CN206146873U - Phosphine concentration on -line monitoring device - Google Patents
Phosphine concentration on -line monitoring device Download PDFInfo
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- CN206146873U CN206146873U CN201621141751.6U CN201621141751U CN206146873U CN 206146873 U CN206146873 U CN 206146873U CN 201621141751 U CN201621141751 U CN 201621141751U CN 206146873 U CN206146873 U CN 206146873U
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Abstract
The utility model relates to a phosphine concentration on line measurement. A low concentration phosphine concentration on -line monitoring device, the device includes the sampling conveying unit, sampling tank, sampling sensor, aspiration pump, sampling exhaust unit, unit, PLC controller unit sweep, human machine interface unit and remote monitering system. The utility model discloses respectively the sample phosphine concentration of branch road of online loop detection still to the hydrogen phosphate gas concentration detection that possibly reveals and report to the police, realizes the security that detects in the monitoring devices switch board. Adopted to sweep the unit, avoided leaving over gas in sampling tank to measurement accuracy's interference. Additionally, the utility model discloses possess touch -sensitive screen man -machine interface, record sampling numerical value is used for the analysis to report to the police, possesses operation convenient characteristics directly perceived to possess industrial ethernet communication interface, possess the characteristics that information collection is convenient. The utility model has the characteristics of simple structure easily operates and uses very safely.
Description
Technical field
The utility model is related to phosphine concentration on-line measurement.
Background technology
At present, during desinsection, measurement phosphine concentration is divided into high concentration and low concentration inspection generally according to concentration range
Survey.Low concentration generally in environment（0-5ppm phosphine gas adopt Portable monitor.Have the disadvantage needs manually according to monitoring
Place flow measurement, and generally require manual record data.It is unable to the continuous reservation record measurement result of electronics.By signal transmission
To supporting safety zone place nonshared control unit, concentration data can on a sensor scene show, it is also possible in controller
Upper display.Data transfer uses wired mode.It has the disadvantage because phosphine gas have corrosiveness to metallic copper, for a long time
Using causing holding wire to damage, and the supporting controller of manufacturer usually not communication interface in the market, or only
There are MODBUS agreements, or due to the nonstandard parasexuality of agreement, it is not easy to it is integrated into host computer system.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of above-mentioned background technology, so as to provide a kind of simple structure, it is easy to
Operate and use very safe phosphine gas concentration monitoring device.
In order to realize above-mentioned purpose, the utility model employs following technical scheme：
A kind of phosphine concentration on-Line Monitor Device, the device includes sampling supply unit, sample can, hydrogen phosphide sensing
Device, aspiration pump, sampling exhaust unit, purging unit, PLC unit, human and machine interface unit and long distance control system, institute
The sampling supply unit stated is provided with each position that multi-wad join branch road is respectively connecting to warehouse, and sampling supply unit is by connecting
Adapter road is connected to sample can, and described phosphatization hydrogen sensor is arranged on sample can, and phosphatization hydrogen sensor is electrically connected to PLC controls
Device unit, PLC unit is respectively by connection human and machine interface unit and long distance control system；By connecting on sample can
The described purging unit of adapter road connection, purging unit connection air, and described also by connecting line connection in sample can
Aspiration pump, aspiration pump is by connecting line connection sampling exhaust unit；Described PLC unit connects respectively control sampling
Supply unit, aspiration pump, sampling exhaust unit and purging cell operation.
Preferably, being provided with hydrogen phosphide detection tank on described sample can, one end of hydrogen phosphide detection tank passes through first
Connecting line is connected to sample can, and the first magnetic valve is arranged on the first connecting line, and described is arranged with phosphatization hydrogen sensor
In hydrogen phosphide detection tank, the other end of hydrogen phosphide detection tank is connected to sampling exhaust unit by the second connecting line, described
Balance micro circulation pump be arranged on the second connecting line, and balance micro circulation pump rear end is provided with the second magnetic valve.Using
Double tank detections, the big tank body of one side adopts big pump, quickly can be pumped through by the sample gas at scene, and another aspect again can little pump
Circulation is used for quickly detecting, and can so protect sensor, and sampling efficiency can be improved again.
In order to be able to make electrochemical sensor working stability and measurement accurate, electrochemical sensor must be just allowed to be operated in one
In the environment of constant temperature.In order to realize thermostatic control, consider from economy and design complexities, it is necessary to design a set of efficient perseverance
Temperature controller.Preferably, being provided with thermostatically-controlled equipment on described sample can, thermostatically-controlled equipment includes upper TEMP
Device, lower temperature sensor, the first single-chip microcomputer and semiconductor chilling plate；Described upper temperature sensor and lower temperature sensor branch
The upper and lower part of sample can is arranged on, upper temperature sensor and lower temperature sensor are conveniently connected to the first single-chip microcomputer；Described half
Conductor cooling piece is close to be arranged on the outside of sample can；First transmitter is set in PLC unit, and the first transmitter includes
Second singlechip, refrigeration or heat control unit and alarm unit, second singlechip is communicated by RS485 with the first single-chip microcomputer and is connect
Mouth is connected, and second singlechip connection is freezed or heat control unit, and refrigeration or heat control unit control connect semiconductor system
Cold work, described alarm unit connection second singlechip.Above-mentioned technical scheme is employed, is fully taken into account not in design
With the difference of the environment temperature in dimension area, RS485 communication interfaces are reserved in product design, heating temperature can have been adjusted by it
Bottom valve value and cryogenic temperature threshold values.The apparatus structure is simple, it is easy to operate, using very high efficiency.With small volume, weight
Gently, can easily control to freeze and heat by changing the sense of current, and temperature-responsive is good, can carry out local temperature control
System, the features such as control accuracy is high.
Preferably, being provided with fin on described semiconductor chilling plate, fin outside arranges fan；Described change
Device is sent to include fan control unit, fan control unit connection control fan work.Semiconductor chilling plate can generate heat when working, institute
Metal fin and fan are mounted with supporting.
Preferably, described sample can includes nylon outer shell and radiating aluminum hull, radiating aluminum hull is arranged on nylon outer shell
Outer ring, is provided with air inlet and gas outlet in nylon outer shell.
Preferably, described phosphatization hydrogen sensor is connected with constant voltage circuit, constant voltage circuit connection power supply circuits, hydrogen phosphide
The output end of sensor is connected with signal acquisition circuit, and signal acquisition circuit includes current-to-voltage converting circuit, adc circuit and the
Three single-chip microcomputers, current-to-voltage converting circuit, adc circuit and the 3rd single-chip microcomputer are sequentially connected；Second is arranged in PLC unit
Transmitter, the second transmitter includes the 4th single-chip microcomputer, alarm unit and D/A module, and alarm unit and D/A module are respectively connecting to the
Four single-chip microcomputers, the 4th single-chip microcomputer is connected with the 3rd single-chip microcomputer by RS485 communication interfaces.
Preferably, the 4th described single-chip microcomputer is additionally provided with program upgrade interface.
Preferably, described sampling pipe adopts polyfluortetraethylene pipe, sample can to adopt stainless cylinder of steel, sampling pump is using anti-
Rotten sampling pump.
Preferably, described sampling supply unit is provided with each position that 16 tunnels connection branch road is respectively connecting to warehouse
Put, air inlet electromagnetic valve is respectively arranged with 16 tunnels connection branch road, air inlet electromagnetic valve is all connected with PLC unit, the connection of 16 tunnels
The end of branch road is connected with respectively air inlet BULKHEAD UNION.
Preferably, described purging unit includes scavenging pipeline and purge solenoid valve, purge solenoid valve connection PLC controls
Device unit.
Fully take into account in design《People's Republic of China's Occupational sanitary standard》In " workplace harmful factors
Exposed is limited " part 1：No. 160 hydrogen phosphide workplace safe level of table 1 is in chemical noxious factor 4.1
0.3ppm, phosphatization hydrogen sensor is adopted（0-5ppm, it is contemplated that hydrogen phosphide with corrosion, the physicochemical property of toxicity, magnetic valve
Group adopts PP or PVDF materials, it is contemplated that the adsorptivity of hydrogen phosphide, and sampling pipe adopts polyfluortetraethylene pipe, and sample can is using stainless
Cylinder of steel, sampling pump is also adopted by the import anti-corrosive sample-taking pump of specialty.
Low concentration detection means of the present utility model is primarily used to detect the phosphine concentration of environment, by warehouse
Each position specified, arrange corresponding sampled point, sampling analysis is carried out to the phosphine concentration of sampled point, to reach environment
The purpose of concentration measurement and control.Relatively low in view of the phosphine concentration contained in environment, the general gas using spot sampling no longer enters
Row passback, but directly drain.
The online cycle detection of the utility model is respectively sampled the phosphine concentration of branch road, also to have in monitoring device switch board can
Can reveal phosphine gas concentration detect and report to the police, realize detection security.The utility model employs purging unit, keeps away
The interference of the gas that is retained in sample can to certainty of measurement is exempted from.In addition, the utility model possesses touch screen human-computer interface, note
Record sample magnitude is used to analyze reports to the police, and possesses the characteristics of operating intuitive and convenient, and possesses EPA communication interface, possesses letter
The characteristics of ceasing integrated convenience.The utility model has simple structure, it is easy to the characteristics of operating and use very safe.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the first sample can and hydrogen phosphide detect tank.
Fig. 3 is the structural representation of thermostatically-controlled equipment.
Fig. 4 is the electrical block diagram of phosphatization hydrogen sensor.
Specific embodiment
Specific embodiment of the present utility model is made a detailed explanation below in conjunction with the accompanying drawings.
A kind of phosphine concentration on-Line Monitor Device as shown in Figure 1, it is characterised in that：The device includes that sampling conveying is single
It is unit 1, sample can 2, phosphatization hydrogen sensor 3, aspiration pump 4, sampling exhaust unit 5, purging unit 6, PLC unit 7, man-machine
Boundary element 8 and long distance control system 9, described sampling supply unit 1 is provided with 16 tunnels connection branch road and is respectively connecting to storehouse
Each position in storehouse, on 16 tunnels connection branch road air inlet electromagnetic valve is respectively arranged with, and air inlet electromagnetic valve is all connected with PLC unit
The end of 7,16 tunnels connection branch road is connected with respectively air inlet BULKHEAD UNION.Sampling supply unit 1 is connected by connecting line
To sample can 2, described phosphatization hydrogen sensor 3 is set, phosphatization hydrogen sensor 3 is electrically connected to PLC unit on sample can 2
7, PLC unit 7 is respectively by connection human and machine interface unit 8 and long distance control system 9；By connecting on sample can 2
The described purging unit 6 of adapter road connection, the purging connection air of unit 6, purging unit 6 includes scavenging pipeline and purging electromagnetism
Valve, purge solenoid valve connection PLC unit 7.Sample can 2 is also by the aspiration pump 4 that connecting line connection is described, aspiration pump
4 by connecting line connection sampling exhaust unit 5；Described PLC unit 7 connect respectively control sampling supply unit 1,
Aspiration pump 4, sampling exhaust unit 5 and purging unit 6 work.Above-mentioned sampling pipe adopts polyfluortetraethylene pipe, sample can 2 to adopt
Stainless cylinder of steel, sampling pump adopts anti-corrosive sample-taking pump.
As shown in Fig. 2 being provided with hydrogen phosphide detection tank on sample can 2, one end of hydrogen phosphide detection tank is by the first connection
Pipeline is connected to the first sample can, and the first magnetic valve is arranged on the first connecting line, and described phosphatization hydrogen sensor 3 is arranged on
In hydrogen phosphide detection tank, the other end of hydrogen phosphide detection tank is connected to sampling exhaust unit 5 by the second connecting line, described
Balance micro circulation pump is arranged on the second connecting line, and balance micro circulation pump rear end is provided with the second magnetic valve.
As shown in figure 3, be provided with thermostatically-controlled equipment on sample can 2, thermostatically-controlled equipment include upper temperature sensor, under
Temperature sensor, the first single-chip microcomputer and semiconductor chilling plate；Described upper temperature sensor and lower temperature sensor branch is arranged
In the upper and lower part of sample can 2, upper temperature sensor and lower temperature sensor are conveniently connected to the first single-chip microcomputer；Described partly leads
Body cooling piece is close to be arranged on the outside of sample can 2；First transmitter is set in PLC unit 7, and the first transmitter includes
Second singlechip, refrigeration or heat control unit and alarm unit, second singlechip is communicated by RS485 with the first single-chip microcomputer and is connect
Mouth is connected, and second singlechip connection is freezed or heat control unit, and refrigeration or heat control unit control connect semiconductor system
Cold work, described alarm unit connection second singlechip.Fin is provided with semiconductor chilling plate, is set outside fin
Put fan；Described transmitter includes fan control unit, fan control unit connection control fan work.
As shown in figure 4, sample can 2 includes nylon outer shell and radiating aluminum hull, the aluminum hull that radiates is arranged on the outer ring of nylon outer shell,
Air inlet and gas outlet are provided with nylon outer shell.Phosphatization hydrogen sensor 3 is connected with constant voltage circuit, constant voltage circuit connection power supply electricity
Road, the output end of phosphatization hydrogen sensor 3 is connected with signal acquisition circuit, signal acquisition circuit include current-to-voltage converting circuit,
Adc circuit and the 3rd single-chip microcomputer, current-to-voltage converting circuit, adc circuit and the 3rd single-chip microcomputer are sequentially connected；PLC list
Second transmitter is set in unit 7, and the second transmitter includes the 4th single-chip microcomputer, alarm unit and D/A module, alarm unit and DA moulds
Block is respectively connecting to the 4th single-chip microcomputer, and the 4th single-chip microcomputer is connected with the 3rd single-chip microcomputer by RS485 communication interfaces.4th monolithic
Machine is additionally provided with program upgrade interface.
A kind of low-concentration hydrogen phosphide concentration on-line monitoring method, the method adopts above-mentioned device, the method to include following
The step of：
Before 1 work, all of equipment is in closing or halted state；
2 sampled first before purging；Purge solenoid valve and exhaust solenoid valve are opened, asepwirator pump, timing operation 1 is opened
Minute is purged to sample can 2 using air；
When 3 sampling, the connection branch road air inlet electromagnetic valve and exhaust solenoid valve are opened, and start asepwirator pump, will be sampled
Gas is extracted into sample can 2, and timing operation 1 minute carries out concentration monitor by the phosphatization hydrogen sensor 3 installed on sample can 2；
After the completion of 4 detections, the electromagnetic gas valve that enters of the connection branch road is closed, sampling gas is discharged by asepwirator pump and is arranged to air
Outlet pipe；Then sampling monitoring all the way is carried out down；
Above-mentioned phosphatization hydrogen sensor 3 sends signal outside to PLC unit 7, is recorded, and user can pass through ether
Net, is sent to long distance control system 9；The switch board upper band touch-screen of the device shows；User can be convenient on the touchscreen
Operated；Whole control process PLC is according to the logic control for setting, if report to the police to operating personnel to go beyond the scope.
Claims (10)
1. a kind of phosphine concentration on-Line Monitor Device, it is characterised in that：The device includes sampling supply unit（1）, sample can
（2）, phosphatization hydrogen sensor（3）, aspiration pump（4）, sampling exhaust unit（5）, purging unit（6）, PLC unit（7）, people
Machine boundary element（8）And long distance control system（9）, described sampling supply unit（1）It is provided with multi-wad join branch road difference
Each position in warehouse is connected to, supply unit of sampling（1）Sample can is connected to by connecting line（2）, sample can（2）On set
Put described phosphatization hydrogen sensor（3）, phosphatization hydrogen sensor（3）It is electrically connected to PLC unit（7）, PLC unit
（7）Respectively by connecting human and machine interface unit（8）And long distance control system（9）；In sample can（2）On by connecting line connect
Connect described purging unit（6）, purge unit（6）Connection air, and in sample can（2）Described also by connecting line connection
Aspiration pump（4）, aspiration pump（4）By connecting line connection sampling exhaust unit（5）；Described PLC unit（7）Respectively
Connection control sampling supply unit（1）, aspiration pump（4）, sampling exhaust unit（5）With purging unit（6）Work.
2. a kind of phosphine concentration on-Line Monitor Device according to claim 1, it is characterised in that：Sample can（2）On set
Hydrogen phosphide detection tank is equipped with, one end of hydrogen phosphide detection tank is connected to the first sample can, connects first by the first connecting line
Adapter arranges the first magnetic valve, described phosphatization hydrogen sensor on road（3）It is arranged in hydrogen phosphide detection tank, hydrogen phosphide detection tank
The other end sampling exhaust unit is connected to by the second connecting line（5）, described balance micro circulation pump is arranged on the second company
On adapter road, and balance micro circulation pump rear end is provided with the second magnetic valve.
3. a kind of phosphine concentration on-Line Monitor Device according to claim 1, it is characterised in that：Sample can（2）On set
Thermostatically-controlled equipment is equipped with, thermostatically-controlled equipment includes upper temperature sensor, lower temperature sensor, the first single-chip microcomputer and semiconductor
Cooling piece；Described upper temperature sensor and lower temperature sensor branch is arranged on sample can（2）Upper and lower part, upper temperature passes
Sensor and lower temperature sensor are conveniently connected to the first single-chip microcomputer；Described semiconductor chilling plate is close to be arranged on sample can（2）
Outside；PLC unit（7）The first transmitter of interior setting, the first transmitter includes second singlechip, refrigeration or adds thermal control
Unit processed and alarm unit, second singlechip is connected with the first single-chip microcomputer by RS485 communication interfaces, second singlechip connection
Refrigeration or heat control unit, refrigeration or heat control unit control connection semiconductor chilling plate work, described alarm unit
Connection second singlechip.
4. a kind of phosphine concentration on-Line Monitor Device according to claim 3, it is characterised in that：On semiconductor chilling plate
Fin is provided with, fin outside arranges fan；Described transmitter includes fan control unit, fan control unit connection
Control fan work.
5. a kind of phosphine concentration on-Line Monitor Device according to claim 1 or 2 or 3 or 4, it is characterised in that：Sampling
Tank（2）Including nylon outer shell and radiating aluminum hull, the aluminum hull that radiates is arranged on the outer ring of nylon outer shell, air inlet is provided with nylon outer shell
Mouth and gas outlet.
6. a kind of phosphine concentration on-Line Monitor Device according to claim 1, it is characterised in that：Phosphatization hydrogen sensor
（3）It is connected with constant voltage circuit, constant voltage circuit connection power supply circuits, phosphatization hydrogen sensor（3）Output end be connected with signals collecting
Circuit, signal acquisition circuit include current-to-voltage converting circuit, adc circuit and the 3rd single-chip microcomputer, current-to-voltage converting circuit,
Adc circuit and the 3rd single-chip microcomputer are sequentially connected；PLC unit（7）The second transmitter of interior setting, the second transmitter includes the
Four single-chip microcomputers, alarm unit and D/A module, alarm unit and D/A module are respectively connecting to the 4th single-chip microcomputer, the 4th single-chip microcomputer and
Three single-chip microcomputers are connected by RS485 communication interfaces.
7. a kind of phosphine concentration on-Line Monitor Device according to claim 6, it is characterised in that：4th single-chip microcomputer also sets
It is equipped with program upgrade interface.
8. a kind of phosphine concentration on-Line Monitor Device according to claim 1, it is characterised in that：Sampling pipe adopts poly- four
Fluoride tubes, sample can（2）Using stainless cylinder of steel, sampling pump adopts anti-corrosive sample-taking pump.
9. a kind of phosphine concentration on-Line Monitor Device according to claim 1, it is characterised in that：Described sampling conveying
Unit（1）Be provided with 16 tunnels connection branch road and be respectively connecting to each position in warehouse, be respectively arranged with 16 tunnels connection branch road into
Pneumoelectric magnet valve, air inlet electromagnetic valve is all connected with PLC unit（7）, 16 tunnels connection branch road end be connected with respectively into
Gas BULKHEAD UNION.
10. a kind of phosphine concentration on-Line Monitor Device according to claim 9, it is characterised in that：Purging unit（6）Bag
Include scavenging pipeline and purge solenoid valve, purge solenoid valve connection PLC unit（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141751.6U CN206146873U (en) | 2016-10-20 | 2016-10-20 | Phosphine concentration on -line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621141751.6U CN206146873U (en) | 2016-10-20 | 2016-10-20 | Phosphine concentration on -line monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206146873U true CN206146873U (en) | 2017-05-03 |
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ID=58621969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621141751.6U Active CN206146873U (en) | 2016-10-20 | 2016-10-20 | Phosphine concentration on -line monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206146873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270147A (en) * | 2018-09-29 | 2019-01-25 | 荆州市爱尔瑞科技有限公司 | A kind of electrochemical phosphating hydrogen body sensor |
-
2016
- 2016-10-20 CN CN201621141751.6U patent/CN206146873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270147A (en) * | 2018-09-29 | 2019-01-25 | 荆州市爱尔瑞科技有限公司 | A kind of electrochemical phosphating hydrogen body sensor |
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