CN204479982U - Liquid ammonia storage tank safety monitoring assembly - Google Patents
Liquid ammonia storage tank safety monitoring assembly Download PDFInfo
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- CN204479982U CN204479982U CN201520178415.8U CN201520178415U CN204479982U CN 204479982 U CN204479982 U CN 204479982U CN 201520178415 U CN201520178415 U CN 201520178415U CN 204479982 U CN204479982 U CN 204479982U
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- circuit
- storage tank
- ammonia storage
- liquid ammonia
- safety monitoring
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Abstract
Liquid ammonia storage tank safety monitoring assembly.At present, the kind of sensor of liquid ammonia storage tank safety monitoring aspect is limited, performance is not good, affects the prevention and corntrol of accident.This product composition comprises: monitored liquid ammonia storage tank (1), described monitored liquid ammonia storage tank respectively with liquid level sensor (2), temperature sensor (3), pressure transducer (4), gas concentration sensor (5) connects, described liquid level sensor, described temperature sensor, described pressure transducer, described gas concentration sensor is connected with multi-way switch circuit (6) respectively, described multi-way switch circuit is connected with signal conditioning circuit (7), described signal conditioning circuit is connected with A/D change-over circuit (8), described A/D change-over circuit is connected with microcontroller circuit (9), described microcontroller circuit respectively with liquid crystal display (10), warning circuit (11), communication interface (12) connects.The utility model is used for liquid ammonia storage tank safety monitoring.
Description
technical field:
the utility model relates to a kind of liquid ammonia storage tank safety monitoring assembly.
background technology:
along with the development of society and the progress of science and technology, the consumption of ammonia in work, agricultural production is increasing, and manufacturing enterprise, the applying unit of synthetic ammonia also get more and more.In the transport and storage process of liquefied ammonia, the safety problem such as inflammable, explosive, easy leakage is particularly outstanding.Once have an accident, by causing the serious accident that the harm such as fire, blast, pollution are very large, cause the heavy losses of property and casualties.Therefore, Real-Time Monitoring liquid ammonia storage tank safe condition, and accident critical parameters are analyzed, issue early warning signal in time, perform emergency operation.Can early detection, get rid of accident potential, improve take precautions against natural calamities, the ability of mitigation, prevention, control accident occur, to guarantee health of human body, production safety and national economy sustainable development important in inhibiting.
at present, monitoring technology China industrially has achieved certain achievement, but still existing a lot of not enough, the sensor of liquid ammonia storage tank safety monitoring aspect, limitednumber, performance are not good, and perfect not etc. to the process of Monitoring Data, analysis and simulation.If from introducing at substantial fund, and then increase the production cost of China's ammonia synthesizing industry abroad, reduce product competitiveness, this is all current faced problem demanding prompt solutions.
summary of the invention:
the purpose of this utility model is to provide a kind of liquid ammonia storage tank safety monitoring assembly, to liquid ammonia storage tank status real time monitor, analysis, phonetic warning, sound and light alarm, initiate emergency plan operation etc. is carried out after overflowing, timely searching overflow reason, get rid of accident potential, effectively prevent accident occur or reduce causality loss.
above-mentioned object is realized by following technical scheme:
a kind of liquid ammonia storage tank safety monitoring assembly, its composition comprises: monitored liquid ammonia storage tank, described monitored liquid ammonia storage tank respectively with liquid level sensor, temperature sensor, pressure transducer, gas concentration sensor connects, described liquid level sensor, described temperature sensor, described pressure transducer, described gas concentration sensor is connected with multi-way switch circuit respectively, described multi-way switch circuit is connected with signal conditioning circuit, described signal conditioning circuit is connected with A/D change-over circuit, described A/D change-over circuit is connected with microcontroller circuit, described microcontroller circuit respectively with liquid crystal display, warning circuit, communication interface connects.
described liquid ammonia storage tank safety monitoring assembly, described microcontroller circuit comprises single-chip microcomputer, and described single-chip microcomputer is connected with crystal oscillating circuit, reset circuit, communication interface, program storage, data-carrier store, Interrupt expander circuit, display interface respectively.
described liquid ammonia storage tank safety monitoring assembly, the model of described single-chip microcomputer is STC89C58.
described liquid ammonia storage tank safety monitoring assembly, four and half double integration A/D chip IC L7135 selected by described A/D change-over circuit.
beneficial effect:
the signal that the utility model front end sensors gathers is the level parameter of liquid ammonia storage tank, temperature parameter, pressure parameter and Leakage Gas concentration parameter mainly, the monitoring of liquid ammonia storage tank is first passed through to the sensor collection signal of front end, the signal gathered by sensor is again by multi-way switch, and multi-way switch mainly controls certain road conducting.Signal switched on is nursed one's health by signal conditioning circuit, becomes the signal meeting native system A/D and require, then by the signal after conditioning by A/D change-over circuit, realizes the conversion of analog quantity and digital quantity.Finally signal is sent into microcontroller circuit, control liquid crystal display, warning device, when exceeding the upper lower limit value of setting, will automatic alarm.
cD4052 selected by multi-way switch of the present utility model, and it is one two four multiway analog switch selecting, when applying, mainly through single-chip microcomputer to pin A(10 pin) and B(9 pin) control realize selecting a certain road to input.When selecting the signal input of Y3 road in the input of Dang Cong tetra-road signal, single-chip microcomputer send into 1 should to pin A and B respectively, and this road is selected conducting just, while it is noted that, pin EN(6 pin) when being necessary for 0, passage just can be made to choose effectively.Four road signals front end sensors gathered are respectively by pin Y0 ~ Y3(1 ~ 4, the left side pin of CD4052) input, right side pin Y(3 pin) export the input connecting ICL7135,9,10 pin connect single-chip microcomputer, control corresponding signal and export.
a/D conversion chip of the present utility model selects the ICL7135 of four and half double integrators, and conversion exports as ± 2 ten thousand yards, and be equivalent to the A/D of 14, measuring accuracy is higher, simultaneously good to Hz noise inhibition.
accompanying drawing illustrates:
accompanying drawing 1 is structural representation of the present utility model.
accompanying drawing 2 is microcontroller circuit block schemes in accompanying drawing 1.
accompanying drawing 3 is signal conditioning circuit schematic diagrams in accompanying drawing 1.
accompanying drawing 4 is gas concentration sensor circuit theory diagrams in accompanying drawing 1.
accompanying drawing 5 is multi-way switch circuit schematic diagrams in accompanying drawing 1.
accompanying drawing 6 is LCD liquid crystal display circuit schematic diagrams in accompanying drawing 1.
accompanying drawing 7 is circuit diagrams of sound light alarming circuit in accompanying drawing 1.
accompanying drawing 8 is circuit diagrams of communication interface in accompanying drawing 1.
accompanying drawing 9 is circuit diagrams of A/D change-over circuit in accompanying drawing 1.
accompanying drawing 10 is circuit diagrams of power circuit in accompanying drawing 1.
accompanying drawing 11 is crystal oscillating circuit schematic diagrams in accompanying drawing 2.
accompanying drawing 12 is reset circuit schematic diagrams in accompanying drawing 2.
embodiment:
embodiment 1:
a kind of liquid ammonia storage tank safety monitoring assembly, its composition comprises: monitored liquid ammonia storage tank 1, described monitored liquid ammonia storage tank respectively with liquid level sensor 2, temperature sensor 3, pressure transducer 4, gas concentration sensor 5 connects, described liquid level sensor, described temperature sensor, described pressure transducer, described gas concentration sensor is connected with multi-way switch circuit 6 respectively, described multi-way switch circuit is connected with signal conditioning circuit 7, described signal conditioning circuit is connected with A/D change-over circuit 8, described A/D change-over circuit is connected with microcontroller circuit 9, described microcontroller circuit respectively with liquid crystal display 10, warning circuit 11, communication interface 12 connects.
wherein, power circuit is that described liquid ammonia storage tank safety monitoring assembly is powered, and communication interface is connected with host computer.
embodiment 2:
liquid ammonia storage tank safety monitoring assembly according to embodiment 1, described microcontroller circuit comprises single-chip microcomputer 14, and described single-chip microcomputer is connected with crystal oscillating circuit 15, reset circuit 16, communication interface 18, program storage 19, data-carrier store 20, Interrupt expander circuit 13, display interface 17 respectively.
embodiment 3:
liquid ammonia storage tank safety monitoring assembly according to embodiment 1 or 2, the model of described single-chip microcomputer is STC89C58.
embodiment 4:
liquid ammonia storage tank safety monitoring assembly according to embodiment 1, four and half double integration A/D chip IC L7135 selected by described A/D change-over circuit, and conversion exports as ± 2 ten thousand yards.
Claims (4)
1.
a kind of liquid ammonia storage tank safety monitoring assembly, its composition comprises: monitored liquid ammonia storage tank, it is characterized in that: described monitored liquid ammonia storage tank respectively with liquid level sensor, temperature sensor, pressure transducer, gas concentration sensor connects, described liquid level sensor, described temperature sensor, described pressure transducer, described gas concentration sensor is connected with multi-way switch circuit respectively, described multi-way switch circuit is connected with signal conditioning circuit, described signal conditioning circuit is connected with A/D change-over circuit, described A/D change-over circuit is connected with microcontroller circuit, described microcontroller circuit respectively with liquid crystal display, warning circuit, communication interface connects.
2.
liquid ammonia storage tank safety monitoring assembly according to claim 1, it is characterized in that: described microcontroller circuit comprises single-chip microcomputer, described single-chip microcomputer is connected with crystal oscillating circuit, reset circuit, communication interface, program storage, data-carrier store, Interrupt expander circuit, display interface respectively.
3.
liquid ammonia storage tank safety monitoring assembly according to claim 2, is characterized in that: the model of described single-chip microcomputer is STC89C58.
4.
liquid ammonia storage tank safety monitoring assembly according to claim 1 and 2, is characterized in that: four and half double integration A/D chip IC L7135 selected by described A/D change-over circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178415.8U CN204479982U (en) | 2015-03-27 | 2015-03-27 | Liquid ammonia storage tank safety monitoring assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520178415.8U CN204479982U (en) | 2015-03-27 | 2015-03-27 | Liquid ammonia storage tank safety monitoring assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204479982U true CN204479982U (en) | 2015-07-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520178415.8U Expired - Fee Related CN204479982U (en) | 2015-03-27 | 2015-03-27 | Liquid ammonia storage tank safety monitoring assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204479982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731348A (en) * | 2016-01-28 | 2016-07-06 | 广德宝达精密电路有限公司 | Automatic pumping device for waste etching solution |
-
2015
- 2015-03-27 CN CN201520178415.8U patent/CN204479982U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105731348A (en) * | 2016-01-28 | 2016-07-06 | 广德宝达精密电路有限公司 | Automatic pumping device for waste etching solution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20170327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |