CN204423186U - Liquid chlorine gasification device pressure automatic control system - Google Patents
Liquid chlorine gasification device pressure automatic control system Download PDFInfo
- Publication number
- CN204423186U CN204423186U CN201420746738.8U CN201420746738U CN204423186U CN 204423186 U CN204423186 U CN 204423186U CN 201420746738 U CN201420746738 U CN 201420746738U CN 204423186 U CN204423186 U CN 204423186U
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- CN
- China
- Prior art keywords
- liquid chlorine
- chlorine
- main frame
- pressure sensor
- gasification device
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Abstract
The utility model relates to technical field of metallurgical production, discloses a kind of liquid chlorine gasification device pressure automatic control system.It comprises liquid chlorine gasification device, Liquid chlorine pipeline, chlorine conveying pipelines, steam conveying pipe, Liquid chlorine pipeline is provided with liquid chlorine stop valve successively, liquid chlorine variable valve, chlorine conveying pipelines is provided with chlorine gas pressure sensor, steam conveying pipe is provided with steam pressure sensor, the pressure signal detected is transferred to main frame by chlorine gas pressure sensor, main frame sends valve opening control signal to liquid chlorine variable valve, control the aperture of liquid chlorine variable valve, steam pressure sensor by the vapor pressure Signal transmissions that detects to main frame, main frame sends liquid chlorine stop valve folding control signal, control the folding of liquid chlorine stop valve.The function that the utility model has chlorine gas pressure on-line checkingi, pressure regulates automatically, can realize liquid chlorine gasification device and automatically protect when steam decompression or low pressure, and a key cuts off the input of liquid chlorine, improves the security performance of production equipment.
Description
Technical field
The utility model relates to technical field of metallurgical production, specifically one liquid chlorine gasification device pressure automatic control system in hydrometallurgy is produced.
Background technology
Chlorine gas pressure control system is the control device being changed to gaseous state for chlorine in non-ferrous metal hydrometallurgical processes by liquid state through heating rotary.The mode that can realize chlorine gas pressure control conventional at present has the mode such as manual control mode, the control of PID regulator, manually operated mode mainly adopts gaseous chlorine valve opening to realize the control of chlorine gas pressure, it is large to there is labor intensity of operating staff in this mode, and security is not high, control accuracy is low, chlorine gas pressure can not realize when fluctuating controlling in time; Although PID regulator controls automatically to control chlorine gas pressure, because system exists larger hysteresis quality in control procedure, build-up of pressure parameter is not easy to adjust, transit time is long, control accuracy not high-technology defect.Above-mentioned control method in liquid chlorine vaporizing process when steam decompression or without pressure time,, easily there is liquid chlorine and enter in gaseous state pipeline, cause the instability of technique and the damage of equipment in the efficiency and of low quality of gasification, there is the potential safety hazard of personal injury, security performance is not high simultaneously; When gaseous state chlorine gas leakage occurring and needing to stop in emergency, control system cannot fast shut-off automatically, and control not in time, exists potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of liquid chlorine gasification device pressure automatic control system; can according to detected liquid chlorine gasification device ducted pressure size; adopt FUZZY ALGORITHMS FOR CONTROL; control liquid chlorine airshed; stabilized chlorine atmospheric pressure, has the function that plant characteristic identifies automatically, heating steam decompression is protected automatically.
To achieve these goals, technical solution adopted in the utility model is:
A kind of liquid chlorine gasification device pressure automatic control system, Liquid chlorine pipeline, chlorine conveying pipelines, steam conveying pipe that it comprises liquid chlorine gasification device, is connected with liquid chlorine gasification device, described Liquid chlorine pipeline is provided with successively liquid chlorine stop valve, liquid chlorine variable valve, described liquid chlorine stop valve is connected with the terminal board in main control box by the second control cables, described terminal board is connected with main frame, described main frame sends valve folding control signal to described liquid chlorine stop valve, controls the folding of described liquid chlorine stop valve; Described liquid chlorine variable valve is connected with described terminal board by the first control cables, and described main frame sends valve opening control signal to described liquid chlorine variable valve, controls the aperture of described liquid chlorine variable valve; Described steam conveying pipe is provided with steam pressure sensor, the output terminal of described steam pressure sensor is connected with described terminal board by secondary shielding cable, detected vapor pressure Signal transmissions is given described main frame by described steam pressure sensor, described main frame according to received vapor pressure signal, output valve folding control signal; Described chlorine conveying pipelines is provided with chlorine gas pressure sensor, the output terminal of described chlorine gas pressure sensor is connected with described terminal board by the first shielded cable, described chlorine gas pressure sensor by detected chlorine gas pressure Signal transmissions give described main frame, described main frame according to received chlorine gas pressure signal through fuzzy operation output valve opening control signal.
As further improvement of the utility model, described terminal board is provided with in described main control box, main frame, power switch, DC power supplier, touch-screen display, solid-state relay, the input end of described DC power supplier is connected with AC power by power switch, the output terminal of described DC power supplier is connected with described main frame, described main frame is connected with described touch display screen, described main frame is also connected with the second control cables by solid-state relay, described solid-state relay is connected with described AC power, it is described main frame in main control box that alternating current is converted to direct current by described DC power supplier, touch display screen provides direct supply.
Further improve as of the present utility model, described chlorine gas pressure sensor is diaphragm type sensor, and diaphragm material is Hastelloy.
Further improving as of the present utility model, is PTFE material with the material of liquid chlorine surface of contact in described liquid chlorine variable valve, liquid chlorine stop valve.
Principle of work of the present utility model is: liquid chlorine enters liquid chlorine gasification device by Liquid chlorine pipeline and gasifies, export from chlorine conveying pipelines after liquid chlorine being become gaseous state chlorine, chlorine conveying pipelines is provided with chlorine gas pressure sensor, the pressure signal detected is converted to 4-20mA standard meter signal by chlorine gas pressure sensor, main frame is transferred to by the first shielded cable, main frame shows after input signal is converted to chlorine gas pressure value on touch display screen, difference between the threshold value that main frame presets according to chlorine gas pressure measured value and system, the valve opening control signal of 4-20mA is exported through fuzzy operation, valve opening control signal shows at touch display screen, valve opening control signal is transferred to described liquid chlorine variable valve by the first control cables simultaneously, realize the control of liquid chlorine variable valve valve opening, reach the function of stabilized chlorine atmospheric pressure, steam conveying pipe is provided with steam pressure sensor, the vapor pressure detected is converted to 4-20mA standard meter signal by described steam pressure sensor, by secondary shielding cable transmission to main frame, input signal is converted to vapour pressure force value by main frame, touch display screen shows, the vapor pressure threshold value that main frame presets according to vapor pressure measured value and system compares, when vapor pressure is lower than set vapor pressure threshold value, main frame sends the control signal opening liquid chlorine stop valve, liquid chlorine stop valve disconnects, no longer liquid chlorine will be inputted in liquid chlorine gasification device, when vapor pressure is higher than set vapor pressure threshold value, main frame sends the control signal of closed liquid chlorine stop valve, liquid chlorine stop valve closes, and will input liquid chlorine in liquid chlorine gasification device, realizes the automatic protection of the liquid chlorine gasification device because of the insufficient pressure in steam conveying pipe or pressure-less state.
The beneficial effects of the utility model are:
(1) by use of the present utility model, the function making liquid chlorine gasification device also have pressure while having chlorine gas pressure on-line checkingi function automatically to regulate, control;
(2) have employed fuzzy type pid control module in this control system, solve the defect that parameter in traditional PID control process is not easily adjusted, transit time is long.
(3) the utility model has the automatic protection functions of the liquid chlorine gasification device of insufficient pressure in steam conveying pipe or pressure-less state, solve in production run due to steam decompression or vapor pressure not enough time, liquid chlorine enters gaseous state chlorine conveying pipelines, cause the defect that liquid chlorine vaporizing is of low quality, improve the security performance of production equipment;
(4) when breaking down in producing, by the emergency stop push button on main frame touch-screen, main frame sends the control signal opening liquid chlorine stop valve, liquid chlorine stop valve disconnects, no longer liquid chlorine will be inputted in liquid chlorine gasification device, realization is stopped in emergency, and a key cuts off chlorine, prevents the generation of security incident;
(5) instrument in the utility model main control box adopts modular construction, and installation manufactures easy, failure rate is low, and maintenance is convenient.
accompanying drawing illustrates:
Fig. 1 is system construction drawing of the present utility model;
Fig. 2 is the layout wiring diagram in Fig. 1 in main control box;
In figure: 1, Liquid chlorine pipeline, 2, liquid chlorine stop valve, 3, liquid chlorine variable valve, 4, liquid chlorine gasification device, 5, chlorine conveying pipelines, 6, steam conveying pipe, 7, steam pressure sensor, 8, chlorine gas pressure sensor, 9, the first shielded cable, 10, secondary shielding cable, the 11, first control cables, 12, the second control cables, 13, AC power, 14, cable seal head, 15, main control box, 16, terminal board, 17, power switch, 18, solid-state relay, 19, DC power supplier, 20, touch display screen, 21, main frame.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of liquid chlorine gasification device pressure automatic control system as shown in Figure 1 and Figure 2, it comprises liquid chlorine gasification device 4, the Liquid chlorine pipeline 1 be connected with liquid chlorine gasification device 4, chlorine conveying pipelines 5, steam conveying pipe 6, Liquid chlorine pipeline 1 is provided with successively liquid chlorine stop valve 2, liquid chlorine variable valve 3, liquid chlorine stop valve 2 is connected with the terminal board 16 in main control box 15 by the second control cables 12, terminal board 16 is connected with main frame 21, main frame 21 pairs of liquid chlorine stop valves 2 send valve folding control signal, control the folding of liquid chlorine stop valve 2; Liquid chlorine variable valve 3 is connected with terminal board 16 by the first control cables 11, and main frame 21 pairs of liquid chlorine variable valve 3 send valve opening control signal, controls the aperture of liquid chlorine variable valve 3; Steam conveying pipe 6 is provided with steam pressure sensor 7, the output terminal of steam pressure sensor 7 is connected with terminal board 16 by secondary shielding cable 10, steam pressure sensor 7 by detected vapor pressure Signal transmissions to main frame 21, main frame 21 according to received vapor pressure signal, output valve folding control signal; Chlorine conveying pipelines 5 is provided with chlorine gas pressure sensor 8, the output terminal of chlorine gas pressure sensor 8 is connected with terminal board 16 by the first shielded cable 10, chlorine gas pressure sensor 8 by detected chlorine gas pressure Signal transmissions to main frame 21, main frame 21 according to received chlorine gas pressure signal through fuzzy operation output valve opening control signal.
Terminal board 16 is provided with in main control box 15, main frame 21, power switch 17, DC power supplier 19, touch-screen display 20, solid-state relay 18, the input end of DC power supplier 19 is connected with AC power 13 by power switch 17, the output terminal of DC power supplier 19 is connected with main frame 21, main frame 21 is connected with touch display screen 20, main frame 21 is also connected with the second control cables 12 by solid-state relay 18, solid-state relay 18 is connected with AC power 13, alternating current is converted to direct current for the main frame 21 in main control box 15 and touch display screen 20 by DC power supplier 19 provides direct supply.
Chlorine gas pressure sensor 8 is diaphragm type sensor, and diaphragm material is Hastelloy.Be PTFE material with the material of liquid chlorine surface of contact in liquid chlorine variable valve 3, liquid chlorine stop valve 2.
The utility model in actual use, liquid chlorine enters liquid chlorine gasification device 4 by Liquid chlorine pipeline 1 and gasifies, export from chlorine conveying pipelines 5 after liquid chlorine is become gaseous state chlorine, chlorine conveying pipelines 5 is provided with chlorine gas pressure sensor 8, the pressure signal detected is converted to 4-20mA standard meter signal by chlorine gas pressure sensor 8, main frame 21 is transferred to by the first shielded cable 9, main frame 21 shows after input signal being converted to chlorine gas pressure value on touch display screen 20, difference between the threshold value that main frame 21 presets according to chlorine gas pressure measured value and system, the valve opening control signal of 4-20mA is exported through fuzzy operation, valve opening control signal shows at touch display screen 20, valve opening control signal is transferred to described liquid chlorine variable valve 3 by the first control cables 11 simultaneously, realize the control of liquid chlorine variable valve 3 valve opening, reach the function of stabilized chlorine atmospheric pressure, steam conveying pipe 6 is provided with steam pressure sensor 7, the vapor pressure detected is converted to 4-20mA standard meter signal by steam pressure sensor 7, main frame 21 is transferred to by secondary shielding cable 10, input signal is converted to vapour pressure force value by main frame 21, touch display screen 20 shows, the vapor pressure threshold value that main frame 21 presets according to vapor pressure measured value and system compares, when vapor pressure is lower than set vapor pressure threshold value, main frame 21 is judged as steam decompression or without pressure, main frame 21 sends the control signal opening liquid chlorine stop valve 2, liquid chlorine stop valve 2 disconnects, no longer liquid chlorine will be inputted in liquid chlorine gasification device 4, when vapor pressure is higher than set vapor pressure threshold value, main frame 21 is judged as that vapor pressure is normal, main frame 21 sends the control signal of closed liquid chlorine stop valve 2, liquid chlorine stop valve 2 closes, to liquid chlorine be inputted in liquid chlorine gasification device 4, realize the automatic protection of the liquid chlorine gasification device because of the insufficient pressure in steam conveying pipe or pressure-less state.When there is chlorine leakage in production run or need to stop in emergency, operating personnel press the emergency stop push button on touch display screen 20, main frame 21 sends the control signal opening liquid chlorine stop valve 2, liquid chlorine stop valve 2 disconnects, no longer will input liquid chlorine in liquid chlorine gasification device 4, and realize stopping in emergency.
The utility model overcomes manual control out of true, the automatic controling parameters of PID is adjusted loaded down with trivial details, settling time is long, during when vapor pressure decompression with without pressure, gasification result is bad, easily causes liquid chlorine to enter in liquid chlorine gasification device and causes security incident, in emergency circumstances adopt traditional control mode, the shortcomings such as chlorine length break time, for hydrometallurgy process chlorine gas pressure controls to provide control system accurately and reliably.
Claims (4)
1. a liquid chlorine gasification device pressure automatic control system, it comprises liquid chlorine gasification device (4), the Liquid chlorine pipeline (1) be connected with liquid chlorine gasification device (4), chlorine conveying pipelines (5), steam conveying pipe (6), it is characterized in that: described Liquid chlorine pipeline (1) is provided with liquid chlorine stop valve (2) successively, liquid chlorine variable valve (3), described liquid chlorine stop valve (2) is connected with the terminal board (16) in main control box (15) by the second control cables (12), described terminal board (16) is connected with main frame (21), described main frame (21) sends valve folding control signal to described liquid chlorine stop valve (2), control the folding of described liquid chlorine stop valve (2), described liquid chlorine variable valve (3) is connected with described terminal board (16) by the first control cables (11), and described main frame (21) sends valve opening control signal to described liquid chlorine variable valve (3), controls the aperture of described liquid chlorine variable valve (3), described steam conveying pipe (6) is provided with steam pressure sensor (7), the output terminal of described steam pressure sensor (7) is connected with described terminal board (16) by secondary shielding cable (10), detected vapor pressure Signal transmissions is given described main frame (21) by described steam pressure sensor (7), described main frame (21) according to received vapor pressure signal, output valve folding control signal, described chlorine conveying pipelines (5) is provided with chlorine gas pressure sensor (8), the output terminal of described chlorine gas pressure sensor (8) is connected with described terminal board (16) by the first shielded cable (10), described chlorine gas pressure sensor (8) by detected chlorine gas pressure Signal transmissions give described main frame (21), described main frame (21) according to received chlorine gas pressure signal through fuzzy operation output valve opening control signal.
2. liquid chlorine gasification device pressure automatic control system according to claim 1, it is characterized in that: in described main control box (15), be provided with described terminal board (16), main frame (21), power switch (17), DC power supplier (19), touch-screen display (20), solid-state relay (18), the input end of described DC power supplier (19) is connected with AC power (13) by power switch (17), the output terminal of described DC power supplier (19) is connected with described main frame (21), described main frame (21) is connected with described touch display screen (20), described main frame (21) is also connected with the second control cables (12) by solid-state relay (18), described solid-state relay (18) is connected with described AC power (13), alternating current is converted to direct current for main frame (21) described in each in main control box (15) by described DC power supplier (19), touch display screen (20) provides direct supply.
3. liquid chlorine gasification device pressure automatic control system according to claim 1, is characterized in that: described chlorine gas pressure sensor (8) is diaphragm type sensor, and diaphragm material is Hastelloy.
4. liquid chlorine gasification device pressure automatic control system according to claim 1, is characterized in that: be PTFE material with the material of liquid chlorine surface of contact in described liquid chlorine variable valve (3), liquid chlorine stop valve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746738.8U CN204423186U (en) | 2014-12-03 | 2014-12-03 | Liquid chlorine gasification device pressure automatic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420746738.8U CN204423186U (en) | 2014-12-03 | 2014-12-03 | Liquid chlorine gasification device pressure automatic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204423186U true CN204423186U (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420746738.8U Withdrawn - After Issue CN204423186U (en) | 2014-12-03 | 2014-12-03 | Liquid chlorine gasification device pressure automatic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204423186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615168A (en) * | 2014-12-03 | 2015-05-13 | 金川集团股份有限公司 | Automatic control system for pressure of liquid chlorine gasification device |
-
2014
- 2014-12-03 CN CN201420746738.8U patent/CN204423186U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615168A (en) * | 2014-12-03 | 2015-05-13 | 金川集团股份有限公司 | Automatic control system for pressure of liquid chlorine gasification device |
| CN104615168B (en) * | 2014-12-03 | 2017-04-05 | 金川集团股份有限公司 | Liquid chlorine gasification device pressure automatic control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150624 Effective date of abandoning: 20170405 |
|
| AV01 | Patent right actively abandoned |