CN208847650U - Portable gas detection device based on Differential UV spectroscopy principle - Google Patents
Portable gas detection device based on Differential UV spectroscopy principle Download PDFInfo
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- CN208847650U CN208847650U CN201821480440.1U CN201821480440U CN208847650U CN 208847650 U CN208847650 U CN 208847650U CN 201821480440 U CN201821480440 U CN 201821480440U CN 208847650 U CN208847650 U CN 208847650U
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- gas
- vacuum pump
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- solenoid valve
- reaction pond
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Abstract
The utility model relates to portable gas detection devices, comprising: detection layers have ultraviolet source, gas reaction pond and the ultraviolet spectrometer for passing sequentially through optical fiber connection；Control layer is in parallel position positioned at the detection layers, and has vacuum pump, solenoid valve and drive circuit board；And display and alternation of bed, positioned at the surface of apparatus casing, and have display, USB interface, air inlet and air outlet；Air inlet is connected with gas reaction pond by admission line, and gas reaction pond, vacuum pump and gas outlet pass sequentially through outlet pipe and connect, and the solenoid valve of control piper on-off is equipped on admission line and outlet pipe；Display, USB interface, ultraviolet spectrometer, vacuum pump and solenoid valve are connect with drive circuit board.Three layer arrangements of device point in detection device, reduce equipment volume, realize portability；By the operating status of control solenoid valve, vacuum pump, the automation control of disengaging gas is realized.
Description
Technical field
The utility model belongs to gas detection equipment field, the in particular to Portable gas based on Differential UV spectroscopy principle
Physical examination measurement equipment.
Background technique
With science and technology it is increasingly developed, various industrial gasses and life gas largely generate, these gases may
Environment is polluted, may result in explosion accident.People's lives level is also being continuously improved at the same time, and people are for matter of living
The requirement of amount is also being continuously improved, and some gases for influencing quality of life are also just increasingly repelled.Therefore, to various gases
Concentration is realized that detection just seems and is highly desirable.
Currently on the market for there are mainly three types of the modes of gas detection, approach sensor, ultraviolet infrared spectroscopy mode with
Gas-chromatography mode.Wherein cost is relatively low for sensor, but detection accuracy is poor, and intoxicating phenomenon easily occurs for sensor；Gas phase
Chromatography detection accuracy is high, but at high cost, and detection time is long, so Garlic oil composition is the head of current portable type measuring
Choosing.And infrared spectroscopy is vulnerable to temperature, the influence of water content, so ultraviolet spectroscopy having a high potential in the market.
Internal unit is all placed on same plane due to portability to be embodied by existing Portable ultraviolet spectrum detection device
On, to reduce volume, but jamproof ability is poor in this case, vibration is generated when mobile, to internal unit and route
Be affected, may result in improper instrument damage；Simultaneously because volume reduces, the heat for running generation is all gathered in
Together, it is difficult to dissipate, the excessively high damage of instrument temperature may be made.
Utility model content
The purpose of this utility model is to provide a kind of portable gas detection devices, comprising:
Detection layers, be located at the equipment inside, and have pass sequentially through optical fiber connection ultraviolet source, gas reaction pond and
Ultraviolet spectrometer；
Control layer is located inside the equipment, and has drive circuit board, vacuum pump, solenoid valve and light source power supply circuit
Plate；And
Display and alternation of bed positioned at the surface of the equipment, and have air inlet, gas outlet, USB interface and display；
Air inlet is connected with gas reaction pond by admission line, and gas reaction pond, vacuum pump and gas outlet pass sequentially through
Outlet pipe connects, and the solenoid valve of control piper on-off is equipped on admission line and outlet pipe；It is USB interface, display, true
Sky pump, solenoid valve and ultraviolet spectrometer are connect with drive circuit board.
The utility model realizes the automation control of disengaging gas by the operating status of control solenoid valve, vacuum pump, thus
Realize flowing and the static lower spectra collection of closing of gas；Each connection line and optical fiber interface of detection device are all fixed on detection
On apparatus casing, reducing influences because of movement or caused by colliding internal device position and working condition, improves its operation is stable
Property；Three layer arrangements of device point in detection device, utmostly reduce equipment volume, realize portability；Display shows battery
Electricity and voltage and current etc. can make staff be easier to check equipment working state；The equipment later period can pass through USB interface
It realizes expanding function, such as carries out exchanging for spectroscopic data with computer.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the portable gas detection device of an embodiment according to the present utility model.
Fig. 2 is the control layer schematic diagram of an embodiment according to the present utility model.
Fig. 3 is the detection layers schematic diagram of an embodiment according to the present utility model.
Fig. 4 is display and the alternation of bed schematic diagram of an embodiment according to the present utility model.
Fig. 5 is the gas passage schematic diagram of an embodiment according to the present utility model.
Fig. 6 is the light path schematic diagram of an embodiment according to the present utility model.
Fig. 7 is the circuit connection diagram of an embodiment according to the present utility model.
Specific embodiment
Utility model is described in further detail with reference to the accompanying drawings and detailed description.
A kind of portable gas detection device, equipment can be integrated in outer dimension be (L × W × H:550mm × 300mm ×
In shell 1 250mm), aluminium alloy design is can be used in shell 1, can install four rolling in bottom, and draw outside the installation of side
Bar.For the stabilization for guaranteeing each route and interface, connection line and interface are all fixed on shell 1.In order to reduce equipment body
Product realizes portability, and detection device uses hierarchical design, particularly may be divided into detection layers, control layer, display and alternation of bed etc., joins
See Fig. 1.
As shown in Figure 1, Figure 2, Fig. 6, detection layers are located inside shell 1, such as the bottom in shell 1, detect the purple of under test gas
External spectrum data, and there is ultraviolet source 3, gas reaction pond 4 and the ultraviolet spectrometer 5 for passing sequentially through optical fiber connection.Ultraviolet light
Source 3 can be ultraviolet deuterium lamp, have voltage regulator circuit plate.Ultraviolet source 3 issues specific ultraviolet light, is transmitted to by single mode optical fiber
In gas reaction pond 4, light is passed to after multiple reflections through single mode optical fiber complete in ultraviolet spectrometer 5 in gas reaction pond 4
At detection.
Such as Fig. 1, Fig. 3, display has display 202, USB interface 203, air inlet 204 and gas outlet 205 with alternation of bed
Deng.Display and each device of alternation of bed are located at the positions such as the surface, such as upper surface 2, side of shell 1.Such as Fig. 4, control layer
Inside shell 1, such as the medium position in shell 1, and can be parallel with the detection layers.Control layer has vacuum pump 6, electricity
Magnet valve 7, battery 8, drive circuit board 9, light source power supply circuit board 10 etc..
Such as Fig. 7, battery 8 takes each device offer electric energy of formula gas detection equipment for giving.Light source power supply circuit board 10
It will power after voltage transformation that battery 8 exports to ultraviolet source 3.Drive circuit board 9 may include single-chip microcontroller (such as
STM32), the driving circuit and warning circuit of each electrical part, for controlling the work for taking each device of formula gas detection equipment
Make, display 202, USB interface 203, ultraviolet spectrometer 5, vacuum pump 6 and solenoid valve 7 connect with the single-chip microcontroller of drive circuit board 9
It connects.When detecting that the exceeded alarm circuit of pernicious gas can issue alarm signal.Display 202 shows battery capacity and voltage electricity
Stream etc. can make staff be easier to check equipment working state.The equipment later period can be realized by USB interface 203 and be expanded
Function, such as exchanging for spectroscopic data is carried out with computer.
Such as Fig. 5, air inlet 204 is connected with gas reaction pond 4 by admission line, gas reaction pond 4, vacuum pump 6 and go out
Port 205 passes sequentially through outlet pipe connection, is equipped with control piper on-off on the admission line and the outlet pipe
Solenoid valve 7, vacuum pump 6 and solenoid valve 7 are controlled by drive circuit board 9, the automation control of disengaging gas are realized, to realize gas
Flowing and the static lower spectra collection of closing.
Such as Fig. 1, Fig. 3 in order to solve the problems, such as that portable gas detection device radiates, apparatus casing 1 the detection layers with
Position between the control layer is equipped with thermovent 11, is equipped with another thermovent 201 at top.
Claims (4)
1. a kind of portable gas detection device characterized by comprising
Detection layers are located at apparatus casing (1) inside, and have the ultraviolet source (3) for passing sequentially through optical fiber connection, gas reaction pond
(4) and ultraviolet spectrometer (5)；
Control layer is located at apparatus casing (1) inside with the detection layers and is in parallel position, and has vacuum pump (6), electromagnetism
Valve (7) and drive circuit board (9)；And
Display and alternation of bed are located at the surface of apparatus casing (1), and have display (202), USB interface (203), air inlet
(204) and gas outlet (205)；
Air inlet (204) is connected with gas reaction pond (4) by admission line, gas reaction pond (4), vacuum pump (6) and outlet
Mouth (205) passes sequentially through outlet pipe connection, and the solenoid valve of control piper on-off is equipped on admission line and outlet pipe
(7)；Display (202), USB interface (203), ultraviolet spectrometer (5), vacuum pump (6) and solenoid valve (7) are and drive circuit board
(9) it connects.
2. portable gas detection device according to claim 1, which is characterized in that detection layers are located at apparatus casing (1)
Interior bottom.
3. portable gas detection device according to claim 1, which is characterized in that apparatus casing (1) is in the detection
Position between layer and the control layer is equipped with thermovent (11).
4. portable gas detection device according to claim 1, which is characterized in that the top of apparatus casing (1) is equipped with
Another thermovent (201).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480440.1U CN208847650U (en) | 2018-09-10 | 2018-09-10 | Portable gas detection device based on Differential UV spectroscopy principle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821480440.1U CN208847650U (en) | 2018-09-10 | 2018-09-10 | Portable gas detection device based on Differential UV spectroscopy principle |
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| Publication Number | Publication Date |
|---|---|
| CN208847650U true CN208847650U (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821480440.1U Active CN208847650U (en) | 2018-09-10 | 2018-09-10 | Portable gas detection device based on Differential UV spectroscopy principle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098354A (en) * | 2020-09-21 | 2020-12-18 | 国网重庆市电力公司电力科学研究院 | Ultraviolet absorption spectroscopy-based SF6 decomposition component detection device and method |
-
2018
- 2018-09-10 CN CN201821480440.1U patent/CN208847650U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098354A (en) * | 2020-09-21 | 2020-12-18 | 国网重庆市电力公司电力科学研究院 | Ultraviolet absorption spectroscopy-based SF6 decomposition component detection device and method |
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