CN212622447U - Calibrating device of environmental protection type ozone detecting instrument - Google Patents
Calibrating device of environmental protection type ozone detecting instrument Download PDFInfo
- Publication number
- CN212622447U CN212622447U CN201922140376.3U CN201922140376U CN212622447U CN 212622447 U CN212622447 U CN 212622447U CN 201922140376 U CN201922140376 U CN 201922140376U CN 212622447 U CN212622447 U CN 212622447U
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- pipeline
- valve
- external
- device cavity
- inlet port
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Abstract
The utility model provides a calibrating device of environmental protection type ozone detecting instrument, including the device cavity, the external port of giving vent to anger, external inlet port, the aspiration pump, first valve and second valve, the both ends of device cavity are provided with external port and the external inlet port of giving vent to anger respectively, the external port connection ozone detecting instrument of giving vent to anger, the external appearance gas interface of giving vent to anger of external inlet port, the device can realize the calibration through the multichannel, obtain accurate calibration result, and compact structure is simple, portable installs.
Description
Technical Field
The utility model relates to a detect the calibration field, concretely relates to calibration device of environmental protection type ozone detecting instrument.
Background
With the deterioration of environmental conditions and the increase of awareness of people about the environment, higher requirements are put on environmental supervision. As an important means for environmental supervision, environmental monitoring instruments are increasingly gaining attention from governments and enterprises. China has promulgated environmental air quality standards and air pollutant comprehensive emission standards for a long time, and more than 6000 environmental air quality monitoring sites are established. However, the environmental air quality monitoring in China is basically in the stages of field sampling and laboratory analysis, and sampling instruments are mainly manual and semi-automatic. Ozone detection instruments are widely used as important environment monitoring instruments, but the calibration precision of the ozone detection instruments is not high at present, and most of the ozone detection instruments are simple in calibration method and cannot be accurately calibrated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide an environmental protection type ozone detecting instrument's calibrating device, can realize the calibration through the multichannel, obtain accurate calibration result to calibrating device compact structure is simple, portable installs.
The utility model provides a calibration device of an environment-friendly ozone detection instrument, which comprises a device cavity, an external air outlet port, an external air inlet port, an air pump, a first valve and a second valve, wherein the two ends of the device cavity are respectively provided with the external air outlet port and the external air inlet port; a first valve is arranged on a pipeline of the device cavity connected with the external air outlet port, and a second valve is arranged on a pipeline connected with the external air inlet port; the lower part of the device cavity is provided with an air pump; the surface of the device cavity is provided with a display screen and an indicator light, the interior of the device cavity is also provided with a central processing unit and a sensing unit, and the display screen, the indicator light and the sensing unit are respectively connected with the central processing unit; the device cavity is provided with a first pipeline and a second pipeline connected with an external air inlet port, wherein one end of the second pipeline connected with the first pipeline is provided with a connecting part with gradually increased diameter size and a rear end part with the diameter larger than that of the first pipeline, and the connecting part is communicated and connected with the rear end part; the device cavity is internally provided with a middle pipeline in a pipeline connected with the external air inlet port, and the diameter of the middle pipeline is smaller than that of the first pipeline and the second pipeline.
The sensing unit is a high-precision gas detection unit and a flow detection unit.
Wherein the end of the intermediate pipeline is aligned with the sensing unit.
Wherein, the first valve and the second valve are electromagnetic valves.
The utility model discloses an environmental protection type ozone detecting instrument's calibrating device can realize:
1) the structure is compact and simple, and the carrying and the installation are convenient;
2) the arrangement of the middle passage enables the measurement to be faster and more accurate.
Drawings
FIG. 1 is a schematic structural diagram of a calibration device of an environmental protection ozone detection instrument.
Description of reference numerals: 1. a device cavity; 2 is externally connected with an air outlet port; 3 is externally connected with an air inlet port; 4, an air pump; 5 a first valve; 6 a second valve; 7 sample gas outlet interface.
Detailed Description
The following detailed description of the embodiments of the present invention is provided for the purpose of illustration, and it is necessary to point out that the following embodiments are only for the purpose of further description of the present invention, and should not be construed as limiting the scope of the present invention, and the modifications and adjustments made by those skilled in the art according to the above description of the present invention are not essential to the present invention, and still belong to the scope of the present invention.
The utility model provides a calibrating device of environmental protection type ozone detecting instrument, its structure is shown as attached figure 1, and figure 1 is environmental protection type ozone detecting instrument's calibrating device schematic structure.
The utility model also provides a calibrating device of environmental protection type ozone detecting instrument, as shown in figure 1, calibrating device of environmental protection type ozone detecting instrument includes the device cavity, external port of giving vent to anger, external inlet port, aspiration pump, first valve, second valve. The two ends of the device cavity are respectively provided with an external air outlet port and an external air inlet port, wherein the external air outlet port can be connected with a corresponding ozone detection instrument, and the external air inlet port can be externally connected with a sample air outlet interface.
The device cavity is provided with a first valve on a pipeline connected with an external air outlet port, a second valve on a pipeline connected with an external air inlet port, and the first valve and the second valve can control the sample gas volume and the air outlet volume entering the calibration device, so that the corresponding pipeline can be closed and opened properly.
The lower part of the device cavity is provided with the air pump, and when the gas in the device cavity needs to be cleaned, the residual gas in the cavity can be pumped out by the air pump after the first valve and the second valve are closed, so that the cavity does not contain other gas, and the concentration precision of the sample gas can be ensured when the sample gas is introduced next time. In addition, in the process of calibration, when the gas of different samples is switched to be introduced, the air pump is directly opened after the first valve is closed, the air pump is closed after the sample is extracted, and then the first valve is opened, so that the sample gas which is discharged from the external air outlet port after switching is expected concentration and cannot be mixed with the previous sample.
The surface of the device cavity is provided with a display screen and an indicator light, the inside of the device cavity is also provided with a central processing unit and a sensing unit (such as a high-precision gas detection unit and a high-precision flow unit), the display screen, the indicator light and the sensing unit are respectively connected with the central processing unit, data measured by the sensing unit can be transmitted to the central processing unit and displayed on the display screen in an implementation manner, and the indicator light can also correspond to display working states.
The pipeline that the device cavity is connected with external inlet port has first pipeline and second pipeline, and wherein the one end that second pipeline and first tube coupling have the diameter rear end portion that the diameter size of crescent diameter is greater than first pipeline with the diameter, connecting portion and rear end portion turn-on connection. In addition, be equipped with middle pipeline in the pipeline that device cavity and external inlet port are connected, the diameter of middle pipeline is less than the diameter of first pipeline and second pipeline, and the sensing unit is aimed at to the end of middle pipeline, the sample gas that lets in like this can be along middle pipeline, the device cavity is got into respectively to middle pipeline and the passageway between the pipeline that device cavity and external inlet port are connected, the sample gas in the middle pipeline is direct to be measured by the sensing unit, sensing unit measuring's structure is more accurate like this, can not influence the measuring result because of the mixture between probably the letting in of twice different sample gas, can also guarantee simultaneously that the sample gas is quick to let in to ozone detecting instrument from external outlet port, thereby realize quick calibration.
When in work: the sample gas outlet interface is connected with the external inlet port, and after the ozone detection instrument is connected with the external outlet port, the gas state of the device cavity can be adjusted through the first valve, the second valve and the control of the air pump, after the adjusted calibration condition is met, the sample gas is introduced into the device cavity through the sample gas outlet interface, one part of the sample gas is measured through the intermediate pipeline and the sensing unit, the measurement result is displayed in real time, the other part of the sample gas is directly introduced into the ozone detection instrument from the external outlet port, the ozone detection instrument can be calibrated according to different standard sample gas parameters, and the method is rapid and accurate.
Although exemplary embodiments of the present invention have been described for illustrative purposes, those skilled in the art will appreciate that various modifications, additions, substitutions and the like can be made in form and detail without departing from the scope and spirit of the invention as disclosed in the accompanying claims, all of which are intended to fall within the scope of the claims, and that the various steps in the various departments and methods of the claimed product may be combined in any combination. Therefore, the description of the embodiments disclosed in the present invention is not intended to limit the scope of the present invention, but is used to describe the present invention. Accordingly, the scope of the present invention is not limited by the above embodiments, but is defined by the claims or their equivalents.
Claims (4)
1. The utility model provides a calibrating device of environmental protection type ozone detecting instrument, includes the device cavity, the external port of giving vent to anger, external inlet port, the aspiration pump, first valve and second valve, its characterized in that: an external air outlet port and an external air inlet port are respectively arranged at two ends of the device cavity, the external air outlet port is connected with an ozone detection instrument, and the external air inlet port is connected with an external sample air outlet interface; a first valve is arranged on a pipeline of the device cavity connected with the external air outlet port, and a second valve is arranged on a pipeline connected with the external air inlet port; the lower part of the device cavity is provided with an air pump; the surface of the device cavity is provided with a display screen and an indicator light, the interior of the device cavity is also provided with a central processing unit and a sensing unit, and the display screen, the indicator light and the sensing unit are respectively connected with the central processing unit; the device cavity is provided with a first pipeline and a second pipeline connected with an external air inlet port, wherein one end of the second pipeline connected with the first pipeline is provided with a connecting part with gradually increased diameter size and a rear end part with the diameter larger than that of the first pipeline, and the connecting part is communicated and connected with the rear end part; the device cavity is internally provided with a middle pipeline in a pipeline connected with the external air inlet port, and the diameter of the middle pipeline is smaller than that of the first pipeline and the second pipeline.
2. The apparatus of claim 1, wherein: the sensing unit is a high-precision gas detection unit and a flow detection unit.
3. The apparatus of claim 1, wherein: the end of the intermediate pipeline is aligned with the sensing unit.
4. The apparatus of claim 1, wherein: the first valve and the second valve are electromagnetic valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140376.3U CN212622447U (en) | 2019-12-04 | 2019-12-04 | Calibrating device of environmental protection type ozone detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922140376.3U CN212622447U (en) | 2019-12-04 | 2019-12-04 | Calibrating device of environmental protection type ozone detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212622447U true CN212622447U (en) | 2021-02-26 |
Family
ID=74727283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922140376.3U Expired - Fee Related CN212622447U (en) | 2019-12-04 | 2019-12-04 | Calibrating device of environmental protection type ozone detecting instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212622447U (en) |
-
2019
- 2019-12-04 CN CN201922140376.3U patent/CN212622447U/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 |
Granted publication date: 20210226 Termination date: 20211204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |