CN204062491U - A kind of liquid material automatic discharging system - Google Patents
A kind of liquid material automatic discharging system Download PDFInfo
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- CN204062491U CN204062491U CN201420363428.8U CN201420363428U CN204062491U CN 204062491 U CN204062491 U CN 204062491U CN 201420363428 U CN201420363428 U CN 201420363428U CN 204062491 U CN204062491 U CN 204062491U
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- plc control
- control module
- liquid material
- discharge pipe
- testing module
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Abstract
The utility model discloses a kind of liquid material automatic discharging system, comprise discharge pipe, described discharge pipe is provided with product pump, mortor operated valve and testing module; Described testing module is electrically connected with PLC control module, described testing module induction discharge pipe internal pressure, and sending pressure signal to described PLC control module, described PLC control module, according to pressure signal, controls described mortor operated valve opening and closing and described product pump start and stop.The utility model adopts the combination of testing module, PLC control module and alarm, and complete the automation discharging operations of liquid material, detect in real time, process in real time, real-time response, automaticity is higher, and Safety performance is stronger, and decreases personnel labor intensity.
Description
Technical field
The utility model relates to the automation issues of liquid material conveying, particularly relates to a kind of liquid material automatic discharging system.
Background technique
Use liquid material in a large number in industry, the producer usually needs the liquid material shipped by tank car to be discharged in material storing tank and saves backup after concentrating and buying liquid material.For the liquid ammonium nitrate that civil explosive industry uses, the method of unloading of the liquid ammonium nitrate of present stage is that the feed pipe of the discharge pipe of tank car and liquid ammonium nitrate holding vessel first connects by discharging person, open tank car discharging valve, then the charging mortor operated valve using intercom phone notice monitoring chamber to open liquid ammonium holding vessel is entered in worker-house, then product pump is started, carry out the discharge operation of liquid ammonium nitrate, after discharging, discharging person again enters in worker-house and notifies that monitoring chamber is closed charging solenoid valve and stops product pump.The shortcoming of this technology is:
1, need discharging person to enter worker-house notice monitoring chamber and carry out associative operation, carry out staffing due to worker-house and control, if worker-house is full state just, the entering of discharging person can be caused overcrowding, violates administrative provisions.
2, product pump idle running for a long time product pump must be stopped in time after discharging, because can be burnt.Discharging person is so necessarily required to keep a close eye on discharge process, simultaneously monitoring chamber close fit.There is the risk of burning product pump.
Model utility content
It is higher that the technical problems to be solved in the utility model is to provide a kind of automaticity, reduces the liquid material automatic discharging system of personnel labor intensity.
In order to solve the problems of the technologies described above, the utility model provides a kind of liquid material automatic discharging system, comprises discharge pipe, described discharge pipe is provided with product pump, mortor operated valve and testing module; Described testing module is electrically connected with PLC control module, described testing module induction discharge pipe internal pressure, and sending pressure signal to described PLC control module, described PLC control module, according to pressure signal, controls described mortor operated valve opening and closing and described product pump start and stop.
Further, be also connected with between described testing module and PLC control module and pressure signal is carried out filtering and amplifying signal puocessing module, and analogue signal is converted to the A/D modular converter of digital signal.
Further, described PLC control module controls described mortor operated valve and product pump by electromagnetic relay, when the pressure signal value that described testing module sends reaches unlatching threshold values, described PLC control module controls electromagnetic relay adhesive, opens described mortor operated valve and starts described product pump; When the pressure signal value that described testing module sends reach close threshold values time, described PLC control module simultaneously or time delay one scheduled time, controls electromagnetic relay and disconnects, close described mortor operated valve and stop described product pump.
Further, described PLC control module is also connected with audible-visual annunciator, and when the pressure signal value that described testing module sends reaches closedown threshold values or is continuously same non-zero pressure value, described PLC control module controls described audible-visual annunciator and gives the alarm.
Further, described testing module comprises the pressure transducer responding to described discharge pipe pressure.
Further, described discharge pipe one end is fixed in liquid material holding vessel, and the other end is provided with flange connector.
The utility model adopts the combination of testing module, PLC control module and alarm, and complete the automation discharging operations of liquid material, detect in real time, process in real time, real-time response, automaticity is higher, and Safety performance is stronger, and decreases personnel labor intensity.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the data processing module figure between testing module of the present utility model and PLC control module.
In figure: 1, discharge pipe; 2, testing module; 3, mortor operated valve; 4, product pump; 5, PLC control module; 6, audible-visual annunciator; 7, flange connector; 8, signal processing module; 9, A/D modular converter.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, and to make those skilled in the art better can understand the utility model being implemented, but illustrated embodiment is not as to restriction of the present utility model.
As shown in Figure 1, a kind of liquid material automatic discharging system of the utility model, comprise discharge pipe 1, discharge pipe 1 can be the material such as plastics, metal.Discharge pipe 1 is provided with product pump 4, mortor operated valve 3 and testing module 2; Product pump 4 is for supplying power for the liquid carrying in pipeline, and mortor operated valve 3 is for opening or stop the conveying of liquid material, and testing module 2 is for detecting the state of liquid material in pipeline.In addition, testing module 2 is also electrically connected with PLC control module 5, and testing module 2 responds to discharge pipe 1 internal pressure, sends pressure signal to PLC control module 5, and PLC control module 5, according to pressure signal, controls mortor operated valve 3 opening and closing and product pump 4 start and stop.
In order to make PLC control module 5 pressure sensor signal more accurately, between testing module 2 and PLC control module, 5 also can be connected with pressure signal is carried out filtering and amplifying signal puocessing module 8, and analogue signal is converted to the A/D modular converter 9 of digital signal, as shown in Figure 2.
PLC control module 5 can adopt the modes such as programming instruction to control mortor operated valve 3 and product pump 4, in preferred implementation, PLC control module 5 controls mortor operated valve 3 and product pump 4 by electromagnetic relay, when the pressure signal value that testing module 2 sends reaches unlatching threshold values, PLC control module 5 controls electromagnetic relay adhesive, opens mortor operated valve 3 and starts product pump 4; When the pressure signal value that testing module 2 sends reach close threshold values time, PLC control module 5 simultaneously or time delay one scheduled time, controls electromagnetic relay and disconnects, close mortor operated valve 3 and also stop product pump 4.Through test of many times operation, unlatching threshold values of the present utility model is set as that 0.02MPa is more appropriate, closes threshold values and adopts 0.005MPa to be advisable.In addition, when closing threshold values and being non-vanishing, if PLC control signal receives the pressure signal of closing threshold values disconnect electromagnetic relay at once, may cause and still have partial material not unload, so time answer time delay certain hour, just can guarantee that liquid material discharging is complete, time delay length should be determined according to actual production, is advisable with 15 seconds.
As one preferably mode of execution, PLC control module 4 also can be connected with audible-visual annunciator 6, and when the pressure signal value that testing module 2 sends reaches closedown threshold values or is continuously same non-zero pressure value, PLC control module 5 controls audible-visual annunciator 6 and gives the alarm.Reach and close threshold values warning, be to remind operator to prepare to disconnect the connection of haulage vehicle.In addition, if discharging is smooth, the pressure of discharge pipe should taper off trend, therefore when the pressure durations of discharge pipe is same non-zero pressure value, be namely likely that blocking appears in pipeline, now, audible-visual annunciator gives the alarm, and prompting operator checks pipeline.In a kind of preferred implementation, the warning that discharging is complete and the blocking warning different warning sound of employing and flash of light, with easy-to-operat, person judges.
Testing module 2 adopts pipeline pressure as detection medium, and therefore testing module 2 should comprise the pressure transducer of induction discharge pipe pressure certainly, and pressure transducer is the mature technology of related domain, is not described in detail in this.The two ends of discharge pipe can be all be flexibly connected, and preferably, discharge pipe 1 one end is fixed in liquid material holding vessel, and the other end is provided with flange connector 7, and flange connector 7 transports the vehicle of material for being flexibly connected.
The utility model, by testing module 2 and PLC control module 5, after detecting that discharging starts, can open charging mortor operated valve 3 and product pump 4 automatically; After detecting that discharging terminates, automatically can close charging mortor operated valve 3 and product pump 4, discharging person can be made need not to enter worker-house notice monitoring chamber, decrease the risk that product pump burns simultaneously.
Herein still for liquid ammonium nitrate, working principle of the present utility model and process are described, after the tank car pipeline of transport liquid material and liquid ammonium nitrate holding vessel pipeline connect, tank car blowing, so certainly have a pressure in pipeline, as long as this pressure detected, and just can control when this pressure reaches certain value to open mortor operated valve and product pump.When testing module senses that pipeline has pressure, by the Signal transmissions that detects to signal processing module, through signal processing module filtering and amplification.Be sent to A/D modular converter and convert curtage analog amount to digital signal, subsequently, be sent in PLC control module of the present utility model.Before this, the threshold values of PLC control module and program have preset and have write, as long as the signal received is more than or equal to unlatching threshold values, with regard to control relay adhesive, open mortor operated valve and product pump, start discharging work, do not need personnel deliberately to go to stare at.When discharging draws to an end, in pipeline, pressure falls after rise gradually, the signal that testing module transmission is returned also can diminish gradually, when reaching the closedown threshold values of setting, PLC control module control relay disconnects, and closes mortor operated valve and product pump, and start alarm module simultaneously or after postponing a period of time interval, i.e. audible-visual annunciator, reminds discharging person's discharging complete, dismounting pipeline.The utility model, except automatically controlling discharging and starting and terminate, can also play protection forewarning function.When the pressure detected in discharge process diminishes, but time non-vanishing, can infer that pipeline or tank car exist ammonium nitrate crystal blocking, PLC control module drives audible-visual annunciator at once, reminds operator to check pipeline.
Advantage of the present utility model:
The first, automaticity is higher, because have employed real-time Data Detection and process.
The second, minimizing personnel enter limit employee room, reduce personnel labor intensity.
Three, Safety performance improves.Because in conjunction with Data Detection and puocessing module, have employed alarm simultaneously, energy and alarm when pipeline pressure is abnormal.
Four, prevent from product pump from dallying to burn.
The above embodiment is only for absolutely proving the preferred embodiment that the utility model is lifted, and protection domain of the present utility model is not limited thereto.The equivalent alternative or conversion that those skilled in the art do on the utility model basis, all within protection domain of the present utility model.Protection domain of the present utility model is as the criterion with claims.
Claims (6)
1. a liquid material automatic discharging system, comprises discharge pipe, it is characterized in that, described discharge pipe is provided with product pump, mortor operated valve and testing module; Described testing module is electrically connected with PLC control module, described testing module induction discharge pipe internal pressure, and sending pressure signal to described PLC control module, described PLC control module, according to pressure signal, controls described mortor operated valve opening and closing and described product pump start and stop.
2. liquid material automatic discharging system according to claim 1, it is characterized in that, also be connected with between described testing module and PLC control module and pressure signal is carried out filtering and amplifying signal puocessing module, and analogue signal is converted to the A/D modular converter of digital signal.
3. liquid material automatic discharging system according to claim 2, it is characterized in that, described PLC control module controls described mortor operated valve and product pump by electromagnetic relay, when the pressure signal value that described testing module sends reaches unlatching threshold values, described PLC control module controls electromagnetic relay adhesive, opens described mortor operated valve and starts described product pump; When the pressure signal value that described testing module sends reach close threshold values time, described PLC control module simultaneously or time delay one scheduled time, controls electromagnetic relay and disconnects, close described mortor operated valve and stop described product pump.
4. liquid material automatic discharging system according to claim 3, it is characterized in that, described PLC control module is also connected with audible-visual annunciator, when the pressure signal value that described testing module sends reaches closedown threshold values or is continuously same non-zero pressure value, described PLC control module controls described audible-visual annunciator and gives the alarm.
5. the liquid material automatic discharging system according to any one of Claims 1 to 4, is characterized in that, described testing module comprises the pressure transducer responding to described discharge pipe pressure.
6. the liquid material automatic discharging system according to any one of Claims 1 to 4, is characterized in that, described discharge pipe one end is fixed in liquid material holding vessel, and the other end is provided with flange connector.
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CN201420363428.8U CN204062491U (en) | 2014-07-02 | 2014-07-02 | A kind of liquid material automatic discharging system |
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CN201420363428.8U CN204062491U (en) | 2014-07-02 | 2014-07-02 | A kind of liquid material automatic discharging system |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110242863A (en) * | 2019-07-16 | 2019-09-17 | 成都中住光纤有限公司 | A kind of concentration feeding system of booster monitoring |
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2014
- 2014-07-02 CN CN201420363428.8U patent/CN204062491U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110242863A (en) * | 2019-07-16 | 2019-09-17 | 成都中住光纤有限公司 | A kind of concentration feeding system of booster monitoring |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20170511 Address after: 527227, Yunfu City, Guangdong province Luoding City, Liuzhou Village Patentee after: GUANGDONG HONGDA LUOHUA CIVIL EXPLOSIVE CO.,LTD. Address before: Songgang Stone Town Jieshi Tang Lu Nanhai District 528200 Guangdong city of Foshan Province Patentee before: GUANGDONG MINGHUA MACHINERY Co.,Ltd. |
|
TR01 | Transfer of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |
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CF01 | Termination of patent right due to non-payment of annual fee |