CN207473428U - One kind is based on PLC automatic nitrogen control systems - Google Patents
One kind is based on PLC automatic nitrogen control systems Download PDFInfo
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- CN207473428U CN207473428U CN201721345843.0U CN201721345843U CN207473428U CN 207473428 U CN207473428 U CN 207473428U CN 201721345843 U CN201721345843 U CN 201721345843U CN 207473428 U CN207473428 U CN 207473428U
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- plc
- nitrogen
- control system
- control systems
- regulating valve
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 57
- 230000001105 regulatory effect Effects 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000009530 blood pressure measurement Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052770 Uranium Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003020 moisturizing effect Effects 0.000 description 2
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
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- Feedback Control In General (AREA)
Abstract
The utility model discloses one kind to be based on PLC automatic nitrogen control systems, including PLC control system, the display output terminal and adjustment input terminal of the PLC control system are connected with touch screen, the PLC control system, the PLC control system is connected with the micro-pressure sensor on water pot, and the control terminal of the PLC control system is connected with into nitrogen regulating valve, denitrogen regulating valve.The utility model according to technique need freely set nitrogen pressure progress and real-time PID adjustings, it reduces the personnel to operate, control accuracy is high, nitrogen pressure is stablized, nitrogen use level is utmostly reduced, system control is simple, reduces production cost, wherein redundancy program also is able to reduce failure, ensures equipment normal operation.
Description
Technical field
The utility model belongs to a kind of automatic control system, and in particular to one kind is based on PLC automatic nitrogen control systems.
Background technology
In recent years, country is gradually increased nuclear power input, and uranium is continuously improved as the primary raw material demand of nuclear power.Desalination
Deoxygenation wetting system is the important equipment in uranium production process, very stringent to process water requirement, is less than 10 μ except conductivity is met
Outside the requirement of s/cm, oxygen content is also required to be less than 50ppm, the group technology of two steps ro+deoxidation is employed in technique, finally
Product water is stored in sealing water pot, and air and pressure balance are completely cut off when being passed through nitrogen in water pot to ensure Inlet and outlet water.It is logical at present
Ensure the pressure balance of nitrogen frequently with the mode of safety valve is installed at the top of water pot, this method nitrogen consumption is very
Greatly.Also by water pot producer devise a set of instrument and small control cabinet that relay forms realizes that the pressure of nitrogen controls, but
Also to be merely capable of realizing the simple control in the range of pressure return difference, can not real-time ensuring nitrogen pressure balance, also can not be maximum
The saving nitrogen use level of limit, so as to which production cost be caused to rise.
Invention content
The utility model for solve the problems, such as it is of the existing technology propose, it is a kind of based on PLC nitrogen the purpose is to provide
Automatic control system.
The technical solution of the utility model is：One kind is based on PLC automatic nitrogen control systems, including PLC control system, institute
The display output terminal and adjustment input terminal for stating PLC control system are connected with touch screen, the PLC control system, the PLC controls
System processed is connected with the micro-pressure sensor on water pot, the control terminal of the PLC control system with into nitrogen regulating valve, denitrogen regulating valve
It is connected.
Redundancy micro-pressure sensor of the PLC control system also with redundancy comparison is connected.
The PLC control system includes PID circuits.
The PLC control system is contained in PLC control cabinet.
It is described into nitrogen regulating valve, denitrogen regulating valve be electric control valve.
The micro-pressure sensor, redundancy micro-pressure sensor range are 0 ~ 100kPa.
The micro-pressure sensor, redundancy micro-pressure sensor, which are arranged at the top of water pot, carries out pressure measurement.
It is described to be connected into nitrogen regulating valve, denitrogen regulating valve and water pot top.
The touch screen is arranged at PLC control cabinet outer wall.
The utility model according to technique need to nitrogen pressure progress freely set and in real time PID adjusting, reduction personnel
Operation, control accuracy is high, and nitrogen pressure is stablized, and utmostly reduces nitrogen use level, and system control is simple, and reduction is produced into
This, wherein redundancy program also is able to reduce failure, ensures equipment normal operation.
Description of the drawings
Fig. 1 is the connection diagram of the utility model；
Wherein：
1 touch screen, 2 PLC control system
3 micro-pressure sensor, 4 redundancy micro-pressure sensor
5 into 6 denitrogen regulating valve of nitrogen regulating valve.
Specific embodiment
Hereinafter, the utility model is described in detail with reference to drawings and examples：
It is as shown in Figure 1, a kind of based on PLC automatic nitrogen control systems, including PLC control system 2, the PLC controls system
The display output terminal and adjustment input terminal of system 2 are connected with touch screen 1, the PLC control system 2, the PLC control system 2
Be connected with the micro-pressure sensor 3 on water pot, the control terminal of the PLC control system 2 with into nitrogen regulating valve 5,6 phase of denitrogen regulating valve
Even.
Redundancy micro-pressure sensor 4 of the PLC control system 2 also with redundancy comparison is connected.
The PLC control system 2 includes PID circuits.
The PLC control system 2 is contained in PLC control cabinet.
It is described into nitrogen regulating valve 5, denitrogen regulating valve 6 be electric control valve.
The micro-pressure sensor 3,4 range of redundancy micro-pressure sensor are 0 ~ 100kPa.
The micro-pressure sensor 3, redundancy micro-pressure sensor 4, which are arranged at the top of water pot, carries out pressure measurement.
It is described to be connected into nitrogen regulating valve 5, denitrogen regulating valve 6 and water pot top.
The touch screen 1 is arranged at PLC control cabinet outer wall.
The micro-pressure sensor 3, redundancy micro-pressure sensor 4 carry the pressure sensor of 4 ~ 20mA output signals, due to nitrogen
Atmospheric pressure is very low, therefore, it is necessary to selected range in 0 ~ 100kPa micro-pressure sensors.
The course of work of the utility model is as follows：
Utility model works process includes two parts：Into nitrogen and denitrogen.
When Water in Water Tank expires water supply start, water level is gradually reduced, and at this moment nitrogen pressure is begun to decline, at this time for into nitrogen mistake
Journey, micro-pressure sensor 3 monitor that current nitrogen pressure force value is less than the nitrogen pressure force value that operating personnel set in touch screen 1, PLC controls
System 2 processed starts to start, and tank top nitrogen pressure is passed to PLC control system 2, PLC control cabinet 2 by micro-pressure sensor 3 in real time
According to the measured value of micro-pressure sensor 3, the aperture into nitrogen regulating valve 5 is adjusted by PID circuits, nitrogen slowly fills into, and works as minute-pressure
After the measured value of sensor 3 reaches setting value, closed into nitrogen regulating valve 5.
When water tank reaches low liquid level, equipment starts moisturizing, and with the rising of water level, nitrogen pressure starts to increase, at this time
For denitrogen process, the current nitrogen pressure force value monitored of micro-pressure sensor 3 is higher than the nitrogen set in operating personnel in touch screen 1
Air pressure force value, PLC control system 2 start to start denitrogen program.PLC control system 2 is led to according to the measured value of micro-pressure sensor 3
The aperture that PID circuits adjust denitrogen regulating valve 6 is crossed, nitrogen is slowly discharged, when the measured value of micro-pressure sensor 3 reaches setting value
Afterwards, denitrogen regulating valve 6 is closed.When water tank reaches high liquid level, equipment stops moisturizing.
In the above-mentioned course of work, PLC control system 2 is real-time to the loaded value of micro-pressure sensor 3 and redundancy micro-pressure sensor 4
It is compared, starts alarm when deviation is excessive, and alarm entry and classification are shown on touch screen 1, prompt operating personnel's inspection
Failure is looked into, after operating personnel judge failure, operating system enters Redundant Control flow, continues to repeat into nitrogen and denitrogen flow.
The utility model according to technique need to nitrogen pressure progress freely set and in real time PID adjusting, reduction personnel
Operation, control accuracy is high, and nitrogen pressure is stablized, and utmostly reduces nitrogen use level, and system control is simple, and reduction is produced into
This, wherein redundancy program also is able to reduce failure, ensures equipment normal operation.
Claims (9)
1. one kind is based on PLC automatic nitrogen control systems, including PLC control system（2）, it is characterised in that：The PLC controls system
System（2）Display output terminal and adjustment input terminal and touch screen（1）It is connected, the PLC control system（2）, the PLC controls
System（2）With the micro-pressure sensor on water pot（3）It is connected, the PLC control system（2）Control terminal with into nitrogen regulating valve（5）、
Denitrogen regulating valve（6）It is connected.
It is 2. according to claim 1 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The PLC controls system
System（2）The redundancy micro-pressure sensor also compared with redundancy（4）It is connected.
It is 3. according to claim 1 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The PLC controls system
System（2）Include PID circuits.
It is 4. according to claim 1 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The PLC controls system
System（2）It is contained in PLC control cabinet.
It is 5. according to claim 1 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：It is described to be adjusted into nitrogen
Valve（5）, denitrogen regulating valve（6）It is electric control valve.
It is 6. according to claim 2 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The minute-pressure sensing
Device（3）, redundancy micro-pressure sensor（4）Range is 0 ~ 100kPa.
It is 7. according to claim 2 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The minute-pressure sensing
Device（3）, redundancy micro-pressure sensor（4）It is arranged at the top of water pot and carries out pressure measurement.
It is 8. according to claim 5 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：It is described to be adjusted into nitrogen
Valve（5）, denitrogen regulating valve（6）With being connected at the top of water pot.
It is 9. according to claim 4 a kind of based on PLC automatic nitrogen control systems, it is characterised in that：The touch screen（1）
It is arranged at PLC control cabinet outer wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345843.0U CN207473428U (en) | 2017-10-19 | 2017-10-19 | One kind is based on PLC automatic nitrogen control systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721345843.0U CN207473428U (en) | 2017-10-19 | 2017-10-19 | One kind is based on PLC automatic nitrogen control systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207473428U true CN207473428U (en) | 2018-06-08 |
Family
ID=62267121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721345843.0U Active CN207473428U (en) | 2017-10-19 | 2017-10-19 | One kind is based on PLC automatic nitrogen control systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207473428U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473753A (en) * | 2018-11-21 | 2019-03-15 | 北京无线电计量测试研究所 | A kind of periodic array structural radiation body novel microwave window and test method |
| CN111014894A (en) * | 2019-11-15 | 2020-04-17 | 华域汽车车身零件（上海）有限公司 | Water-gas detection control system |
-
2017
- 2017-10-19 CN CN201721345843.0U patent/CN207473428U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473753A (en) * | 2018-11-21 | 2019-03-15 | 北京无线电计量测试研究所 | A kind of periodic array structural radiation body novel microwave window and test method |
| CN109473753B (en) * | 2018-11-21 | 2021-07-30 | 北京无线电计量测试研究所 | Novel microwave window of periodic array structure radiator and test method |
| CN111014894A (en) * | 2019-11-15 | 2020-04-17 | 华域汽车车身零件（上海）有限公司 | Water-gas detection control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200309 Address after: 300180, No. 168 Jintang Road, Hedong District, Tianjin Patentee after: Inst. of Physics and Chemistry Engineering Address before: 300384 Tianjin hi tech District of Xiqing City Huayuan Industrial Zone Development six road No. 6 Haitai green industry base building J room 104 Patentee before: China core (Tianjin) New Technology Development Co., Ltd. |