inlet pipeline, a second air inlet pipeline is connected in parallel with the first air inlet pipeline, a first switch valve 3 and a self-operated pressure regulating valve 4 are arranged at the upstream position of the second air inlet pipeline on the first air inlet pipeline, and the self-operated pressure regulating valve 4 can regulate the pressure behind the valve according to the working pressure interval of the muddy water bin, so that the functions of reducing and stabilizing the pressure are achieved. And a second switch valve 5 and a first air inlet valve 7 are arranged on the first air inlet pipeline at the downstream positions of the first switch valve 3 and the self-operated pressure regulating valve 4, and a third switch valve 6 and a second air inlet valve 8 which are mutually connected with the second switch valve 5 and the first air inlet valve 7 in parallel are arranged on the second air inlet pipeline. In this embodiment, the first and second intake pipes constitute an intake pipe, the first and second exhaust pipes constitute an intake pipe, the first and second intake valves constitute intake valves, and the first and second exhaust valves constitute exhaust valves.
The air outlet end of the muddy water bin 9 is connected with a first exhaust pipe, the second exhaust pipe is connected on the second exhaust pipe in parallel, the first exhaust pipe is provided with a fourth switch valve 12 and a first exhaust valve 14, the second exhaust pipe is provided with a fifth switch valve 13 and a second exhaust valve 15, and the fourth switch valve 12, the first exhaust valve 14, the fifth switch valve 13 and the second exhaust valve 15 are connected in parallel. The muddy water bin 9 is provided with a channel for CH pair respectively4The harmful gas monitoring sensor 10 is used for measuring the pressure in the muddy water bin, and the harmful gas monitoring sensor 10 has a buzzing alarm function and gives an alarm through a buzzer when the concentration of the harmful gas exceeds an upper limit value.
The full-electric-control intelligent interconnected shield pressure maintaining system further comprises a microcomputer 18, a display 20 and a data acquisition and transmission terminal 16, wherein the microcomputer 18 is used as a processing center and is electrically connected with the harmful gas monitoring sensor 10, the pressure sensor 11, the first air inlet valve 7, the second air inlet valve 8, the first exhaust valve 14, the second exhaust valve 15, the display 20 and the data acquisition and transmission terminal 16 respectively. The microcomputer 18 performs control operation according to the pressure electric signal measured by the pressure sensor 11 and the set value of the muddy water cabin pressure, sends out pulse signals to control the first air inlet valve 7, the second air inlet valve 8, the first exhaust valve 14 and the second exhaust valve 15 to adjust the valve opening, and the data is displayed by the display 20. Because the first air inlet valve 7, the second air inlet valve 8, the first exhaust valve 14 and the second exhaust valve 15 are all internally provided with the intelligent valve positioners which can receive the electric signals sent by the microcomputer and control the valves to execute corresponding opening degrees, and transmits the valve core movement amount (valve core displacement amount or valve core rotation angle) of the valve to the microcomputer 18 through an electric signal for feedback, therefore, when the microcomputer controls the actuating elements (the first and second air inlet valves and the first and second exhaust valves) to adjust the pressure of the muddy water bin, the actual motion amount of the valve core of the valve can be received, the expected motion amount (the motion amount of the valve core corresponding to the output pulse) of the valve core is compared with the fed back actual motion amount of the valve core and is displayed by the display 20, and if the error between the expected motion amount and the actual motion amount of the actuating element is found to exceed 5%, an operator inspects the corresponding actuating element. In addition, when the concentration of the harmful gas exceeds the standard, the microcomputer 18 sends out warning information through the display screen according to the transmission signal of the harmful gas monitoring sensor 10.
In this embodiment, the gas container 2 includes a plurality of single gas containers (not shown) arranged in parallel, and a single switch valve (not shown) is disposed at the gas inlet end of each single gas container; the structure can reduce the volume requirement of the single gas storage container, the gas storage containers are more flexibly distributed in the shield machine, and the field construction requirement is more easily met; on the other hand, the total volume of the air storage container can be changed in a grading way, so that the use is more convenient; in addition, the impact of individual monomer gas containers in the event of a leak emergency is minimized. Pressure measurement sensor 11 is equipped with threely, and all pressure sensor 11 install in the muddy water storehouse 9 comparatively close to the position, all transmit pressure information to microcomputer 18, and microcomputer receipt, storage data and carry out the analysis to data, when certain pressure sensor measured value and other pressure sensor measured value errors exceed 2%, the computer reports to the police through display 20, and operating personnel can overhaul this pressure sensor, plays the effect of monitoring measuring element normal work.
The microcomputer 18 can display the data via a display for reference by field personnel. The data acquisition and transmission terminal 16 is internally provided with a 4G/5G communication module, the microcomputer 18 can exchange data with the construction big data platform 17 through the data acquisition and transmission terminal 16, and the construction big data platform can store construction data of the pressure maintaining system in the construction process. The internal data of the utility model is transmitted in the form of electric signals, so that the mutual transmission is convenient; the cloud data storage is realized on the basis of ensuring the pressure maintaining function, the data interconnection between the large construction data platform and the microcomputer is realized, and certain data openness is realized.
The UPS is respectively connected with a microcomputer, a display, a first air inlet valve, a second air inlet valve, a first exhaust valve, a second exhaust valve, a harmful gas monitoring sensor, a pressure sensor and a data acquisition and transmission terminal, and the diesel generator set is respectively connected with the UPS, the microcomputer, the display, the first air inlet valve, the second air inlet valve, the first exhaust valve, the second exhaust valve, the harmful gas monitoring sensor, the pressure sensor, the data acquisition and transmission terminal and a compressed air unit. During daily power supply, all parts (a microcomputer, a display, a first air inlet valve, a second air inlet valve, a first exhaust valve, a second exhaust valve, a harmful gas monitoring sensor, a pressure sensor, a data acquisition and transmission terminal and a compressed air unit) obtain daily power supply through a shield machine; when the shield machine is powered off accidentally, the UPS power supply is started quickly and the time required by the start of the diesel generating set is long, so that the UPS power supply only supplies power temporarily to main detection and execution elements (a microcomputer, a display, a first air inlet valve, a second air inlet valve, a first exhaust valve, a second exhaust valve, a harmful gas monitoring sensor, a pressure sensor and a data acquisition and transmission terminal) to ensure the basic pressure maintaining function; but the UPS power supply has limited electric quantity, and the diesel generator set is used for supplying power to all parts and simultaneously charging the UPS power supply after being started. The temporary power supply mode skillfully utilizes the advantages and disadvantages of the UPS and the diesel generator set, and ensures that the basic functions of the system are not invalid when the power is cut off accidentally.
The specific embodiment 2 of the fully electrically controlled intelligent interconnected shield pressure maintaining system of the utility model is as follows:
different from the embodiment 1, the pressure sensors are provided with four, five or other pressure sensors, and all the pressure sensors are arranged at the closer positions in the muddy water bin.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (6)
1. A full-electric-control intelligent interconnected shield pressure maintaining system is characterized by mainly comprising a compressed air unit, an air storage container, an air inlet pipeline, a muddy water bin and an air exhaust pipeline, wherein the compressed air unit comprises an air compressor and is used for being connected with the air storage container to supply compressed air to the air storage container;
the system is characterized by further comprising a microcomputer and a data acquisition and transmission terminal, wherein the microcomputer is connected with a pressure sensor and a harmful gas monitoring sensor in a sampling mode, the microcomputer is connected with an air inlet valve and an exhaust valve in a control mode, and the microcomputer is electrically connected with the data acquisition and transmission terminal and used for transmitting construction data of the pressure maintaining system to a large construction data platform.
2. The fully-electrically-controlled intelligent interconnected shield pressure maintaining system according to claim 1, wherein intelligent valve positioners are installed in the air inlet valve and the air outlet valve, and control the valves to perform corresponding opening degrees according to electric signals output by the microcomputer, and transmit the motion amount of valve cores of the valves to the microcomputer through the electric signals.
3. The fully electrically controlled intelligent interconnected shield pressure maintaining system according to claim 2, wherein the gas storage container comprises a plurality of single gas storage containers arranged in parallel, and a single switch valve is arranged at the gas inlet end of each single gas storage container.
4. The fully-electrically-controlled intelligent interconnected shield pressure maintaining system according to claim 3, wherein a plurality of pressure sensors are provided.
5. The fully electrically controlled intelligent interconnected shield pressure maintaining system according to any one of claims 1 to 4, wherein the compressed air unit further comprises an oil gas filter, an oil water filter, a dryer and an air filter which are positioned at the downstream of the air compressor.
6. The fully-electrically-controlled intelligent interconnected shield pressure maintaining system according to claim 5, further comprising a UPS and a diesel generator set, wherein the UPS is respectively connected with the microcomputer, the air inlet valve, the exhaust valve, the pressure sensor, the harmful gas monitoring sensor and the data acquisition and transmission terminal, and the diesel generator set is respectively connected with the UPS, the microcomputer, the air inlet valve, the exhaust valve, the harmful gas monitoring sensor, the pressure sensor, the data acquisition and transmission terminal and the compressed air unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943474.8U CN216811688U (en) | 2021-11-29 | 2021-11-29 | Full-electric-control intelligent interconnected shield pressure maintaining system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122943474.8U CN216811688U (en) | 2021-11-29 | 2021-11-29 | Full-electric-control intelligent interconnected shield pressure maintaining system |
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| Publication Number | Publication Date |
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| CN216811688U true CN216811688U (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122943474.8U Active CN216811688U (en) | 2021-11-29 | 2021-11-29 | Full-electric-control intelligent interconnected shield pressure maintaining system |
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| CN (1) | CN216811688U (en) |
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2021
- 2021-11-29 CN CN202122943474.8U patent/CN216811688U/en active Active
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