CN111779675A - Intelligent mechanical vacuum pump system for steelmaking based on Internet of things and application - Google Patents
Intelligent mechanical vacuum pump system for steelmaking based on Internet of things and application Download PDFInfo
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- CN111779675A CN111779675A CN202010521120.1A CN202010521120A CN111779675A CN 111779675 A CN111779675 A CN 111779675A CN 202010521120 A CN202010521120 A CN 202010521120A CN 111779675 A CN111779675 A CN 111779675A
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- vacuum pump
- programmable controller
- monitoring
- vacuum
- inlet
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/02—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids specially adapted for several pumps connected in series or in parallel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C25/00—Adaptations of pumps for special use of pumps for elastic fluids
- F04C25/02—Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C28/00—Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
- F04C28/28—Safety arrangements; Monitoring
Abstract
The invention provides an intelligent mechanical vacuum pump system for steelmaking based on the Internet of things and application thereof. The invention introduces advanced internet of things technology into operation monitoring and fault diagnosis of an intelligent mechanical vacuum pump system for steelmaking, realizes remote interconnection and communication of a data processor and a client server in a large amount of equipment data in a cloud platform through the wireless internet technology of more than 4G, analyzes and diagnoses the operation state of a mechanical vacuum pump in the client server, and transmits corresponding data to a field data processor.
Description
Technical Field
The invention belongs to the field of refining devices outside vacuum furnaces, and particularly relates to an intelligent mechanical vacuum pump system for steelmaking based on the Internet of things and application thereof.
Background
The mechanical vacuum pump system is a vacuum pumping system formed by mechanical pumps, and compared with a steam jet pump set conventionally used in the metallurgical industry, the mechanical vacuum pump system does not need steam and a large amount of water as working media, and is low in operation cost. In recent years, domestic multi-pump set mechanical pump large-scale vacuum systems are applied to molten steel refining industries such as RH, VD, VOD and VC. However, the large mechanical vacuum pump system used in the steel making equipment has the characteristics of complex structure, large quantity, more control points and high maintenance cost. Therefore, the working capacity and the service life of the mechanical vacuum pump can be directly influenced by the factors of high-temperature and thick dust of molten steel waste gas, high temperature of a pump cavity, small clearance between a stator and a rotor, vibration of a machine body, frequent leakage of a shaft end, easy overload of a motor, strict control conditions and the like, and the high manufacturing and maintenance cost of the mechanical vacuum pump makes the online fault diagnosis and state analysis intelligent system of the mechanical pump set urgent.
Disclosure of Invention
The embodiment of the invention aims to provide an intelligent mechanical vacuum pump system for steelmaking based on the Internet of things and application thereof, so as to overcome the technical defects.
In order to solve the technical problems, the invention provides an intelligent mechanical vacuum pump system for steelmaking based on the internet of things, which comprises the following components:
the data acquisition module is used for acquiring the operating parameters of the mechanical vacuum pump system;
the programmable controller is used for acquiring data acquired by the data acquisition module;
the wireless transmission module is used for transmitting data sent by the programmable controller;
the client server is used for receiving the data sent by the programmable controller, analyzing and diagnosing the running state of the mechanical vacuum pump system according to the received data, sending a diagnosis result to the programmable controller through the wireless transmission module, and regulating and controlling the running state of the mechanical vacuum pump system by the programmable controller according to the received diagnosis result;
and the client terminal is used for receiving the diagnosis result sent by the client server.
Further, the data acquisition module comprises a multi-sensor combination and a detection device combination.
Preferably, the mechanical vacuum pump system is composed of multiple vacuum pumps connected in series, the nth vacuum pump, the (n-1) th vacuum pump … …, the 3 rd vacuum pump, the 2 nd vacuum pump and the 1 st vacuum pump are sequentially arranged along the flowing direction of the medium, n is a positive integer, each vacuum pump is composed of a plurality of vacuum pumps connected in parallel, each vacuum pump is provided with a multi-sensor combination, wherein the multi-sensor combination comprises:
the temperature transmitter a is arranged at the inlet of each vacuum pump, is electrically coupled with the programmable controller and is used for monitoring the temperature of the molten steel exhaust gas at the inlet of each vacuum pump;
the temperature transmitter b is arranged at the outlet of each vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the temperature of the molten steel exhaust gas at the outlet of each vacuum pump;
the absolute pressure transmitter a is arranged at the inlet of each vacuum pump, is electrically coupled with the programmable controller and is used for monitoring the vacuum degree of the inlet of each vacuum pump;
the absolute pressure transmitter b is arranged at the outlet of each vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the vacuum degree of the outlet of each vacuum pump;
the absolute pressure transmitter c is arranged at the general inlet of each stage of vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the total vacuum degree of the general inlet of each stage of vacuum pump;
the absolute pressure transmitter d is arranged at the main outlet of the 1 st-level vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the total vacuum degree of the main outlet of the 1 st-level vacuum pump;
the temperature gauge is arranged in the pump cavity of each vacuum pump and electrically coupled with the programmable controller and used for monitoring the temperature of the cooling water in each vacuum pump;
and the flow meter is arranged on the pump body of each vacuum pump and electrically coupled to the programmable controller and used for monitoring the flow rate of the cooling water in each vacuum pump.
Further, the detecting device assembly includes:
the concentration detector m is arranged at the main inlet of the nth-stage vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the exhaust gas concentration and the exhaust gas granularity at the main inlet of the nth-stage vacuum pump;
the valve controller is arranged on a valve of an inlet pipeline of each vacuum pump, is electrically coupled to the programmable controller and is used for controlling the medium on-off of each vacuum pump;
the current detection element is arranged on the pump body of each vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the load moment of each vacuum pump;
the vibration detector is arranged on the pump body of each vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the vibration amplitude and the vibration frequency of each vacuum pump;
and the exhaust gas analyzer is arranged at the main outlet of the 1 st-level vacuum pump, is electrically coupled to the programmable controller and is used for monitoring the exhaust gas composition and the exhaust gas pressure at the main outlet of the 1 st-level vacuum pump.
Preferably, the total inlet of the nth stage vacuum pump is connected to the outlet of the molten steel waste gas dust remover through a pipeline, the inlet of the molten steel waste gas dust remover is connected to the outlet of the molten steel waste gas cooler through a pipeline, the inlet of the molten steel waste gas cooler is connected to the outlet of the refining furnace, a steel ladle is arranged below the refining furnace, and a vacuum main valve is arranged on the pipeline between the molten steel waste gas dust remover and the molten steel waste gas cooler, specifically:
the inlet of the molten steel waste gas cooler is provided with a concentration detector n which is electrically coupled with the programmable controller, and the concentration detector n is used for monitoring the waste gas concentration and the waste gas granularity of the inlet of the molten steel waste gas cooler;
the inlet of the molten steel waste gas cooler is also provided with a temperature transmitter m which is electrically coupled with the programmable controller, and the temperature transmitter m is used for monitoring the waste gas temperature at the inlet of the molten steel waste gas cooler;
an absolute pressure transmitter m and a temperature transmitter n are sequentially arranged on an upstream pipeline of the vacuum main valve along the flowing direction of a medium, wherein the absolute pressure transmitter m is used for monitoring the vacuum degree of a vacuum system in front of the vacuum main valve, and the temperature transmitter n is used for monitoring the gas temperature in front of the vacuum main valve;
the downstream pipeline of the vacuum main valve is sequentially provided with an absolute pressure transmitter n, a temperature transmitter s and a concentration detector s along the flowing direction of a medium, wherein the absolute pressure transmitter n is used for monitoring the vacuum degree of a vacuum system behind the vacuum main valve, the temperature transmitter s is used for monitoring the gas temperature behind the vacuum main valve, and the concentration detector s is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas dust remover.
Further, the wireless transmission module comprises a Remote module, a router, a wireless internet, a cloud platform and an RCD module, wherein the router is coupled to the Remote module, the Remote module is coupled to the programmable controller, the RCD module is coupled to the client server, and the programmable controller and the client server communicate with each other through the wireless internet and the cloud platform.
Preferably, the wireless transmission module further comprises a GPRS module, the GPRS module is coupled to the client server, and the client server and the client terminal communicate with each other through the GPRS module.
The invention also provides an application of the intelligent mechanical vacuum pump system for steelmaking based on the Internet of things, which comprises the intelligent mechanical vacuum pump system for steelmaking based on the Internet of things, and specifically comprises the following steps:
the data acquisition module acquires the operating parameters of the mechanical vacuum pump system, the programmable controller acquires the operating parameters and sends the operating parameters to the client server through the wireless transmission module, the client server analyzes and diagnoses the operating parameters and sends the diagnosis result to the programmable controller, and the programmable controller regulates and controls the operating state of the mechanical vacuum pump system in real time according to the diagnosis result;
during this time, the client server sends the diagnosis result to the client terminal.
The invention has the following beneficial effects:
the intelligent mechanical vacuum pump system for steelmaking based on the Internet of things provides efficient and stable data transmission, accurate and timely data analysis and various using modes, can help owners, system design units and equipment supply units to master the conditions of field equipment more accurately and timely, exchange information with a steelmaking site at the first time and give suggestions, and plays a vital role in optimizing and researching and developing equipment.
In order to make the aforementioned and other objects of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a data transmission diagram of an intelligent mechanical vacuum pump system for steelmaking based on the Internet of things.
FIG. 2 is an electrical connection diagram of an intelligent mechanical vacuum pump system for steel making based on the Internet of things.
FIG. 3 is a position diagram of a multi-sensor combination and detector set combination in a mechanical vacuum pump system.
Description of reference numerals:
1. a mechanical vacuum pump system; 2. a programmable controller; a Remote module; 4. a router; 5. a wireless internet; 6. a cloud platform; an RCD module; a GPRS module; 9. a client server; 10. a client terminal; 11. a data acquisition module; 12. a wireless transmission module;
13-1. temperature transmitter a; 13-2. temperature transmitter b; 13-3. temperature transmitter m; 13-4. temperature transmitter n; 13-5. temperature transmitter s;
14-1. absolute pressure transmitter a; 14-2. absolute pressure transmitter b; 14-3. absolute pressure transmitter c; 14-4. absolute pressure transmitter d; 14-5, absolute pressure transmitter m; 14-6. temperature transmitter n;
15-1. a concentration detector m; 15-2. concentration detector n; 15-3. concentration detector s;
16. an exhaust gas analyzer; 17. a current detection element; 18. a flow meter; 19. a thermometer; 20. a valve controller; 21. a molten steel waste gas cooler; 22. a molten steel waste gas dust remover; 23. a refining furnace; 24. a vacuum main valve; 25. provided is a vibration detector.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
In the present invention, the upper, lower, left and right sides in the drawing are regarded as the upper, lower, left and right sides of the intelligent mechanical vacuum pump system for steelmaking based on the internet of things described in the present specification.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
The first embodiment:
the first embodiment of the invention relates to an intelligent mechanical vacuum pump system for steelmaking based on the internet of things, as shown in fig. 1, comprising:
the data acquisition module 11 is used for acquiring the operation parameters of the mechanical vacuum pump system 1;
the programmable controller 2 is used for acquiring data acquired by the data acquisition module 11;
the wireless transmission module 12 is used for transmitting data sent by the programmable controller 2;
the client server 9 is used for receiving the data sent by the programmable controller 2, analyzing and diagnosing the operation state of the mechanical vacuum pump system 1 according to the received data, sending a diagnosis result to the programmable controller 2 through the wireless transmission module 12, and regulating and controlling the operation state of the mechanical vacuum pump system 1 by the programmable controller 2 according to the received diagnosis result;
and the client terminal 10 is used for receiving the diagnosis result sent by the client server 9.
The working principle of the intelligent mechanical vacuum pump system for steelmaking based on the Internet of things is as follows:
the data acquisition module 11 acquires the operation parameters of the mechanical vacuum pump system 1, the programmable controller 2 acquires the operation parameters and sends the operation parameters to the client server 9 through the wireless transmission module 12, the client server 9 analyzes and diagnoses the operation parameters and sends the diagnosis result to the programmable controller 2, and the programmable controller 2 regulates and controls the operation state of the mechanical vacuum pump system 1 in real time according to the diagnosis result;
during this time, the client server 9 sends the diagnosis result to the client terminal 10.
The client terminal 10 may be a hand-held terminal such as a mobile phone.
The operation parameters of the mechanical vacuum pump can be the vacuum degree of the pump, the temperature of molten steel and waste gas, the concentration of the waste gas, the granularity of the waste gas, the vibration amplitude of the vacuum pump, the vibration frequency of the vacuum pump and the like, after the client server 9 receives the parameters, the operation state of the mechanical vacuum pump is analyzed and diagnosed, for example, whether the vacuum degree is in a preset range, whether the temperature of the molten steel and the waste gas is too high or not is analyzed, whether the vacuum pump breaks down or not is judged, meanwhile, real-time alarming can be achieved, the operation state of the vacuum pump is regulated and controlled in real time, accurate parameters are provided for an owner, the owner can be ensured to timely master the conditions of field equipment, information exchange and suggestions are given out.
The client server 9 may be a server, an upper computer, a computer, or the like, and is mainly used for analyzing and judging the operation parameters of the mechanical vacuum pump, such as comparing with the pre-stored parameter values, judging whether the operation parameters are consistent or included in the pre-stored value range, and the like.
Second embodiment:
this embodiment relates to intelligent mechanical vacuum pump system for steelmaking based on thing networking, as shown in fig. 1, includes:
the data acquisition module 11 is used for acquiring the operation parameters of the mechanical vacuum pump system 1;
the programmable controller 2 is used for acquiring data acquired by the data acquisition module 11;
the wireless transmission module 12 is used for transmitting data sent by the programmable controller 2;
the client server 9 is used for receiving the data sent by the programmable controller 2, analyzing and diagnosing the operation state of the mechanical vacuum pump system 1 according to the received data, sending a diagnosis result to the programmable controller 2 through the wireless transmission module 12, and regulating and controlling the operation state of the mechanical vacuum pump system 1 by the programmable controller 2 according to the received diagnosis result;
and the client terminal 10 is used for receiving the diagnosis result sent by the client server 9.
Preferably, the data acquisition module 11 comprises a multi-sensor combination and a detection device combination.
Referring to fig. 3, a mechanical vacuum pump system 1 is composed of multiple vacuum pumps connected in series, an nth-stage vacuum pump, an n-1 st-stage vacuum pump … …, a 3 rd-stage vacuum pump, a 2 nd-stage vacuum pump, and a1 st-stage vacuum pump are sequentially arranged along the flow direction of a medium, n is a positive integer, each stage of vacuum pump is composed of a plurality of vacuum pumps connected in parallel, each vacuum pump is provided with a multi-sensor combination, wherein the multi-sensor combination comprises:
a temperature transmitter a13-1 installed at each vacuum pump inlet and electrically coupled to the programmable controller 2 for monitoring the molten steel exhaust gas temperature at each vacuum pump inlet;
the temperature transmitter b13-2 is arranged at the outlet of each vacuum pump, is electrically coupled with the programmable controller 2 and is used for monitoring the temperature of the molten steel exhaust gas at the outlet of each vacuum pump;
an absolute pressure transmitter a14-1 installed at each vacuum pump inlet and electrically coupled to the programmable controller 2 for monitoring the vacuum degree of each vacuum pump inlet;
the absolute pressure transducer b14-2 is arranged at the outlet of each vacuum pump, is electrically coupled with the programmable controller 2 and is used for monitoring the vacuum degree of the outlet of each vacuum pump;
the absolute pressure transmitter c14-3 is arranged at the general inlet of each stage of vacuum pump, is electrically coupled to the programmable controller 2 and is used for monitoring the total vacuum degree of the general inlet of each stage of vacuum pump;
the absolute pressure transmitter d14-4 is installed at the total outlet of the 1 st-level vacuum pump, is electrically coupled to the programmable controller 2, and is used for monitoring the total vacuum degree of the total outlet of the 1 st-level vacuum pump;
a thermometer 19 installed at the pump chamber of each vacuum pump and electrically coupled to the programmable controller 2 for monitoring the temperature of the cooling water in each vacuum pump;
and a flow meter 18 mounted to the pump body of each vacuum pump and electrically coupled to the programmable controller 2 for monitoring the flow rate of the cooling water in each vacuum pump.
Referring to fig. 3, the detecting device assembly includes:
a concentration detector m15-1 installed at the inlet of the nth-stage vacuum pump and electrically coupled to the programmable controller 2 for monitoring the exhaust gas concentration and the exhaust gas particle size at the inlet of the nth-stage vacuum pump;
a valve controller 20, installed on the valve of the inlet pipeline of each vacuum pump and electrically coupled to the programmable controller 2, for controlling the medium on/off of each vacuum pump;
a current detection element 17 mounted on the pump body of each vacuum pump and electrically coupled to the programmable controller 2, for monitoring the load moment of each vacuum pump;
a vibration detector 25 mounted on the pump body of each vacuum pump and electrically coupled to the programmable controller 2, for monitoring the vibration amplitude and the vibration frequency of each vacuum pump;
and the exhaust gas analyzer 16 is arranged at the general outlet of the 1 st-stage vacuum pump and is electrically coupled with the programmable controller 2 and used for monitoring the exhaust gas composition and the exhaust gas pressure at the general outlet of the 1 st-stage vacuum pump.
Referring to fig. 3, a main inlet of the nth stage vacuum pump is connected to an outlet of the molten steel waste gas dust collector 22 through a pipeline, an inlet of the molten steel waste gas dust collector 22 is connected to an outlet of the molten steel waste gas cooler 21 through a pipeline, an inlet of the molten steel waste gas cooler 21 is connected to an outlet of the refining furnace 23, and a ladle is arranged below the refining furnace 23, wherein a vacuum main valve 24 is installed in the pipeline between the molten steel waste gas dust collector 22 and the molten steel waste gas cooler 21, specifically:
a concentration detector n15-2 electrically coupled to the programmable controller 2 is installed at the inlet of the molten steel waste gas cooler 21, and the concentration detector n15-2 is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas cooler 21;
the inlet of the molten steel waste gas cooler 21 is also provided with a temperature transmitter m13-3 which is electrically coupled with the programmable controller 2, and the temperature transmitter m13-3 is used for monitoring the waste gas temperature at the inlet of the molten steel waste gas cooler 21;
an absolute pressure transmitter m14-5 and a temperature transmitter n13-4 are sequentially arranged on an upstream pipeline of the vacuum main valve 24 along the flowing direction of a medium, wherein the absolute pressure transmitter m14-5 is used for monitoring the vacuum degree of a vacuum system in front of the vacuum main valve 24, and the temperature transmitter n13-4 is used for monitoring the gas temperature in front of the vacuum main valve 24;
an absolute pressure transmitter n14-6, a temperature transmitter s13-5 and a concentration detector s15-3 are sequentially arranged on a downstream pipeline of the vacuum main valve 24 along the flowing direction of a medium, wherein the absolute pressure transmitter n14-6 is used for monitoring the vacuum degree of a vacuum system behind the vacuum main valve 24, the temperature transmitter s13-5 is used for monitoring the gas temperature behind the vacuum main valve 24, and the concentration detector s15-3 is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas dust remover 22.
The above is the optimal installation positions of various sensors and various detection elements provided according to the specific structure of the mechanical vacuum pump system 1 and the parameters required for judging the operation state thereof, taking a four-stage vacuum pump as an example, as shown in fig. 3:
the ladle top is refining furnace 23, along the medium flow direction, the low reaches of refining furnace 23 are molten steel waste gas cooler 21 in proper order, vacuum main valve 24, molten steel waste gas dust remover 22 inserts the level four lobe pump through the pipeline, the low reaches of level four lobe pump are tertiary lobe pump in proper order, the second grade lobe pump, the one-level screw pump, the export of one-level screw pump leads to outside the factory through the pipeline, see fig. 3, each pipeline that the molten steel waste gas flows through, sensor or detection device rather than adapting is all installed to each low reaches equipment, wherein:
the temperature transmitter is used for detecting the temperature of the molten steel waste gas;
the absolute pressure transmitter is used for detecting the vacuum degree of the vacuum pump;
the concentration detector is used for detecting the concentration and the granularity of the waste gas;
the waste gas analyzer is used for monitoring the components and the pressure of waste gas discharged outside the plant;
the current detection element is used for monitoring the load moment of the vacuum pump;
the flow meter is used for monitoring the flow rate of cooling water of the vacuum pump;
the thermometer is used for monitoring the temperature of the cooling water of the vacuum pump;
the vibration detector is used for monitoring the vibration amplitude and the vibration frequency of the vacuum pump;
the valve controller is used for introducing or withdrawing the mechanical vacuum pump.
All the sensors or the detection devices are coupled to the programmable controller 2, namely, the PLC, all the sensors and all the detection devices respectively acquire corresponding data and transmit the data to the PLC, the PLC transmits the data to the client server 9 through the wireless transmission module 12, the client server 9 analyzes and diagnoses the operation parameters and transmits the diagnosis result to the programmable controller 2, and the programmable controller 2 regulates and controls the operation state of the mechanical vacuum pump system 1 in real time according to the diagnosis result.
All sensors and all detection devices are commercially available and are of current construction.
The client server 9 can monitor the running state and the fault of the large mechanical vacuum system on line, and connect a field data processor of a mechanical vacuum pump system in an owner steel plant to a cloud platform through the latest industrial interconnection technology, so that remote interconnection and fault diagnosis of a large amount of equipment data are realized.
The third embodiment:
referring to fig. 2, the wireless transmission module 12 includes a Remote module 3, a router 4, a wireless internet 5, a cloud platform 6, and an RCD module 7, wherein the router 4 is coupled to the Remote module 3, the Remote module 3 is coupled to the programmable controller 2, the RCD module 7 is coupled to the client server 9, and communication between the programmable controller 2 and the client server 9 is realized through the wireless internet 5 and the cloud platform 6.
The wireless transmission module 12 further includes a GPRS module 8, the GPRS module 8 is coupled to the client server 9, and the client server 9 and the client terminal 10 communicate with each other through the GPRS module 8.
The Remote module 3 and the RCD module 7 (Remote Connection Device) are a pair of internet devices, and establish Connection through internet technology. The computer (upper computer) on the monitoring side can access the Remote or the programmable controller 2 only by accessing the IP address of the RCD.
All modules are commercially available and are part of the prior art, for example:
remote module 3 may select Large Gledgaget ETH-MPI (Remote).
The RCD module 7 may select the RCD module pushed by grand kingdom.
Fourth embodiment:
this embodiment provides an intelligent mechanical vacuum pump system's for steelmaking application based on thing networking, and it includes intelligent mechanical vacuum pump system for steelmaking based on thing networking, specifically is:
the data acquisition module 11 acquires the operation parameters of the mechanical vacuum pump system 1, the programmable controller 2 acquires the operation parameters and sends the operation parameters to the client server 9 through the wireless transmission module 12, the client server 9 analyzes and diagnoses the operation parameters and sends the diagnosis result to the programmable controller 2, and the programmable controller 2 regulates and controls the operation state of the mechanical vacuum pump system 1 in real time according to the diagnosis result;
during this time, the client server 9 sends the diagnosis result to the client terminal 10.
Specifically, intelligent mechanical vacuum pump system for steelmaking based on thing networking includes:
the data acquisition module 11 is used for acquiring the operation parameters of the mechanical vacuum pump system 1;
the programmable controller 2 is used for acquiring data acquired by the data acquisition module 11;
the wireless transmission module 12 is used for transmitting data sent by the programmable controller 2;
the client server 9 is used for receiving the data sent by the programmable controller 2, analyzing and diagnosing the operation state of the mechanical vacuum pump system 1 according to the received data, sending a diagnosis result to the programmable controller 2 through the wireless transmission module 12, and regulating and controlling the operation state of the mechanical vacuum pump system 1 by the programmable controller 2 according to the received diagnosis result;
and the client terminal 10 is used for receiving the diagnosis result sent by the client server 9.
The data acquisition module 11 includes a multi-sensor assembly and a detection device assembly.
Mechanical vacuum pump system 1 comprises multistage vacuum pump series connection, is the nth vacuum pump in proper order, the 3 rd vacuum pump of the nth-1 vacuum pump … …, the 2 nd vacuum pump, the 1 st vacuum pump along the flow direction of medium, and n is the positive integer, and each stage of vacuum pump comprises a plurality of vacuum pumps in parallel, and the multisensor combination is installed to every vacuum pump, and wherein the multisensor combination includes:
a temperature transmitter a13-1 installed at each vacuum pump inlet and electrically coupled to the programmable controller 2 for monitoring the molten steel exhaust gas temperature at each vacuum pump inlet;
the temperature transmitter b13-2 is arranged at the outlet of each vacuum pump, is electrically coupled with the programmable controller 2 and is used for monitoring the temperature of the molten steel exhaust gas at the outlet of each vacuum pump;
an absolute pressure transmitter a14-1 installed at each vacuum pump inlet and electrically coupled to the programmable controller 2 for monitoring the vacuum degree of each vacuum pump inlet;
the absolute pressure transducer b14-2 is arranged at the outlet of each vacuum pump, is electrically coupled with the programmable controller 2 and is used for monitoring the vacuum degree of the outlet of each vacuum pump;
the absolute pressure transmitter c14-3 is arranged at the general inlet of each stage of vacuum pump, is electrically coupled to the programmable controller 2 and is used for monitoring the total vacuum degree of the general inlet of each stage of vacuum pump;
the absolute pressure transmitter d14-4 is installed at the total outlet of the 1 st-level vacuum pump, is electrically coupled to the programmable controller 2, and is used for monitoring the total vacuum degree of the total outlet of the 1 st-level vacuum pump;
a thermometer 19 installed at the pump chamber of each vacuum pump and electrically coupled to the programmable controller 2 for monitoring the temperature of the cooling water in each vacuum pump;
and a flow meter 18 mounted to the pump body of each vacuum pump and electrically coupled to the programmable controller 2 for monitoring the flow rate of the cooling water in each vacuum pump.
The detection device assembly includes:
a concentration detector m15-1 installed at the inlet of the nth-stage vacuum pump and electrically coupled to the programmable controller 2 for monitoring the exhaust gas concentration and the exhaust gas particle size at the inlet of the nth-stage vacuum pump;
a valve controller 20, installed on the valve of the inlet pipeline of each vacuum pump and electrically coupled to the programmable controller 2, for controlling the medium on/off of each vacuum pump;
a current detection element 17 mounted on the pump body of each vacuum pump and electrically coupled to the programmable controller 2, for monitoring the load moment of each vacuum pump;
a vibration detector 25 mounted on the pump body of each vacuum pump and electrically coupled to the programmable controller 2, for monitoring the vibration amplitude and the vibration frequency of each vacuum pump;
and the exhaust gas analyzer 16 is arranged at the general outlet of the 1 st-stage vacuum pump and is electrically coupled with the programmable controller 2 and used for monitoring the exhaust gas composition and the exhaust gas pressure at the general outlet of the 1 st-stage vacuum pump.
The general entry of nth level vacuum pump is put through in the export of molten steel waste gas dust remover 22 through the pipeline, and the entry of molten steel waste gas dust remover 22 is put through in the export of molten steel waste gas cooler 21 through the pipeline, and the entry of molten steel waste gas cooler 21 is put through in the export of refining furnace 23, and the income below of refining furnace 23 is the ladle, and wherein the vacuum main valve 24 is installed to the pipeline between molten steel waste gas dust remover 22 and the molten steel waste gas cooler 21, specifically is:
a concentration detector n15-2 electrically coupled to the programmable controller 2 is installed at the inlet of the molten steel waste gas cooler 21, and the concentration detector n15-2 is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas cooler 21;
the inlet of the molten steel waste gas cooler 21 is also provided with a temperature transmitter m13-3 which is electrically coupled with the programmable controller 2, and the temperature transmitter m13-3 is used for monitoring the waste gas temperature at the inlet of the molten steel waste gas cooler 21;
an absolute pressure transmitter m14-5 and a temperature transmitter n13-4 are sequentially arranged on an upstream pipeline of the vacuum main valve 24 along the flowing direction of a medium, wherein the absolute pressure transmitter m14-5 is used for monitoring the vacuum degree of a vacuum system in front of the vacuum main valve 24, and the temperature transmitter n13-4 is used for monitoring the gas temperature in front of the vacuum main valve 24;
an absolute pressure transmitter n14-6, a temperature transmitter s13-5 and a concentration detector s15-3 are sequentially arranged on a downstream pipeline of the vacuum main valve 24 along the flowing direction of a medium, wherein the absolute pressure transmitter n14-6 is used for monitoring the vacuum degree of a vacuum system behind the vacuum main valve 24, the temperature transmitter s13-5 is used for monitoring the gas temperature behind the vacuum main valve 24, and the concentration detector s15-3 is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas dust remover 22.
The wireless transmission module 12 includes a Remote module 3, a router 4, a wireless internet 5, a cloud platform 6 and an RCD module 7, wherein the router 4 is coupled to the Remote module 3, the Remote module 3 is coupled to the programmable controller 2, the RCD module 7 is coupled to the client server 9, and the programmable controller 2 and the client server 9 communicate with each other through the wireless internet 5 and the cloud platform 6.
The wireless transmission module 12 further includes a GPRS module 8, the GPRS module 8 is coupled to the client server 9, and the client server 9 and the client terminal 10 communicate with each other through the GPRS module 8.
The invention introduces advanced internet of things technology into operation monitoring and fault diagnosis of an intelligent mechanical vacuum pump system for steel making, realizes remote interconnection and communication of a data processor and a client server in a cloud platform through wireless internet technology of more than 4G, analyzes and diagnoses the operation state of the mechanical vacuum pump, transmits corresponding data to a field data processor, and alarms and regulates the operation state of the mechanical vacuum pump in real time in the field data processor.
It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples for carrying out the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in practice.
Claims (8)
1. Intelligent mechanical vacuum pump system for steelmaking based on thing networking, its characterized in that includes:
the data acquisition module (11) is used for acquiring the operation parameters of the mechanical vacuum pump system (1);
the programmable controller (2) is used for acquiring data acquired by the data acquisition module (11);
the wireless transmission module (12) is used for transmitting the data sent by the programmable controller (2);
the client server (9) is used for receiving the data sent by the programmable controller (2), analyzing and diagnosing the operation state of the mechanical vacuum pump system (1) according to the received data, sending a diagnosis result to the programmable controller (2) through the wireless transmission module (12), and regulating and controlling the operation state of the mechanical vacuum pump system (1) by the programmable controller (2) according to the received diagnosis result;
and the client terminal (10) is used for receiving the diagnosis result sent by the client server (9).
2. The intelligent mechanical vacuum pump system for steelmaking based on the internet of things of claim 1, wherein the data acquisition module (11) comprises a combination of multiple sensors and a combination of detection devices.
3. The intelligent mechanical vacuum pump system for steelmaking based on the internet of things as claimed in claim 2, wherein the mechanical vacuum pump system (1) is composed of a plurality of vacuum pumps connected in series, and in sequence along the flowing direction of the medium, an nth-stage vacuum pump, an (n-1) th-stage vacuum pump … … rd-stage vacuum pump, a 2 nd-stage vacuum pump and a1 st-stage vacuum pump are arranged, n is a positive integer, each stage of vacuum pump is composed of a plurality of vacuum pumps connected in parallel, each vacuum pump is provided with a multi-sensor combination, wherein the multi-sensor combination comprises:
a temperature transmitter a (13-1) which is arranged at the inlet of each vacuum pump and is electrically coupled with the programmable controller (2) and is used for monitoring the temperature of the molten steel exhaust gas at the inlet of each vacuum pump;
the temperature transmitter b (13-2) is arranged at the outlet of each vacuum pump, is electrically coupled to the programmable controller (2) and is used for monitoring the temperature of the molten steel exhaust gas at the outlet of each vacuum pump;
an absolute pressure transmitter a (14-1) which is arranged at each vacuum pump inlet and is electrically coupled with the programmable controller (2) and is used for monitoring the vacuum degree of each vacuum pump inlet;
the absolute pressure transmitter b (14-2) is arranged at the outlet of each vacuum pump, is electrically coupled to the programmable controller (2) and is used for monitoring the vacuum degree of the outlet of each vacuum pump;
the absolute pressure transmitter c (14-3) is arranged at the general inlet of each stage of vacuum pump, is electrically coupled to the programmable controller (2) and is used for monitoring the general vacuum degree of the general inlet of each stage of vacuum pump;
the absolute pressure transmitter d (14-4) is arranged at the general outlet of the 1 st-level vacuum pump, is electrically coupled to the programmable controller (2), and is used for monitoring the general vacuum degree of the general outlet of the 1 st-level vacuum pump;
a thermometer (19) mounted to the pump chamber of each vacuum pump and electrically coupled to the programmable controller (2) for monitoring the temperature of the cooling water within each vacuum pump;
and the flow meter (18) is mounted on the pump body of each vacuum pump and electrically coupled to the programmable controller (2) and is used for monitoring the flow rate of the cooling water in each vacuum pump.
4. The internet of things-based intelligent mechanical vacuum pump system for steelmaking as claimed in claim 3, wherein said detection device assembly comprises:
the concentration detector m (15-1) is arranged at the general inlet of the nth-stage vacuum pump, is electrically coupled to the programmable controller (2), and is used for monitoring the exhaust gas concentration and the exhaust gas granularity at the general inlet of the nth-stage vacuum pump;
the valve controller (20) is arranged on a valve of an inlet pipeline of each vacuum pump, is electrically coupled to the programmable controller (2), and is used for controlling the medium on-off of each vacuum pump;
the current detection element (17) is arranged on the pump body of each vacuum pump, is electrically coupled to the programmable controller (2), and is used for monitoring the load moment of each vacuum pump;
the vibration detector (25) is arranged on the pump body of each vacuum pump, is electrically coupled to the programmable controller (2), and is used for monitoring the vibration amplitude and the vibration frequency of each vacuum pump;
and the exhaust gas analyzer (16) is arranged at the general outlet of the 1 st-stage vacuum pump and is electrically coupled with the programmable controller (2) and used for monitoring the exhaust gas composition and the exhaust gas pressure at the general outlet of the 1 st-stage vacuum pump.
5. The intelligent mechanical vacuum pump system for steelmaking based on the internet of things of claim 3, wherein a general inlet of the nth-stage vacuum pump is connected to an outlet of the molten steel exhaust gas dust remover (22) through a pipeline, an inlet of the molten steel exhaust gas dust remover (22) is connected to an outlet of the molten steel exhaust gas cooler (21) through a pipeline, an inlet of the molten steel exhaust gas cooler (21) is connected to an outlet of the refining furnace (23), a steel ladle is arranged below the refining furnace (23), and a vacuum main valve (24) is arranged on the pipeline between the molten steel exhaust gas dust remover (22) and the molten steel exhaust gas cooler (21), specifically:
a concentration detector n (15-2) electrically coupled to the programmable controller (2) is installed at the inlet of the molten steel waste gas cooler (21), and the concentration detector n (15-2) is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas cooler (21);
the inlet of the molten steel waste gas cooler (21) is also provided with a temperature transmitter m (13-3) electrically coupled to the programmable controller (2), and the temperature transmitter m (13-3) is used for monitoring the waste gas temperature at the inlet of the molten steel waste gas cooler (21);
an absolute pressure transmitter m (14-5) and a temperature transmitter n (13-4) are sequentially arranged on an upstream pipeline of the vacuum main valve (24) along the flowing direction of a medium, wherein the absolute pressure transmitter m (14-5) is used for monitoring the vacuum degree of a vacuum system in front of the vacuum main valve (24), and the temperature transmitter n (13-4) is used for monitoring the gas temperature in front of the vacuum main valve (24);
an absolute pressure transmitter n (14-6), a temperature transmitter s (13-5) and a concentration detector s (15-3) are sequentially arranged on a downstream pipeline of the vacuum main valve (24) along the flowing direction of a medium, wherein the absolute pressure transmitter n (14-6) is used for monitoring the vacuum degree of a vacuum system behind the vacuum main valve (24), the temperature transmitter s (13-5) is used for monitoring the gas temperature behind the vacuum main valve (24), and the concentration detector s (15-3) is used for monitoring the waste gas concentration and the waste gas granularity at the inlet of the molten steel waste gas dust remover (22).
6. The intelligent mechanical vacuum pump system for steelmaking based on the internet of things of claim 1, wherein the wireless transmission module (12) comprises a Remote module (3), a router (4), a wireless internet (5), a cloud platform (6) and an RCD module (7), wherein the router (4) is coupled to the Remote module (3), the Remote module (3) is coupled to the programmable controller (2), the RCD module (7) is coupled to the client server (9), and the programmable controller (2) and the client server (9) communicate with each other through the wireless internet (5) and the cloud platform (6).
7. The intelligent mechanical vacuum pump system for steelmaking based on the Internet of things of claim 6, wherein the wireless transmission module (12) further comprises a GPRS module (8), the GPRS module (8) is coupled to a client server (9), and the client server (9) and the client terminal (10) communicate with each other through the GPRS module (8).
8. An application of an intelligent mechanical vacuum pump system for steelmaking based on the Internet of things comprises the intelligent mechanical vacuum pump system for steelmaking based on the Internet of things of any one of claims 1 to 7, and is characterized in that:
the method comprises the following steps that a data acquisition module (11) acquires operation parameters of a mechanical vacuum pump system (1), a programmable controller (2) acquires the operation parameters and sends the operation parameters to a client server (9) through a wireless transmission module (12), the client server (9) analyzes and diagnoses the operation parameters and sends a diagnosis result to the programmable controller (2), and the programmable controller (2) regulates and controls the operation state of the mechanical vacuum pump system (1) in real time according to the diagnosis result;
during this time, the client server (9) sends the diagnosis result to the client terminal (10).
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| CN111779675B (en) | 2022-04-29 |
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