CN207937037U - A kind of sampler calibrating installation based on mass flow method - Google Patents
A kind of sampler calibrating installation based on mass flow method Download PDFInfo
- Publication number
- CN207937037U CN207937037U CN201820205428.3U CN201820205428U CN207937037U CN 207937037 U CN207937037 U CN 207937037U CN 201820205428 U CN201820205428 U CN 201820205428U CN 207937037 U CN207937037 U CN 207937037U
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- CN
- China
- Prior art keywords
- control unit
- main control
- sampler
- flowexit
- mass flow
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of sampler calibrating installation based on mass flow method, includes the traffic ingress and flowexit of setting on the device housing, and the main control unit of setting inside housings；The traffic ingress leads to ambient atmosphere, and the flowexit is connected to the sample inlet of sampler to be examined and determine；It is provided with mass flowmenter, pressure sensor and temperature sensor in the flow conduit of connection traffic ingress and flowexit；Mass flowmenter is connected to main control unit by flow signal acquisition circuit, and pressure sensor is connected to main control unit by pressure acquisition unit, and temperature sensor is connected to main control unit by temperature collecting cell；It further include the radio communication circuit for being connected to main control unit and being used for transmission gathered data.The utility model is small, light-weight, easy to carry to outfield；Execution unit and real control unit separate mode can be achieved using wireless communication, are convenient for remote operation；Easy to operate, calibrating efficiency is high, and verification result is accurate.
Description
Technical field
The utility model is related to calibrating gas preparation technique field, specially a kind of sampler inspection based on mass flow method
Determine device.
Background technology
Existing to carry out calibrating mode to air/dust/smoke dust sampling instrument, according to vertification regulation, almost each project uses one
Kind calibration equipment, has soap film flowmeter, thermometer, stopwatch, pressure vacuum gauge, insulation resistance meter, flow standard device and sets respectively
Standby, accurate differential manometer, U-tube manometer, force (forcing) pump etc..So more calibrating installations are not suitable for carrying out outfield calibrating, and outfield needs
Alternating current also difficult satisfaction is provided.Meanwhile the data measured using soap film flowmeter also need just obtain calibrating knot by manually calculating
Fruit, calibrating efficiency and calibrating accuracy are to be improved.
Utility model content
In view of the above-mentioned problems, the purpose of this utility model is to provide one kind to be easily carried, calibrating efficiency is high and examines and determine
The more accurately sampler calibrating installation based on mass flow method.Technical solution is as follows：
A kind of sampler calibrating installation based on mass flow method includes the traffic ingress and stream of setting on the device housing
Measure mouth, and the main control unit of setting inside housings；The traffic ingress leads to ambient atmosphere, and the flowexit is connected to
The sample inlet of sampler to be examined and determine；Mass flowmenter, pressure are provided in the flow conduit of connection traffic ingress and flowexit
Force snesor and temperature sensor；Mass flowmenter is connected to main control unit, pressure sensor by flow signal acquisition circuit
It is connected to main control unit by pressure acquisition unit, temperature sensor is connected to main control unit by temperature collecting cell；Also wrap
It includes and is connected to the radio communication circuit that main control unit is used for transmission gathered data.
Further, the traffic ingress and flowexit have two couple suitable for small-large flow, on respective traffic channel
It is the mass flowmenter for corresponding to range to be arranged.
Further, the main control unit processor is STM32F107.
Further, the range of the mass flowmenter is 30 ~ 50L/min.
Further, further include the power supply unit for being connected to main control unit.
The utility model has the beneficial effects that：The utility model is by mass flowmenter, pressure sensor, temperature sensor etc.
It is integrated in one, it is small, it is light-weight, it is easy to carry to outfield；Execution unit can be achieved using wireless communication and reality control is single
First separate mode is convenient for remote operation；Easy to operate, calibrating efficiency is high, and verification result is accurate.
Description of the drawings
Fig. 1 is the structural schematic diagram of sampler calibrating installation of the utility model based on mass flow method.
Specific implementation mode
The utility model is described in further details in the following with reference to the drawings and specific embodiments.As shown in Figure 1, a kind of base
In the sampler calibrating installation of mass flow method, include the traffic ingress and flowexit of setting on the device housing, and setting
Main control unit inside housings；The traffic ingress leads to ambient atmosphere, and the flowexit is connected to sampler to be examined and determine
Sample inlet；It is provided with mass flowmenter, pressure sensor and temperature in the flow conduit of connection traffic ingress and flowexit
Spend sensor；Mass flowmenter is connected to main control unit by flow signal acquisition circuit, and pressure sensor passes through pressure acquisition
Unit is connected to main control unit, and temperature sensor is connected to main control unit by temperature collecting cell；Further include being connected to master control
Unit is used for transmission the radio communication circuit of gathered data.
Device meets air sampler vertification regulation JJG 956-2013, dust sampler vertification regulation JJG 520-
2005, smoke dust sampling instrument vertification regulation JJG 680-2007.
The traffic ingress and flowexit of the present embodiment have two couple suitable for small-large flow, are arranged on respective traffic channel
Be the mass flowmenter of corresponding range, realize small flow, big flow different demands, flow range is up to 30 ~ 50L/min.
The present embodiment is connect using display control software with main control unit, and main control unit and other unit connection types are shown
Show that control software is responsible for sending order and reception device state to device.Main control unit sends according to display control software and orders,
Distribution command, and upload device current operating conditions.Each unit processor is STM32F107.Flow collection circuit, pressure acquisition
Circuit uses high-precision AD converter.
Further include the power supply unit for being connected to main control unit, power supply unit uses high capacity cell, can work long hours, energy
Enough it is suitable for over-the-counter application environment.
The present embodiment uses temperature sensor, acquires many places temperature, the automatic collection of temperature is realized, it is not necessary that temperature is provided separately
Degree meter；It is also integrated with stop watch function, it is not necessary that stopwatch is provided separately；Using battery powered mode, it is not necessarily to external power supply；A variety of calibratings
Equipment rolls into one, small, light-weight, is convenient for carrying outfield, and long lasting for work, meet multiple vertification regulations.
When carrying out sampler calibrating, flowexit is connect with the sample inlet of sampler to be examined and determine first, is then shut off stream
Entrance is measured, controlling vacuum pump by control unit vacuumizes sampler to be detected.After examining and determine sampler stable reading, in intelligence
Energy terminal sends control command to main control unit by radio communication, and control flow signal acquisition circuit is adopted by mass flowmenter
Collect data on flows, control pressure collecting unit acquires pressure data by pressure sensor, and control temperature collecting cell passes through temperature
Spend sensor collecting temperature data.To finally collect is that data and the reading of sampler to be examined and determine compare, and generates calibrating
As a result.Traffic ingress is finally opened, calibrating installation is removed.It is easy to operate accurate.
The mass flowmenter that the present embodiment uses can directly obtain experimental data, avoid in traditional verification process, need to lead to
The process that experimental data is manually calculated is crossed, calibrating efficiency is substantially increased.
Claims (5)
1. a kind of sampler calibrating installation based on mass flow method, which is characterized in that including stream on the device housing is arranged
Measure entrance and flowexit, and the main control unit of setting inside housings；The traffic ingress leads to ambient atmosphere, the flow
Outlet is connected to the sample inlet of sampler to be examined and determine；It is provided with quality in the flow conduit of connection traffic ingress and flowexit
Flowmeter, pressure sensor and temperature sensor；Mass flowmenter is connected to main control unit by flow signal acquisition circuit, pressure
Force snesor is connected to main control unit by pressure acquisition unit, and temperature sensor is connected to master control list by temperature collecting cell
Member；It further include the radio communication circuit for being connected to main control unit and being used for transmission gathered data.
2. the sampler calibrating installation according to claim 1 based on mass flow method, which is characterized in that the flow enters
Mouth and flowexit have two couple suitable for small-large flow, and it is the mass flow for corresponding to range to be arranged on respective traffic channel
Meter.
3. the sampler calibrating installation according to claim 1 based on mass flow method, which is characterized in that the master control
Cell processor is STM32F107.
4. the sampler calibrating installation according to claim 1 based on mass flow method, which is characterized in that the quality stream
The range of gauge is 30 ~ 50L/min.
5. the sampler calibrating installation according to claim 1 based on mass flow method, which is characterized in that further include connection
To the power supply unit of main control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205428.3U CN207937037U (en) | 2018-02-06 | 2018-02-06 | A kind of sampler calibrating installation based on mass flow method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820205428.3U CN207937037U (en) | 2018-02-06 | 2018-02-06 | A kind of sampler calibrating installation based on mass flow method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207937037U true CN207937037U (en) | 2018-10-02 |
Family
ID=63651777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820205428.3U Expired - Fee Related CN207937037U (en) | 2018-02-06 | 2018-02-06 | A kind of sampler calibrating installation based on mass flow method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207937037U (en) |
-
2018
- 2018-02-06 CN CN201820205428.3U patent/CN207937037U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181002 Termination date: 20200206 |