CN107942897A - Hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production - Google Patents
Hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production Download PDFInfo
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- CN107942897A CN107942897A CN201711033462.3A CN201711033462A CN107942897A CN 107942897 A CN107942897 A CN 107942897A CN 201711033462 A CN201711033462 A CN 201711033462A CN 107942897 A CN107942897 A CN 107942897A
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- hydrogen sulfide
- touch
- screen
- control system
- automatic control
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Treating Waste Gases (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Measurement Of Radiation (AREA)
Abstract
Hydrogen sulfide gas automatic control system is by Siemens S7 1200PLC, the Kunlun on-state touch-screen, fixed hydrogen sulfide detection, alarming instrument, axial flow blower, electric control valve, electromagnetic flowmeter composition.Touch-screen, by ethernet communication, controls program to realize the real-time display of sulfureted hydrogen gas concentration and vulcanized sodium flow, record with PLC by the PLC and touch-screen that write certainly；Manual, the automatic control function of the manual of electric control valve, automatic adjustment vulcanized sodium addition and axial flow blower.By controlling the automatic running state of axial flow blower, the power consumption of axial flow blower long-play is saved, realizes the intelligent management discharged in time to hydrogen sulfide gas automatic detection warning, ensure that the life security of producers.
Description
Technical field
It is related to hydrogen sulfide gas in producing for hydrogen calcium the invention belongs to chemical industry equipment to automatically control, is also applied for various poisonous
The field of industrial production of pernicious gas a, hydrogenated carbon, sulfur dioxide etc..
Background technology
Used by existing at present hydrogen sulfide gas monitoring device for the fixed hydrogen sulfide gas monitoring alarm instrument in scene and
Multi channel testing instrument forms, though having sound and light of alarm, cannot record the real time data of sulfureted hydrogen gas concentration, hydrogen sulfide
Gas concentration and the addition of vulcanized sodium do not have to adjust and chain function.In normal productive process, unnecessary vulcanized sodium is not only made
Into waste, the excessive hydrogen sulfide gas of generation can also endanger the life security of producers.
The content of the invention
There is provided a kind of using PLC controls, touch it is an object of the invention to overcome the problems of the above-mentioned prior art
Shield centralized displaying and hydrogen sulfide gas automatic control system in the calcium dihydrogen phosphate production of operation.
The purpose of the present invention is by following technical solution to realize.
Hydrogen sulfide gas automatic control system in a kind of calcium dihydrogen phosphate production, is connected respectively by programmable logic controller (PLC)
Gas detecting and alarming instrument, touch-screen, audible-visual annunciator, wind turbine, electric control valve, electromagnetic flowmeter are formed；
Programmable logic controller (PLC) includes：CPU module, Analog input mModule, switching input module, switching value are defeated
Go out module, analog output module；It is defeated to connect Analog input mModule, switching input module, switching value respectively by CPU module
Go out module, analog output module；
Wherein, gas detecting and alarming instrument is connected with analog output module, and CPU module is directly connected to touch-screen, switch
Amount output module is connected with wind turbine, audible-visual annunciator respectively, and analog output module is connected with electric control valve, analog input
Module is connected with flowmeter, and electric control valve is connected with flowmeter；
The present invention is used and is connected respectively with analog output module no less than a gas detecting and alarming instrument, a CPU mould
Block is equipped with no more than 8 Analog input mModules, and an Analog input mModule connection is no more than 8 hydrogen sulfide gas detection reports
Alert instrument, maximum support 64 hydrogen sulfide detection, alarming instrument, and alarm quantity is configured by production scene demand；Wherein CPU moulds
For block by the way that the H2S values measured by each gas detecting and alarming instrument are compared, maximum is transmitted to analog quantity as PID measured values
Output module.
Programmable logic controller (PLC) of the present invention uses Siemens S7-1200PLC, and touch-screen uses the Kunlun on-state touch-screen,
Gas detecting and alarming instrument uses fixed hydrogen sulfide detection, alarming instrument, and wind turbine uses axial flow blower.
Inventive flow meter uses electromagnetic flowmeter.
Inventive touch screen passes through ethernet communication with PLC.
The present invention working principle and beneficial effect be：
1) concentration of hydrogen sulfide is realized by the PLC program and touch screen program write certainly, the collection of vulcanized sodium flow is changed
And warning output function；The PID regulatory functions of the manual of axial flow blower, automatic running control and vulcanized sodium flow；Tail suction ventilator
With the shutdown automatic switching function of emergency ventilator；Tail suction ventilator, washing pump running state monitoring and with vulcanization sodium pump, vulcanized sodium
The chain input of regulating valve, removing function.
2) change of tracking sulfureted hydrogen gas concentration immediately, live aerofoil fan is controlled according to sulfureted hydrogen gas concentration in real time
Operating status, realize the quick diffusion of hydrogen sulfide gas.The addition of vulcanized sodium is reduced by varying the aperture of vulcanized sodium valve
Amount, reduces the generation of hydrogen sulfide, realizes safety in production.
3) production scene is had using the hydrogen sulfide gas content of fixed hydrogen sulfide gas detector detection scene leakage
Sound-light alarm and signal transporting function.
4) monitoring remote video, the condition of production of monitoring site operating personnel are used.
Brief description of the drawings
Fig. 1 is present system structure diagram；
Fig. 2 is hydrogen sulfide gas Automatic Control Theory figure；
Note：In Fig. 2
Hydrogen sulfide detection, alarming instrument, setting height(from bottom) is away from groove top 0.5m, within charge door 1m
Live aerofoil fan, is installed towards within away from charge pipe 2m, spreads hydrogen sulfide gas.
Embodiment
See Fig. 1, Fig. 2, hydrogen sulfide gas automatic control system in a kind of calcium dihydrogen phosphate production, by Programmable logical controller
Device connects gas detecting and alarming instrument, touch-screen, audible-visual annunciator, wind turbine, electric control valve, electromagnetic flowmeter and forms respectively；
Programmable logic controller (PLC) includes：CPU module, Analog input mModule, analog output module, switching value are defeated
Enter module, switching value output module；It is defeated to connect Analog input mModule, switching input module, switching value respectively by CPU module
Go out module, analog output module；
Wherein, gas detecting and alarming instrument is connected with analog output module, and CPU module is directly connected to touch-screen, switch
Amount output module is connected with wind turbine, audible-visual annunciator respectively, and analog output module is connected with electric control valve, analog input
Module is connected with flowmeter, and electric control valve is connected with flowmeter；
The embodiment of the present invention is connected with analog output module respectively using seven gas detecting and alarming instruments, a CPU mould
Block is equipped with no more than 8 Analog input mModules, and an Analog input mModule connection is no more than 8 hydrogen sulfide gas detection reports
Alert instrument, maximum support 64 hydrogen sulfide detection, alarming instrument, and alarm quantity is configured by production scene demand；Wherein by CPU
For module by the way that the H2S values measured by each gas detecting and alarming instrument are compared, maximum is transmitted to simulation as PID measured values
Measure output module.
Programmable logic controller (PLC) of the present invention uses Siemens S7-1200PLC, and touch-screen uses the Kunlun on-state touch-screen,
Gas detecting and alarming instrument uses fixed hydrogen sulfide detection, alarming instrument, and wind turbine uses axial flow blower.
Inventive flow meter uses electromagnetic flowmeter.
Inventive touch screen passes through ethernet communication with PLC.
Field data is transmitted to touch-screen centralized displaying by the present invention by communication function, and there is data calibration, report to remember
Record, history curve are easy to check and analyze；And operation and control interface is provided by touch-screen, axial flow blower, tail suction ventilator can be directly controlled
Start-stop and operating status show.Hydrogen sulfide detection, alarming instrument sends production scene sulfureted hydrogen gas concentration signal to
PLC, after carrying out conversion and computing by the self-editing program writing of PLC, by monitoring sulfureted hydrogen gas concentration in real time, when concentration is high
Start the diffusion that live axial flow blower accelerates hydrogen sulfide gas, reduce the concentration of hydrogen sulfide gas；Automatically adjust vulcanized sodium valve
Aperture controls the addition of vulcanized sodium；Exhaust fan, washing pump are chain with vulcanization sodium pump, ensure the normal fortune of production equipment
OK, safety in production is realized.
Select the SNG-650-H of Beijing Si Naige Science and Technology Ltd.s production2The fixed hydrogen sulfide detection, alarmings of S
Instrument, Siemens S7-1200PLC, coordinates on-state 15 inch touchscreen in the Kunlun to realize the technology of the present invention.
Implementation process：
1) PLC rack is installed in control room, and wall mounts, and carries out cabinet ground connection.
2) complete PLC rack in and external cabling.System power supply power supply is AC220V；Electromagnetic flowmeter, electric control valve, axis
Flow fan power supply is AC220V；Hydrogen sulfide transmitter is DC24V three-wire systems.
3) PLC, touch screen program are downloaded, hydrogen sulfide range upper limit 200ppm, level-one alarming value 10ppm, two level report are set
Alert value 20ppm, vulcanized sodium flowmeter range 17.7m3/h.
4) the high buzzer warning debugging of concentration of hydrogen sulfide, the debugging of vulcanized sodium flow quantity self-adjusting section.
5) aerofoil fan hand, automatically control debugging.
6) washing pump, exhaust fan and the vulcanization chain debugging of sodium pump；Exhaust fan is debugged with emergency ventilator interconnected lock.
7) network video monitor and control system installation, debugging.
Claims (5)
1. hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production, it is characterised in that：By programmable logic controller (PLC) point
Lian Jie not gas detecting and alarming instrument, touch-screen, audible-visual annunciator, wind turbine, electric control valve, electromagnetic flowmeter composition；
Programmable logic controller (PLC) includes：CPU module, Analog input mModule, analog output module, On-off signal mould
Block, switching value output module；Connect Analog input mModule, analog output module, On-off signal mould respectively by CPU module
Block, switching value output module；
Wherein, gas detecting and alarming instrument is connected with Analog input mModule, and CPU module is connected with touch-screen by Ethernet, is opened
Pass amount output module is connected with wind turbine, audible-visual annunciator respectively, and analog output module is connected with electric control valve, and analog quantity is defeated
Enter module to be connected with flowmeter, electric control valve is connected with flowmeter.
2. hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production according to claim 1, it is characterised in that adopt
It is connected respectively with Analog input mModule with no less than one gas detecting and alarming instrument, a CPU module is equipped with no more than 8 moulds
Analog quantity input module, an Analog input mModule connection are no more than 8 hydrogen sulfide detection, alarming instrument, and maximum supports 64
Hydrogen sulfide detection, alarming instrument.
3. hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production according to claim 1, it is characterised in that can
Programmed logic controller uses Siemens S7-1200PLC, and touch-screen uses the Kunlun on-state touch-screen, and gas detecting and alarming instrument is adopted
With fixed hydrogen sulfide detection, alarming instrument, wind turbine uses axial flow blower.
4. hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production according to claim 1, it is characterised in that its
Flowmeter uses electromagnetic flowmeter.
5. hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production according to claim 1, it is characterised in that its
Touch-screen passes through ethernet communication with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033462.3A CN107942897A (en) | 2017-10-30 | 2017-10-30 | Hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711033462.3A CN107942897A (en) | 2017-10-30 | 2017-10-30 | Hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production |
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| Publication Number | Publication Date |
|---|---|
| CN107942897A true CN107942897A (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711033462.3A Pending CN107942897A (en) | 2017-10-30 | 2017-10-30 | Hydrogen sulfide gas automatic control system in calcium dihydrogen phosphate production |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654526U (en) * | 2010-02-02 | 2010-11-24 | 中钢集团鞍山热能研究院有限公司 | PLC control system of coke oven for coal gas heating test |
| CN202053434U (en) * | 2011-04-13 | 2011-11-30 | 泰安市利德容器制造有限公司 | Fully automatic vertical vulcanizing tank control system |
| CN206057268U (en) * | 2016-07-04 | 2017-03-29 | 杭州巨骐信息科技股份有限公司 | Hydrogen sulfide intelligent monitor system based on CAN communication bus measurement and control system of tunnel |
| CN206594115U (en) * | 2017-04-01 | 2017-10-27 | 尹峰 | A kind of natural gas station Hydrothion concentration detection device |
-
2017
- 2017-10-30 CN CN201711033462.3A patent/CN107942897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201654526U (en) * | 2010-02-02 | 2010-11-24 | 中钢集团鞍山热能研究院有限公司 | PLC control system of coke oven for coal gas heating test |
| CN202053434U (en) * | 2011-04-13 | 2011-11-30 | 泰安市利德容器制造有限公司 | Fully automatic vertical vulcanizing tank control system |
| CN206057268U (en) * | 2016-07-04 | 2017-03-29 | 杭州巨骐信息科技股份有限公司 | Hydrogen sulfide intelligent monitor system based on CAN communication bus measurement and control system of tunnel |
| CN206594115U (en) * | 2017-04-01 | 2017-10-27 | 尹峰 | A kind of natural gas station Hydrothion concentration detection device |
Non-Patent Citations (1)
| Title |
|---|
| 郭西进 等: "煤矿硫化氢治理监控系统", 《煤炭技术》 * |
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Application publication date: 20180420 |
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