CN209761698U - Integrated modular group control air compressor optimization system - Google Patents
Integrated modular group control air compressor optimization system Download PDFInfo
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- CN209761698U CN209761698U CN201920407996.6U CN201920407996U CN209761698U CN 209761698 U CN209761698 U CN 209761698U CN 201920407996 U CN201920407996 U CN 201920407996U CN 209761698 U CN209761698 U CN 209761698U
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Abstract
the utility model provides an integrated modularization crowd accuse air compressor machine optimizing system belongs to the air compression field, include: the system comprises a control management device, a master control device, a field device, a network A, a network B and a compressed air main pipe; the control management equipment is connected with the main control equipment through a network A and a network B respectively, the main control equipment is connected with the field equipment through the network A and the network B respectively, and the field equipment is connected with the compressed air main pipe; the utility model discloses can integrate original air compressor machine system, modularization on a large scale to optimize original air compressor machine system, the air compressor machine system after optimizing can realize energy-conserving target, reduce cost, unmanned on duty, this set of integrated modularization crowd accuse air compressor machine optimizing system product reforms transform very little to original air compressor machine system, and the expansibility is very strong, is fit for different air compressor machine system reforms transform.
Description
Technical Field
the utility model belongs to the air compression field, concretely relates to integrated modularization crowd accuse air compressor machine optimizing system.
Background
Compressed air is an important power source. Compared with other energy sources, the energy source has the following obvious characteristics: the air-permeable fire-resistant composite material is clear and transparent, convenient to convey, free of special harmful performance, free of fire danger and overload, capable of working in various adverse environments, and inexhaustible air is available everywhere on the ground.
Along with the continuous development of air compression technology, many enterprises in China pay attention to energy-saving and environment-friendly air compression devices and systems in the current stage, and due to the fact that the scales of the enterprises are different, the air compression devices are different, the field environments are different, the cost requirements are different, the demand for integration modularization of the air compression systems is very urgent, and the enterprises desire a set of air compression systems which are high in transportability, strong in expandability, unattended, energy-saving and environment-friendly, low in cost and small in modification to the original field environments. At present, an air compression system integrating the advantages is not available in the market, and many existing air compression technologies are based on the transformation of the frequency conversion technology, so that the expansibility of the air compression system is greatly limited, and high cost is brought by scale expansion, so that the air compression system is not suitable for the technical transformation of large-scale enterprises.
SUMMERY OF THE UTILITY MODEL
Based on above technical problem not enough, the utility model provides an integrated modularization crowd accuse air compressor machine optimizing system, include: the system comprises a control management device, a master control device, a field device, a network A, a network B and a compressed air main pipe;
the control management equipment is connected with the main control equipment through a network A and a network B respectively, the main control equipment is connected with the field equipment through the network A and the network B respectively, and the field equipment is connected with the compressed air main pipe;
the control management equipment is positioned in the control room, issues a control command to the main control equipment, collects historical operating condition records and provides a summary report for a manager;
the main control equipment is positioned in the electronic room, receives a control instruction issued by the control management equipment and transmits the control instruction to the field equipment, so that the field equipment operates according to the control instruction;
the field devices are located in the field area, receive the control instruction transmitted by the main control device and transmit the control instruction to the air compressor to be optimized, so that the air compressor to be optimized operates according to the control instruction, and if a factory to be optimized has a plurality of field areas, each field area comprises a set of field devices;
The compressed air main pipe collects all compressed air output by the optimized air compressor to the compressed air main pipe, and the compressed air main pipe provides compressed air for an air object;
the network A and the network B are communication networks, and switching between the network A and the network B is carried out according to the use rule of the standby network;
the standby network usage rules are: when the network A fails and communication can not be carried out, switching to a network B, otherwise, carrying out communication by using the network A;
the control management device specifically includes: engineer stations, operator stations, printers;
The main control equipment comprises a main control cabinet;
The field device specifically includes: the system comprises at least one air compressor mechanism cabinet, at least one communication interface device, a remote cabinet and a field instrument;
the field instrument is connected with the remote cabinet, the remote cabinet is connected with the communication interface equipment through a communication cable, and the communication interface equipment is connected with the air compressor mechanism cabinet through a communication cable; the remote cabinet is connected with a first switch through a network A, the remote cabinet is connected with a second switch through a network B, the first switch is connected with the main control cabinet through the network A, the second switch is connected with the main control cabinet through the network B, the first switch is respectively connected with an engineer station, an operation station and a printer through the network A, and the second switch is respectively connected with the engineer station, the operation station and the printer through the network B; the compressed air main pipe is connected with the air compressor mechanism cabinet;
The field instrument detects equipment for various parameters of the integrated modular group control air compressor optimization system in the field and sends detected parameter signals to the communication interface equipment;
the equipment of all kinds of parameters of integrated modularization crowd control air compressor machine optimizing system specifically includes: the device comprises a pressure measuring device, a temperature measuring device, a flow measuring device, an air compressor current signal measuring device and an air compressor voltage signal measuring device; the pressure measuring equipment measures the pressure value in the compressed air main pipe; the temperature measuring equipment measures the temperature value in the compressed air main pipe; the flow measuring equipment measures the flow value in the compressed air main pipe; measuring the current value of each air compressor by air compressor current signal measuring equipment; measuring the voltage value of each air compressor by the air compressor voltage signal measuring equipment;
Measuring signals of the field instrument are all 4-20 mA, the measuring signals are connected to an I/O module in the remote cabinet through a cable, and the I/O module converts the measuring signals into digital signals;
the air compressor machine that awaits measuring and air compressor machine control module have been placed in the air compressor machine mechanism cabinet, await measuring the air compressor machine and be connected with air compressor machine control module, and air compressor machine control module effect does: controlling the starting and stopping operation of the air compressor by adjusting parameters;
The communication interface equipment reads various parameters of the air compressor to be tested from the field instrument, reads a control signal of the air compressor to be tested from the remote cabinet, and transmits the control signal to the air compressor to be tested in the air compressor mechanism cabinet;
the reading of various parameters of the air compressor to be tested comprises the following steps: the temperature alarm method comprises the following steps of (1) alarming according to the operation state of each air compressor, the stop state of each air compressor, the loading state of each air compressor, the unloading state of each air compressor, the current of each air compressor, the outlet pressure of each air compressor and the temperature of each air compressor;
the control signal of the air compressor to be tested comprises: starting control signals of the air compressor, stopping control signals of the air compressor, loading control signals of the air compressor and unloading control signals of the air compressor;
the communication interface equipment is connected with communication interfaces configured for the air compressors in the air compressor mechanism cabinet and communicates in a Modus communication mode, each air compressor is configured with one communication interface equipment, and if N air compressors are correspondingly configured on site, N communication interface equipment are configured;
the remote cabinet plays a role of signal relay between the field instrument and the control cabinet, reads various parameter signals of the field instrument, reads various parameter signals of the air compressor through the communication interface equipment, and sends all the read signals to the main control cabinet;
the remote cabinet comprises: I/O module, communication module, power module and remote cabinet;
A power supply module: the I/O module and the communication module are respectively connected to provide power for the I/O module and the communication module;
I/O module: realize digital signal and analog signal two-way conversion, as required, set for analog signal conversion to digital signal, digital signal conversion to analog signal, switching value signal conversion to digital signal or digital signal conversion to switching value signal, specifically do: setting as required: converting the analog signal transmitted from the communication interface equipment into a digital signal; converting an analog signal transmitted by the field instrument into a digital signal; converting the switching value signal transmitted by the field instrument into a digital signal; or according to the requirement, setting: converting the digital signal transmitted from the communication interface equipment into an analog signal; converting a digital signal transmitted by the field instrument into an analog signal; converting a digital signal transmitted by the field instrument into a switching value signal;
communication module: the remote cabinet is connected with the communication interface equipment to realize communication between the remote cabinet and the communication interface equipment;
Remote cabinet rack: the shell of the remote cabinet plays a role in protecting internal devices;
network A: the first switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer, and switching between the network A and the network B is carried out according to the use rule of the standby network;
and (3) network B: the second switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer to be a standby network, and switching between the network A and the network B is carried out according to the usage rule of the standby network;
the standby network usage rules are: when the network A fails and communication can not be carried out, switching to a network B, otherwise, carrying out communication by using the network A;
The communication medium of the network A and the network B is RJ45 network cable;
a main control cabinet: calculating all signals transmitted by the remote cabinet in real time through air compressor optimization software in a main control cabinet controller to obtain air compressor control signals, and transmitting the control signals to the remote cabinet;
the main control cabinet comprises: the system comprises a main control cabinet power supply module, a controller, a main control cabinet communication module, a first switch, a second switch and a main control cabinet;
the main control cabinet power supply module is respectively connected with the controller, the main control cabinet communication module, the first switch and the second switch and provides power for the controller, the main control cabinet communication module, the first switch and the second switch;
the controller stores air compressor control software, calculates all signals transmitted by the remote cabinet in real time, obtains air compressor control signals and transmits the air compressor control signals to the remote cabinet;
the main control cabinet communication module is used for finishing communication between the main control cabinet and the remote cabinet;
The main control cabinet and the shell of the main control cabinet play a role in protecting internal devices;
The remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the first switch; the first switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the second switch; the second switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
The engineer station is provided with a first industrial personal computer, a first display, a first mouse and a first keyboard, air compressor control signals are combined into an air compressor control database according to time sequence, and historical data, data trend and alarm information reports of the database are obtained; acquiring an air compressor running state monitoring picture through a display;
The operating station comprises a second industrial personal computer, a second display, a second mouse and a second keyboard; the second industrial personal computer issues an air compressor control signal and acquires an air compressor running state monitoring picture through the display;
the printer is used for printing historical data, data trend and alarm information reports of the database;
if the air compressor factory to be optimized has an original monitoring system, which is recorded as an SIS system, the first switch is connected with the monitoring system through a network A, the second switch is connected with the monitoring system through a network B, and the monitoring system can only monitor and cannot perform any operation on other hardware and software.
further, an engineer edits and compiles air compressor optimization software, and after the compilation is finished, the air compressor control software is downloaded to the main control cabinet controller; the air compressor control software comprises: the system comprises a compressed air main pipe pressure calculation and setting module, a compressed air main pipe flow calculation module, a compressed air main pipe pressure open-loop regulation mode module, a compressed air main pipe pressure closed-loop regulation mode module, a pressure regulation algorithm selection module, an automatic start-stop air compressor control module, an air compressor sequence and priority selection module, an automatic loading and unloading air compressor control module, a compressed air main pipe pressure manual automatic control selection module and a manual control air compressor module;
The compressed air main pipe pressure calculation and setting module is connected with a compressed air main pipe pressure manual automatic control selection module, the compressed air main pipe pressure manual automatic control selection module is respectively connected with a pressure regulation algorithm selection module, an air compressor sequence and priority selection module and a manual control air compressor module, the manual control air compressor module is respectively connected with an air compressor start-stop and loading-unloading control module of each air compressor, the air compressor sequence and priority selection module is connected with an automatic start-stop air compressor control module, the automatic start-stop air compressor control module is connected with an automatic loading-unloading air compressor control module, the pressure regulation algorithm selection module is respectively connected with a compressed air main pipe pressure open-loop regulation mode module and a compressed air main pipe pressure closed-loop regulation mode module, the compressed air main pipe pressure open-loop regulation mode module and the compressed air main pipe pressure closed-loop regulation mode module are respectively connected with the automatic start-stop air compressor control module, the compressed air main pipe flow calculation module is connected with the compressed air main pipe pressure open-loop regulation mode module;
the system comprises a compressed air main pipe pressure calculating and setting module, a measuring pressure device, a remote cabinet and a main control cabinet, wherein the pressure value of the compressed air main pipe is acquired by the measuring pressure device and is transmitted to the main control cabinet through the remote cabinet, the number of the measuring pressure devices is 1-3, one of three algorithms, namely a single value algorithm, a mean value algorithm or a three-out-of-center algorithm, is selected and set in the compressed air main pipe pressure calculating and setting module according to the work requirement to be optimized, the final real-time pressure value of the compressed air main pipe is calculated and obtained, and the final real-time pressure value of the compressed air main pipe is transmitted to a compressed air main pipe pressure open-loop adjusting mode module or a compressed air main;
the single-value algorithm selects a certain pressure measuring device for designation, and the pressure value of the compressed air main pipe collected by the pressure measuring device is taken; the average algorithm is used for selecting a certain two pieces of pressure measurement equipment for designation, and taking the average value of the pressure values of the compressed air main pipes collected by the two pieces of pressure measurement equipment; in the third step, the middle values of the pressure values of the compressed air main pipe collected by the three pressure measuring devices are obtained;
the compressed air main pipe flow calculation module is used for measuring a flow value in a compressed air main pipe by a flow measuring device, transmitting the flow value to the main control cabinet through the remote cabinet, taking the flow value in the compressed air main pipe as a feedforward quantity, and transmitting the flow value to the compressed air main pipe pressure open-loop regulation mode module and the compressed air main pipe pressure closed-loop regulation mode module;
the compressed air main pipe pressure open-loop adjusting mode module is used for manually setting an upper limit value and a lower limit value of the main pipe pressure, comparing a real-time pressure value of the compressed air main pipe obtained through calculation with the upper limit value and the lower limit value of the manually set main pipe pressure, and if the real-time pressure value of the compressed air main pipe exceeds the upper limit value of the manually set main pipe pressure, outputting an unloading control instruction to the automatic starting and stopping air compressor control module by the compressed air main pipe pressure open-loop adjusting mode module, transmitting the unloading control instruction to the automatic loading and unloading air compressor control module and automatically unloading K air compressors; if the real-time pressure value of the compressed air main pipe is lower than the lower limit value of the manually set main pipe pressure, the compressed air main pipe pressure open-loop adjusting mode module outputs a starting and loading control instruction to the automatic starting and stopping air compressor control module, and K standby air compressors are started and loaded; the starting and loading K air compressors comprises the following specific processes: if the standby air compressor is detected to be in a standby state, outputting a loading control instruction by using an automatic loading and unloading air compressor control module, and directly loading the standby air compressor;
the compressed air main pipe pressure closed-loop adjusting mode module is used for adjusting an executing mechanism of the running compressor in a closed-loop control mode if the absolute value of the difference value between the real-time pressure of the compressed air main pipe and the manually set main pipe pressure value is larger than a difference value threshold value, so that the real-time pressure of the compressed air main pipe is continuously close to the manually set main pipe pressure value; if the real-time pressure of the compressed air main pipe exceeds a manually set high alarm value, the compressed air main pipe pressure closed-loop regulation mode module sends a stop control instruction to the automatic start-stop air compressor control module, and then the K running air compressors are stopped; and if the real-time pressure of the compressed air main pipe is lower than the manually set low alarm value, the compressed air main pipe pressure closed-loop regulation mode module sends a starting and loading control instruction to the automatic starting and stopping air compressor control module, and K standby air compressors are started and loaded. The starting and loading K air compressors comprises the following specific processes: if the standby air compressor is detected to be in a standby state, outputting a loading control instruction by using an automatic loading and unloading air compressor control module, and directly loading the standby air compressor;
the pressure adjusting algorithm selection module is used for manually setting according to whether the air inlet quantity of the air compressor configured in a factory is adjustable, and if the air inlet quantity of the air compressor is not adjustable, an open-loop adjusting mode module is selected for carrying out pressure control on the main pipe; if the air input of the air compressor is adjustable, a closed-loop adjusting mode module is selected for controlling the pressure of the main pipe;
the system comprises an air compressor sequence and priority selection module, an air compressor controlled by a control optimization system, a control optimization system and a control optimization system, wherein the air compressor sequence and priority selection module is used for manually formulating start or stop, loading or unloading rows of n sets of related compressors according to the start or stop, loading or unloading sequence and switching requirements of related air compressors in a factory so as to automatically execute an air compressor optimization software program;
automatically, open and stop air compressor machine control module, according to the control command that compressed air main pipe pressure open loop adjustment mode module, compressed air main pipe pressure closed loop adjustment mode module and air compressor machine sequence and priority selection module transmission come, if control command is the start-up loading, then carry out following process: if the standby air compressor is detected to be in a standby state, transmitting a loading control instruction to an automatic loading and unloading air compressor control module, outputting the loading control instruction, directly loading the standby air compressor, if the standby air compressor is detected to be in a stop state, firstly using an automatic start-stop air compressor control module to output a start control instruction, starting the standby air compressor, and then outputting the loading control instruction through the automatic loading and unloading air compressor control module to load the standby air compressor; if the control instruction is a stop instruction, outputting a stop control instruction through the automatic start-stop air compressor control module, and stopping the corresponding air compressor; if the control instruction is a loading or unloading instruction, outputting the loading or unloading instruction to the automatic loading and unloading air compressor control module;
the automatic loading and unloading air compressor control module is used for loading or unloading the air compressor according to a loading and unloading control instruction transmitted by the automatic start-stop air compressor control module;
the compressed air main pipe pressure manual and automatic control selection module selects manual input or automatically controls the air compressor main pipe pressure value;
the system comprises a manual control air compressor module, a control system and a control system, wherein the manual control air compressor module is used for manually controlling a single air compressor under an optimization system if the automatic control of the pressure of a compressed air main pipe is not needed, the manual control is realized through an operation station, the single air compressor is started/stopped, and the loading pressure and the unloading pressure are manually set for the single air compressor;
The air compressor starting, stopping, loading and unloading control module receives signals of an automatic control air compressor and a manual control air compressor transmitted by the manual control air compressor module and directly drives the air compressor to start, stop or load and unload;
if a fault of abnormal data transmission occurs, the integrated modularized group control air compressor optimization system can perform the following actions according to the fault type:
the communication interface is in fault, and the air compressor corresponding to the communication interface in fault is automatically switched to local control;
the remote station fails, and all air compressors corresponding to the failed remote station interface are automatically switched to be controlled on site;
When the main control cabinet fails, all air compressors are controlled on site;
and both the network A and the network B have faults, and all the air compressors are switched to be controlled on site.
The beneficial technical effects are as follows:
the utility model provides an integrated modularization crowd accuse air compressor machine optimizing system can integrate original air compressor machine system, modularization on a large scale to optimize original air compressor machine system, the air compressor machine system after optimizing can realize energy-conserving target, reduce cost, unmanned on duty, this set of integrated modularization crowd accuse air compressor machine optimizing system product reforms transform very little to original air compressor machine system, and the expansibility is very strong, is fit for different air compressor machine system reforms transform.
drawings
fig. 1 is a block diagram of an integrated modular group control air compressor optimization system according to an embodiment of the present invention;
fig. 2 is the utility model discloses air compressor machine optimization software block diagram.
Detailed Description
the utility model is further explained with reference to the accompanying drawings and the specific embodiment, and the hardware system structure of the air compressor control optimization system is shown in fig. 1. And selecting a set of control system to form all required hardware equipment. The configuration of this kind of system architecture is because the air compressor machine equipment quantity of factory is generally more, and the air compressor machine generally distributes and arranges in a plurality of factory buildings, but also is applicable to the condition of concentrating on arranging in a factory building. In the system structure, one air compressor plant is defined as 1 field area. The functions and roles of the respective hardware in the system configuration are described below.
the utility model provides an integrated modularization crowd accuse air compressor machine optimizing system, as shown in FIG. 1, include: the system comprises a control management device, a master control device, a field device, a network A, a network B and a compressed air main pipe;
the control management equipment is connected with the main control equipment through a network A and a network B respectively, the main control equipment is connected with the field equipment through the network A and the network B respectively, and the field equipment is connected with the compressed air main pipe;
the control management equipment is positioned in the control room, issues a control command to the main control equipment, collects historical operating condition records and provides a summary report for a manager;
The main control equipment is positioned in the electronic room, receives a control instruction issued by the control management equipment and transmits the control instruction to the field equipment, so that the field equipment operates according to the control instruction;
the field devices are located in the field area, receive the control instruction transmitted by the main control device and transmit the control instruction to the air compressor to be optimized, so that the air compressor to be optimized operates according to the control instruction, and if a factory to be optimized has a plurality of field areas, each field area comprises a set of field devices;
the compressed air main pipe collects all compressed air output by the optimized air compressor to the compressed air main pipe, and the compressed air main pipe provides compressed air for an air object;
the network A and the network B are communication networks, and switching between the network A and the network B is carried out according to the use rule of the standby network;
the standby network usage rules are: when the network A fails and communication can not be carried out, switching to a network B, otherwise, carrying out communication by using the network A;
The control management device specifically includes: engineer stations, operator stations, printers;
the main control equipment comprises a main control cabinet;
the field device specifically includes: the system comprises at least one air compressor mechanism cabinet, at least one communication interface device, a remote cabinet and a field instrument;
the field instrument is connected with the remote cabinet, the remote cabinet is connected with the communication interface equipment through a communication cable, and the communication interface equipment is connected with the air compressor mechanism cabinet through a communication cable; the remote cabinet is connected with a first switch through a network A, the remote cabinet is connected with a second switch through a network B, the first switch is connected with the main control cabinet through the network A, the second switch is connected with the main control cabinet through the network B, the first switch is respectively connected with an engineer station, an operation station and a printer through the network A, and the second switch is respectively connected with the engineer station, the operation station and the printer through the network B; the compressed air main pipe is connected with the air compressor mechanism cabinet;
the field instrument detects equipment for various parameters of the integrated modular group control air compressor optimization system in the field and sends detected parameter signals to the communication interface equipment;
The equipment of all kinds of parameters of integrated modularization crowd control air compressor machine optimizing system specifically includes: the device comprises a pressure measuring device, a temperature measuring device, a flow measuring device, an air compressor current signal measuring device and an air compressor voltage signal measuring device; the pressure measuring equipment measures the pressure value in the compressed air main pipe; the temperature measuring equipment measures the temperature value in the compressed air main pipe; the flow measuring equipment measures the flow value in the compressed air main pipe; measuring the current value of each air compressor by air compressor current signal measuring equipment; measuring the voltage value of each air compressor by the air compressor voltage signal measuring equipment;
Measuring signals of the field instrument are all 4-20 mA, the measuring signals are connected to an I/O module in the remote cabinet through a cable, and the I/O module converts the measuring signals into digital signals;
the air compressor machine that awaits measuring and air compressor machine control module have been placed in the air compressor machine mechanism cabinet, and the air compressor machine that awaits measuring is connected with air compressor machine control module, and air compressor machine control module effect does: controlling the starting and stopping operation of the air compressor by adjusting parameters;
The communication interface equipment reads various parameters of the air compressor to be tested from the field instrument, reads a control signal of the air compressor to be tested from the remote cabinet and transmits the control signal to the air compressor to be tested in the air compressor mechanism cabinet;
The reading of various parameters of the air compressor to be tested comprises the following steps: the temperature alarm method comprises the following steps of (1) alarming according to the operation state of each air compressor, the stop state of each air compressor, the loading state of each air compressor, the unloading state of each air compressor, the current of each air compressor, the outlet pressure of each air compressor and the temperature of each air compressor;
the control signal of the air compressor to be tested comprises: starting control signals of the air compressor, stopping control signals of the air compressor, loading control signals of the air compressor and unloading control signals of the air compressor;
The communication interface equipment is connected with communication interfaces configured for the air compressors in the air compressor mechanism cabinet and communicates in a Modus communication mode, each air compressor is configured with one communication interface equipment, and if N air compressors are correspondingly configured on site, N communication interface equipment are configured;
the remote cabinet plays a role of signal relay between the field instrument and the control cabinet, reads various parameter signals of the field instrument, reads various parameter signals of the air compressor through the communication interface equipment, and sends all the read signals to the main control cabinet;
because the air compressor factory building is generally far away from the control room, a remote control cabinet is needed to be configured to receive/send out control information of the air compressor in the factory building and receive field instrument signals near the factory building, and the remote control cabinet is a main function of the air compressor factory building. One air compressor factory building is provided with one set of the equipment and arranged in the air compressor factory building.
the remote cabinet comprises: I/O module, communication module, power module and remote cabinet;
a power supply module: the I/O module and the communication module are respectively connected to provide power for the I/O module and the communication module;
I/O module: realize digital signal and analog signal two-way conversion, as required, set for analog signal conversion to digital signal, digital signal conversion to analog signal, switching value signal conversion to digital signal or digital signal conversion to switching value signal, specifically do: setting as required: converting the analog signal transmitted from the communication interface equipment into a digital signal; converting an analog signal transmitted by the field instrument into a digital signal; converting the switching value signal transmitted by the field instrument into a digital signal; or according to the requirement, setting: converting the digital signal transmitted from the communication interface equipment into an analog signal; converting a digital signal transmitted by the field instrument into an analog signal; converting a digital signal transmitted by the field instrument into a switching value signal;
communication module: the remote cabinet is connected with the communication interface equipment to realize communication between the remote cabinet and the communication interface equipment;
remote cabinet rack: the shell of the remote cabinet plays a role in protecting internal devices;
network A: the first switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer, and switching between the network A and the network B is carried out according to the use rule of the standby network;
and (3) network B: the second switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer to be a standby network, and switching between the network A and the network B is carried out according to the usage rule of the standby network;
the standby network usage rules are: when the network A fails and communication can not be carried out, switching to a network B, otherwise, carrying out communication by using the network A;
the communication medium of the network A and the network B is RJ45 network cable;
A main control cabinet: calculating all signals transmitted by the remote cabinet in real time through air compressor optimization software in a main control cabinet controller to obtain air compressor control signals, and transmitting the control signals to the remote cabinet;
the main control cabinet comprises: the system comprises a main control cabinet power supply module, a controller, a main control cabinet communication module, a first switch, a second switch and a main control cabinet;
the main control cabinet power supply module is respectively connected with the controller, the main control cabinet communication module, the first switch and the second switch and provides power for the controller, the main control cabinet communication module, the first switch and the second switch;
the controller stores air compressor control software, calculates all signals transmitted by the remote cabinet in real time, obtains air compressor control signals and transmits the air compressor control signals to the remote cabinet;
The main control cabinet communication module is used for finishing communication between the main control cabinet and the remote cabinet;
the main control cabinet and the shell of the main control cabinet play a role in protecting internal devices;
the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the first switch; the first switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the second switch; the second switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
The engineer station is provided with a first industrial personal computer, a first display, a first mouse and a first keyboard, air compressor control signals are combined into an air compressor control database according to time sequence, and historical data, data trend and alarm information reports of the database are obtained; acquiring an air compressor running state monitoring picture through a display;
the operating station comprises a second industrial personal computer, a second display, a second mouse and a second keyboard; the second industrial personal computer issues an air compressor control signal and acquires an air compressor running state monitoring picture through the display;
the printer is used for printing historical data, data trend and alarm information reports of the database;
if the air compressor factory to be optimized has an original monitoring system, which is recorded as an SIS system, the first switch is connected with the monitoring system through a network A, the second switch is connected with the monitoring system through a network B, and the monitoring system can only monitor and cannot perform any operation on other hardware and software. The SIS system is the SIS system shown in fig. 1. The monitoring picture of the air compressor optimization system can be connected to the plant-level monitoring SIS system, and a window for air compressor equipment management monitoring is provided for plant-level management personnel, and the window is optional. And the SIS system can only monitor and not operate.
the utility model discloses air compressor machine model: england (IngersollRand): 350 ML; combreta (CompAir): l375; combreta (CompAir): l250; longevity (SULLAIR): TS-32S;
The controller model: siemens (Siemens) brand: a) hardware: s7-1200, S7-1500, S7-300 and S7-400; b) programming and developing software: TIA bobble, STEP7, PCS 7; schneider (Schneider) brand: a) hardware: quantum PLC (140), Premium PLC (TSX 57); b) programming and developing software: concept, Unity;
monitoring software of an upper computer: siemens brand: WINCC; GE brand: IFIX;
the normal operation of the air compressor optimization system can be ensured by the software and hardware configuration with the model number easily by the technicians in the field;
further, an engineer edits and compiles air compressor control software, and after the compilation is finished, the air compressor control software is downloaded to the main control cabinet controller; the air compressor control software comprises: the system comprises a compressed air main pipe pressure calculation and setting module, a compressed air main pipe flow calculation module, a compressed air main pipe pressure open-loop regulation mode module, a compressed air main pipe pressure closed-loop regulation mode module, a pressure regulation algorithm selection module, an automatic start-stop air compressor control module, an air compressor sequence and priority selection module, an automatic loading and unloading air compressor control module, a compressed air main pipe pressure manual automatic control selection module and a manual control air compressor module;
the compressed air main pipe pressure calculation and setting module is connected with a compressed air main pipe pressure manual automatic control selection module, the compressed air main pipe pressure manual automatic control selection module is respectively connected with a pressure regulation algorithm selection module, an air compressor sequence and priority selection module and a manual control air compressor module, the manual control air compressor module is respectively connected with an air compressor start-stop and loading-unloading control module of each air compressor, the air compressor sequence and priority selection module is connected with an automatic start-stop air compressor control module, the automatic start-stop air compressor control module is connected with an automatic loading-unloading air compressor control module, the pressure regulation algorithm selection module is respectively connected with a compressed air main pipe pressure open-loop regulation mode module and a compressed air main pipe pressure closed-loop regulation mode module, the compressed air main pipe pressure open-loop regulation mode module and the compressed air main pipe pressure closed-loop regulation mode module are respectively connected with the automatic start-stop air compressor control module, the compressed air main pipe flow calculation module is connected with the compressed air main pipe pressure open-loop regulation mode module; as shown in fig. 2.
the system comprises a compressed air main pipe pressure calculating and setting module, a measuring pressure device, a remote cabinet and a main control cabinet, wherein the pressure value of the compressed air main pipe is acquired by the measuring pressure device and is transmitted to the main control cabinet through the remote cabinet, the number of the measuring pressure devices is 1-3, one of three algorithms, namely a single value algorithm, a mean value algorithm or a three-out-of-center algorithm, is selected and set in the compressed air main pipe pressure calculating and setting module according to the work requirement to be optimized, the final real-time pressure value of the compressed air main pipe is calculated and obtained, and the final real-time pressure value of the compressed air main pipe is transmitted to a compressed air main pipe pressure open-loop adjusting mode module or a compressed air main;
the single-value algorithm selects a certain pressure measuring device for designation, and the pressure value of the compressed air main pipe collected by the pressure measuring device is taken; the average algorithm is used for selecting a certain two pieces of pressure measurement equipment for designation, and taking the average value of the pressure values of the compressed air main pipes collected by the two pieces of pressure measurement equipment; in the third step, the middle values of the pressure values of the compressed air main pipe collected by the three pressure measuring devices are obtained;
The compressed air main pipe flow calculation module is used for measuring a flow value in a compressed air main pipe by a flow measuring device, transmitting the flow value to the main control cabinet through the remote cabinet, taking the flow value in the compressed air main pipe as a feedforward quantity, and transmitting the flow value to the compressed air main pipe pressure open-loop regulation mode module and the compressed air main pipe pressure closed-loop regulation mode module; the main reason for the change of the pressure of the compressed air in the factory is caused by the change of the flow rate of the compressed air at the user end, so the change of the flow rate can be used as an auxiliary means for adjusting the pressure of the compressed air main pipe, and the standard calculation is carried out after the field compressed air flow rate is collected into the system by a remote cabinet and is used as a feed-forward quantity for controlling the pressure of the compressed air main pipe.
the compressed air main pipe pressure open-loop adjusting mode module is used for manually setting an upper limit value and a lower limit value of the main pipe pressure, comparing a real-time pressure value of the compressed air main pipe obtained through calculation with the upper limit value and the lower limit value of the manually set main pipe pressure, and if the real-time pressure value of the compressed air main pipe exceeds the upper limit value of the manually set main pipe pressure, outputting an unloading control instruction to the automatic starting and stopping air compressor control module by the compressed air main pipe pressure open-loop adjusting mode module, transmitting the unloading control instruction to the automatic loading and unloading air compressor control module and automatically unloading K air compressors; if the real-time pressure value of the compressed air main pipe is lower than the lower limit value of the manually set main pipe pressure, the compressed air main pipe pressure open-loop adjusting mode module outputs a starting and loading control instruction to the automatic starting and stopping air compressor control module, and K standby air compressors are started and loaded; the starting and loading K air compressors comprises the following specific processes: if the standby air compressor is detected to be in a standby state, outputting a loading control instruction by using an automatic loading and unloading air compressor control module, and directly loading the standby air compressor;
the compressed air main pipe pressure closed-loop adjusting mode module is used for adjusting an executing mechanism of the running compressor in a closed-loop control mode if the absolute value of the difference value between the real-time pressure of the compressed air main pipe and the manually set main pipe pressure value is larger than a difference value threshold value, so that the real-time pressure of the compressed air main pipe is continuously close to the manually set main pipe pressure value; if the real-time pressure of the compressed air main pipe exceeds a manually set high alarm value, the compressed air main pipe pressure closed-loop regulation mode module sends a stop control instruction to the automatic start-stop air compressor control module, and then the K running air compressors are stopped; and if the real-time pressure of the compressed air main pipe is lower than the manually set low alarm value, the compressed air main pipe pressure closed-loop regulation mode module sends a starting and loading control instruction to the automatic starting and stopping air compressor control module, and K standby air compressors are started and loaded. The starting and loading K air compressors comprises the following specific processes: if the standby air compressor is detected to be in a standby state, outputting a loading control instruction by using an automatic loading and unloading air compressor control module, and directly loading the standby air compressor;
the pressure adjusting algorithm selection module is used for manually setting according to whether the air inlet quantity of the air compressor configured in a factory is adjustable, and if the air inlet quantity of the air compressor is not adjustable, an open-loop adjusting mode module is selected for carrying out pressure control on the main pipe; if the air input of the air compressor is adjustable, a closed-loop adjusting mode module is selected for controlling the pressure of the main pipe;
the system comprises an air compressor sequence and priority selection module, an air compressor controlled by a control optimization system, a control optimization system and a control optimization system, wherein the air compressor sequence and priority selection module is used for manually formulating start or stop, loading or unloading rows of n sets of related compressors according to the start or stop, loading or unloading sequence and switching requirements of related air compressors in a factory so as to automatically execute an air compressor optimization software program;
automatically, open and stop air compressor machine control module, according to the control command that compressed air main pipe pressure open loop adjustment mode module, compressed air main pipe pressure closed loop adjustment mode module and air compressor machine sequence and priority selection module transmission come, if control command is the start-up loading, then carry out following process: if the standby air compressor is detected to be in a standby state, transmitting a loading control instruction to an automatic loading and unloading air compressor control module, outputting the loading control instruction, directly loading the standby air compressor, if the standby air compressor is detected to be in a stop state, firstly using an automatic start-stop air compressor control module to output a start control instruction, starting the standby air compressor, and then outputting the loading control instruction through the automatic loading and unloading air compressor control module to load the standby air compressor; if the control instruction is a stop instruction, outputting a stop control instruction through the automatic start-stop air compressor control module, and stopping the corresponding air compressor; if the control instruction is a loading or unloading instruction, outputting the loading or unloading instruction to the automatic loading and unloading air compressor control module;
the automatic loading and unloading air compressor control module is used for loading or unloading the air compressor according to a loading and unloading control instruction transmitted by the automatic start-stop air compressor control module;
The compressed air main pipe pressure manual and automatic control selection module selects manual input or automatically controls the air compressor main pipe pressure value;
The system comprises a manual control air compressor module, a control system and a control system, wherein the manual control air compressor module is used for manually controlling a single air compressor under an optimization system if the automatic control of the pressure of a compressed air main pipe is not needed, the manual control is realized through an operation station, the single air compressor is started/stopped, and the loading pressure and the unloading pressure are manually set for the single air compressor;
the air compressor starting, stopping, loading and unloading control module receives signals of an automatic control air compressor and a manual control air compressor transmitted by the manual control air compressor module and directly drives the air compressor to start, stop or load and unload;
if a fault of abnormal data transmission occurs, the integrated modularized group control air compressor optimization system can perform the following actions according to the fault type:
the communication interface is in fault, and the air compressor corresponding to the communication interface in fault is automatically switched to local control;
the remote station fails, and all air compressors corresponding to the failed remote station interface are automatically switched to be controlled on site;
When the main control cabinet fails, all air compressors are controlled on site;
and both the network A and the network B have faults, and all the air compressors are switched to be controlled on site.
the utility model provides an integrated modularization crowd accuse air compressor machine optimizing system main part specification model list, as shown in Table 1:
TABLE 1 Main device Specification and model List
the utility model has the advantages that:
(1) The cable usage is reduced, and the user funds are saved. The distance between the air compressor field of a factory and a main control room and the electrons generally exceeds 500 meters, if all hardware is arranged between the electrons, long-distance cables need to be laid for relevant instrument signals and communication signals on the field, a large number of cables are needed, the cable cost is high, therefore, a remote cabinet is designed in each air compressor room, instrument signals and communication signals on the nearby field can be transmitted to the remote cabinet through short cables, a large number of cable purchasing funds can be saved, and the cost is saved for users.
(2) the control network and the local area network both use redundant networks to ensure the safety and stability of the operation of the control optimization system. The communication equipment and the communication medium of the control network and the local area network are both designed to be A, B dual redundancy, synchronous operation and mutual redundancy, and a single set of network fails without influencing the operation of the control optimization system. When any network fails, an alarm prompt is given to prompt maintenance personnel to timely process, check and process, and the timeliness of failure elimination is ensured. Therefore, the redundant network design of the control network and the local area network provides powerful guarantee for the safe and stable operation of the control optimization system.
Claims (6)
1. the utility model provides an integrated modularization team control air compressor machine optimizing system which characterized in that, concrete step is as follows: the method comprises the following steps: the system comprises a control management device, a master control device, a field device, a network A, a network B and a compressed air main pipe;
the control management equipment is connected with the main control equipment through a network A and a network B respectively, the main control equipment is connected with the field equipment through the network A and the network B respectively, and the field equipment is connected with the compressed air main pipe;
the control management equipment is positioned in the control room, issues a control command to the main control equipment, collects historical operating condition records and provides a summary report for a manager;
The main control equipment is positioned in the electronic room, receives a control instruction issued by the control management equipment and transmits the control instruction to the field equipment, so that the field equipment operates according to the control instruction;
the field devices are located in the field area, receive the control instruction transmitted by the main control device and transmit the control instruction to the air compressor to be optimized, so that the air compressor to be optimized operates according to the control instruction, and if a factory to be optimized has a plurality of field areas, each field area comprises a set of field devices;
the compressed air main pipe collects all compressed air output by the optimized air compressor to the compressed air main pipe, and the compressed air main pipe provides compressed air for an air object;
the network A and the network B are communication networks, and switching between the network A and the network B is carried out according to the use rule of the standby network;
the standby network usage rules are: and when the network A fails and cannot carry out communication, switching to a network B, otherwise, carrying out communication by using the network A.
2. The system of claim 1, wherein the control management device specifically comprises: engineer stations, operator stations, printers;
The main control equipment comprises a main control cabinet;
the field device specifically includes: the system comprises at least one air compressor mechanism cabinet, at least one communication interface device, a remote cabinet and a field instrument;
the field instrument is connected with the remote cabinet, the remote cabinet is connected with the communication interface equipment through a communication cable, and the communication interface equipment is connected with the air compressor mechanism cabinet through a communication cable; the remote cabinet is connected with a first switch through a network A, the remote cabinet is connected with a second switch through a network B, the first switch is connected with the main control cabinet through the network A, the second switch is connected with the main control cabinet through the network B, the first switch is respectively connected with an engineer station, an operation station and a printer through the network A, and the second switch is respectively connected with the engineer station, the operation station and the printer through the network B; the compressed air main pipe is connected with the air compressor mechanism cabinet;
The field instrument detects equipment for various parameters of the integrated modular group control air compressor optimization system in the field and sends detected parameter signals to the communication interface equipment;
the air compressor machine that awaits measuring and air compressor machine control module have been placed in the air compressor machine mechanism cabinet, await measuring the air compressor machine and be connected with air compressor machine control module, and air compressor machine control module effect does: controlling the starting and stopping operation of the air compressor by adjusting parameters;
the communication interface equipment reads various parameters of the air compressor to be tested from the field instrument, reads a control signal of the air compressor to be tested from the remote cabinet, and transmits the control signal to the air compressor to be tested in the air compressor mechanism cabinet;
the communication interface equipment is connected with communication interfaces configured for the air compressors in the air compressor mechanism cabinet and communicates in a Modus communication mode, each air compressor is configured with one communication interface equipment, and if N air compressors are correspondingly configured on site, N communication interface equipment are configured;
the remote cabinet plays a role of signal relay between the field instrument and the control cabinet, reads various parameter signals of the field instrument, reads various parameter signals of the air compressor through the communication interface equipment, and sends all the read signals to the main control cabinet;
the remote cabinet comprises: I/O module, communication module, power module and remote cabinet;
a power supply module: the I/O module and the communication module are respectively connected to provide power for the I/O module and the communication module;
I/O module: realize digital signal and analog signal two-way conversion, as required, set for analog signal conversion to digital signal, digital signal conversion to analog signal, switching value signal conversion to digital signal or digital signal conversion to switching value signal, specifically do: setting as required: converting the analog signal transmitted from the communication interface equipment into a digital signal; converting an analog signal transmitted by the field instrument into a digital signal; converting the switching value signal transmitted by the field instrument into a digital signal; or according to the requirement, setting: converting the digital signal transmitted from the communication interface equipment into an analog signal; converting a digital signal transmitted by the field instrument into an analog signal; converting a digital signal transmitted by the field instrument into a switching value signal;
communication module: the remote cabinet is connected with the communication interface equipment to realize communication between the remote cabinet and the communication interface equipment;
Remote cabinet rack: the shell of the remote cabinet plays a role in protecting internal devices;
network A: the first switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer, and switching between the network A and the network B is carried out according to the use rule of the standby network;
and (3) network B: the second switch is respectively connected with communication networks among the remote cabinet, the main control cabinet, the engineer station, the operation room and the printer to be a standby network, and switching between the network A and the network B is carried out according to the usage rule of the standby network;
A main control cabinet: calculating all signals transmitted by the remote cabinet in real time through air compressor optimization software in a main control cabinet controller to obtain air compressor control signals, and transmitting the control signals to the remote cabinet;
the main control cabinet comprises: the system comprises a main control cabinet power supply module, a controller, a main control cabinet communication module, a first switch, a second switch and a main control cabinet;
the main control cabinet power supply module is respectively connected with the controller, the main control cabinet communication module, the first switch and the second switch and provides power for the controller, the main control cabinet communication module, the first switch and the second switch;
the controller stores air compressor control software, calculates all signals transmitted by the remote cabinet in real time, obtains air compressor control signals and transmits the air compressor control signals to the remote cabinet;
The main control cabinet communication module is used for finishing communication between the main control cabinet and the remote cabinet;
the main control cabinet and the shell of the main control cabinet play a role in protecting internal devices;
the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the first switch; the first switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
The remote cabinet, the master control cabinet, the engineer station, the operation station and the printer form a star topology network structure through the second switch; the second switch is an intermediate medium for data transmission and exchange among the remote cabinet, the master control cabinet, the engineer station, the operation station and the printer;
the engineer station is provided with a first industrial personal computer, a first display, a first mouse and a first keyboard, and the air compressor control software is downloaded to the main control cabinet controller; forming an air compressor control database by the air compressor control signals according to a time sequence, and acquiring historical data, data trend and alarm information reports of the database; acquiring an air compressor running state monitoring picture through a display;
the operating station comprises a second industrial personal computer, a second display, a second mouse and a second keyboard; the second industrial personal computer issues an air compressor control signal and acquires an air compressor running state monitoring picture through the display;
and the printer is used for printing historical data, data trend and alarm information reports of the database.
3. the system of claim 2, wherein the equipment for optimizing various parameters of the integrated modular group control air compressor system specifically comprises: the device comprises a pressure measuring device, a temperature measuring device, a flow measuring device, an air compressor current signal measuring device and an air compressor voltage signal measuring device; the pressure measuring equipment measures the pressure value in the compressed air main pipe; the temperature measuring equipment measures the temperature value in the compressed air main pipe; the flow measuring equipment measures the flow value in the compressed air main pipe; measuring the current value of each air compressor by air compressor current signal measuring equipment; measuring the voltage value of each air compressor by the air compressor voltage signal measuring equipment;
The field instrument measurement signals are all 4-20 mA, the measurement signals are connected to an I/O module in the remote cabinet through a cable, and the I/O module converts the measurement signals into digital signals.
4. the system of claim 2, wherein the reading of various parameters of the air compressors to be tested comprises: the temperature alarm method comprises the following steps of (1) alarming according to the operation state of each air compressor, the stop state of each air compressor, the loading state of each air compressor, the unloading state of each air compressor, the current of each air compressor, the outlet pressure of each air compressor and the temperature of each air compressor;
the control signal of the air compressor to be tested comprises: the control system comprises a starting control signal of the air compressor, a stopping control signal of the air compressor, a loading control signal of the air compressor and an unloading control signal of the air compressor.
5. the system of claim 2, wherein the network A and network B communication medium is an RJ45 cable.
6. the system of claim 2, wherein if an original monitoring system is provided in the air compressor factory to be optimized, the original monitoring system is referred to as an SIS system, the first switch is connected to the monitoring system through a network A, and the second switch is connected to the monitoring system through a network B, and the monitoring system can only monitor and cannot perform any operation on other hardware and software.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536020A (en) * | 2020-01-10 | 2020-08-14 | 爱景节能科技（上海）有限公司 | Air compression station data acquisition, monitoring and analysis equipment based on cloud platform |
| CN111749878A (en) * | 2019-03-28 | 2020-10-09 | 中电投东北能源科技有限公司 | Integrated modular group control air compressor optimization system |
| CN112502954A (en) * | 2020-11-27 | 2021-03-16 | 浙江先博节能科技有限公司 | Air compressor machine intelligence centralized control linked system based on cloud platform |
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2019
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111749878A (en) * | 2019-03-28 | 2020-10-09 | 中电投东北能源科技有限公司 | Integrated modular group control air compressor optimization system |
| CN111749878B (en) * | 2019-03-28 | 2024-12-10 | 中电投东北能源科技有限公司 | An integrated modular group-controlled air compressor optimization system |
| CN111536020A (en) * | 2020-01-10 | 2020-08-14 | 爱景节能科技（上海）有限公司 | Air compression station data acquisition, monitoring and analysis equipment based on cloud platform |
| CN112502954A (en) * | 2020-11-27 | 2021-03-16 | 浙江先博节能科技有限公司 | Air compressor machine intelligence centralized control linked system based on cloud platform |
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