CN203101264U - Multicomponent concentration analysis device and measuring chamber thereof - Google Patents
Multicomponent concentration analysis device and measuring chamber thereof Download PDFInfo
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- CN203101264U CN203101264U CN 201320083485 CN201320083485U CN203101264U CN 203101264 U CN203101264 U CN 203101264U CN 201320083485 CN201320083485 CN 201320083485 CN 201320083485 U CN201320083485 U CN 201320083485U CN 203101264 U CN203101264 U CN 203101264U
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Abstract
The utility model discloses a multicomponent concentration analysis device. The multicomponent concentration analysis device is provided with a measuring chamber at least a part of which can be penetrated through by measurement beams, wherein the measuring chamber comprises a measuring cavity, reflector mirrors, a light incidence end and a light emitting end, a measured component flows by the measuring cavity, the reflector mirrors are installed in the measuring cavity or an outer side or two opposite sides of the measuring cavity, at least one surface of each reflector mirror is used as a plane-convex reflector mirror, the measurement beams enter the measuring chamber through the light incidence end and received by the light emitting end after being reflected by the plane-convex reflector mirrors for at least one time. The utility model also discloses the measuring chamber of the multicomponent concentration analysis device.
Description
Technical field
The utility model relates to a kind of multicomponent concentration analysis device, more precisely, relates to a kind of device and measuring chamber thereof that utilizes the absorption spectrum technology that measured component concentration is analyzed.
Background technology
At present, the device that utilizes the absorption spectrum technology to carry out the measured component concentration analysis is widely used in industrial process analysis (such as to the flue gas monitoring in the tested gas pipeline, atmosphere pollution constituent analysis, water quality on-line analysis etc.).In this kind technology, use the light beam of selected frequency to pass tested composition sample, the special component absorption that light beam that wherein should selected frequency can be analyzed by this kind device is according to the absorbing state of this light beam and calculate the concentration of tested composition in conjunction with special algorithm.In order to improve precision, just need make tested composition that light beam is had suitable absorption by spectral absorption technical Analysis measured component concentration; For absorbing less tested composition, to make measuring beam that long light path is arranged in tested composition usually.Obviously, if make light beam pass a long pipeline that contains tested composition sample or a measuring chamber, so this device with long pipeline or measuring chamber will compare heaviness.
In order to address the above problem, such system has appearred on the market, wherein light beam repeatedly reflection between relative plane mirror, thus prolonged the light path of light beam in tested composition sample, by this kind method, can significantly reduce this kind device size.Yet still there is following defective in this kind device: (1) light energy losses is more.Because incident light is not absolute directional light and is not monochromatic light, so incident light and corresponding reflected light dispersing in tested composition can be more and more serious, can be more serious for this dispersing of ultraviolet light, last received luminous energy is just very limited.(2) cost is higher, in order to improve the energy that receives light, just need to use high power light source or use big lens to remove the very serious measuring beam of converging and diverging, and the price height of high power light source and big convergent lens.(3) measurement is bigger time delay, and the measuring chamber volume that has installed big convergent lens additional becomes big, makes the tested composition replacing velocity of measuring chamber inside slack-off, has improved the time delay of measuring.
The utility model content
The technical matters that the utility model solves is to overcome deficiency of the prior art, provides that a kind of light energy losses is less, cost is lower, measure less multicomponent concentration analysis device and measuring chamber thereof time delay.
The purpose of this utility model is achieved by following technical proposals:
A kind of multicomponent concentration analysis device, has the measuring chamber that a measuring beam to small part is passed, this measuring chamber comprises measures chamber, catoptron, light incident side and light exit side, tested composition flows through in described measurement chamber, described catoptron is installed in to be measured in the chamber or an outer side or relative both sides, it is characterized in that: at least simultaneously be flat-convex reflector in the described catoptron, measuring beam enters described measuring chamber through described light incident side, and after at least once described putting down-convex reflector reflects, be received through described light exit side.
Be coated with reflectance coating on the plane of described putting down-convex reflector.
Described reflectance coating and tested composition are isolated.
Described light incident side comprises convergent lens, and measuring beam is injected described measurement chamber through described convergent lens.
Described light exit side comprises convergent lens, and measuring beam is received through described convergent lens.
A kind of measuring chamber, comprise and measure chamber, catoptron, light incident side and light exit side, tested composition flows through in described measurement chamber, described catoptron is installed in to be measured in the chamber or an outer side or relative both sides, it is characterized in that: at least simultaneously be flat-convex reflector in the described catoptron, measuring beam enters described measuring chamber through described light incident side, and after at least once described putting down-convex reflector reflects, is received through described light exit side.
Be coated with reflectance coating on the plane of described putting down-convex reflector.
Described reflectance coating and tested composition are isolated.
Described light incident side comprises convergent lens, and measuring beam is injected described measurement chamber through described convergent lens.
Described light exit side comprises convergent lens, and measuring beam is received through described convergent lens.
Compared with prior art, the utlity model has following advantage: 1) light energy losses is less, owing to used the flat-convex reflector with converging action, disperses though measuring beam has in tested composition, but by described flat-assembled again the convex reflector reflection time, energy loss is less.2) cost is lower, because dispersing of measuring beam is very little, does not therefore just need to use big convergent lens, thereby has reduced the cost in corresponding measurement chamber.3) it is less to measure time delay, need not to use big convergent lens, has reduced to measure the volume in chamber, and the time swap of the tested composition in the measuring cell shortens so, has correspondingly reduced measurement time delay.
Description of drawings
Fig. 1 is a kind of fluid measurement cell structure synoptic diagram of the present utility model.
Fig. 2 is an one other fluid measuring chamber structural representation of the present utility model.
Fig. 3 is a kind of multicomponent concentration analysis apparatus structure synoptic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment 1:
As shown in Figure 1, the measuring chamber that present embodiment disclosed is applied in the formula flue gas discharge continuous monitoring system on the throne, described measuring chamber comprises measures chamber 8, light incident side 3 (present embodiment is a convergent lens), light exit side 4 (present embodiment is a convergent lens), flat-convex reflector 1.Wherein, described measurement chamber 8 is installed in an end of the measuring sonde 2 of described monitoring system; Described putting down-convex reflector 1 is installed in a side of measuring chamber 8 by its planar side, is coated with reflectance coating on the plane of described putting down-convex reflector 1, and described reflectance coating and tested flue gas are isolated; Light incident side 3, light exit side 4 then are installed in the opposite side of measuring chamber 8.
The working method of above-mentioned measuring chamber is: the flue gas in the pipeline flows through from measuring in the chamber 8, and measuring beam such as ultraviolet light are injected in the tested flue gas by light incident side 3, afterwards by flat-convex reflector 1 reflection; Measuring beam passes tested flue gas once more, and measuring beam is received after by light exit side 4.
Embodiment 2:
As shown in Figure 2, measuring chamber that present embodiment discloses is applied in the flue gas discharge continuous monitoring system, and described measuring chamber comprises measures chamber 5, light incident side 3 (present embodiment is a convergent lens), light exit side 4 (present embodiment is a convergent lens) peace-convex reflector 1.Wherein, described putting down-convex reflector 1 is installed in the relative both sides of measuring chamber 5, wherein have the two sides flat-convex reflector 1 is installed in and measures the outer side in chamber 5, another side is flat-and convex reflector 1 is installed in a side of measuring in the chamber 5, be coated with reflectance coating on the plane of flat-convex reflector 1, described reflectance coating and tested flue gas are isolated; Light incident side 3, light exit side 4 are installed in the same side of measuring chamber 5.Described measurement chamber 5 is provided with air intake opening 7, gas outlet 6, and tested gas feeds from air intake opening 7 and measures chamber 5, and 6 discharge from the gas outlet.
The working method of above-mentioned measuring chamber is: before incident light such as ultraviolet-visible light cause light incident side 3 by optical fiber, inject after assembling and measure in the chamber 5; Measuring beam comes back reflective after passing tested gas between described putting down-convex reflector 1, measure light path thereby improve; At last, measuring beam is by light exit side 4 coupled into optical fibres.
Embodiment 3:
As shown in Figure 3, a kind of multicomponent concentration analysis device is applied in the flue gas continuous blow-down monitoring, and described analytical equipment comprises sampler 11, pretreatment unit 12, measuring chamber, air extractor 30, light source 20, optical pickup apparatus 21 and signal analysis device 22.Described sampler 11 is connected with pretreatment unit 12 and is installed on the tested pipeline 10; Described pretreatment unit 12 is connected by tracheae with measuring chamber; Described light source 20, optical pickup apparatus 21 and signal analysis device 22 are installed in a side of measuring chamber.Described air extractor 30 (present embodiment is a pump) is installed on the downstream gas circuit of described measuring chamber, is used to extract out the flue gas in the tested pipeline 10.Certainly, described air extractor 30 also can be a fluidic device etc.
Described measuring chamber comprises flat-convex reflector 1, measure chamber 5, light incident side 3 (present embodiment is convex lens), light exit side 4 (present embodiment is convex lens), air intake opening and gas outlet.Described putting down-convex reflector 1 is installed in the relative both sides of measuring in the chamber 5; Be coated with reflectance coating on the plane of flat-convex reflector 1, described reflectance coating and tested flue gas are isolated; Described light incident side 3 and light exit side 4 are installed in a side of measuring chamber 5.
The working method of above-mentioned analytical equipment is: described air extractor 30 work, and by the flue gas in the sampler 10 extraction tested pipelines 10, flue gas is handled the back through pretreatment unit 21 and is measured in the chamber 5 by the air intake opening feeding; The ultraviolet light that light source 20 sends is injected by light incident side 3 and is measured in the chamber 5, incident light comes back reflective between flat-convex reflector 1, and then make measuring beam pass tested flue gas back and forth, last measuring beam is received and converts to electric signal by light exit side 4 by optical pickup apparatus 21, and described electric signal feed signals analytical equipment 22 is analyzed the concentration that obtains each composition in the tested flue gas.Flue gas is sent back in the tested pipeline 10 through air extractor 30 after discharge in chamber 5 from measuring.
Though above-mentioned measuring beam can be dispersed between convergent lens peace-convex reflector, through flat-also assembled convex reflector reflection the time, prevented to cause light energy losses because of beam divergence; The plated film face of flat-convex reflector is avoided the corrosion and the pollution of intracavity gas simultaneously.
It is pointed out that above-mentioned embodiment should not be construed as the restriction to the utility model protection domain.Such as, tested composition all is a gas in the foregoing description, tested composition can also be liquid such as water etc. certainly.Key of the present utility model is that measuring beam is reflected by flat-convex reflector after passing tested composition, is also assembled when measuring beam is reflected, and has reduced dispersing of measuring beam; Reflectance coating on the described catoptron and tested composition are isolated simultaneously.Under the situation that does not break away from the utility model spirit, any type of change that the utility model is made all should fall within the protection domain of the present utility model.
Claims (10)
1. multicomponent concentration analysis device, has the measuring chamber that a measuring beam to small part is passed, this measuring chamber comprises measures chamber, catoptron, light incident side and light exit side, tested composition flows through in described measurement chamber, described catoptron is installed in to be measured in the chamber or an outer side or relative both sides, it is characterized in that: at least simultaneously be flat-convex reflector in the described catoptron, measuring beam enters described measuring chamber through described light incident side, and after at least once described putting down-convex reflector reflects, be received through described light exit side.
2. multicomponent concentration analysis device according to claim 1 is characterized in that: be coated with reflectance coating on the plane of described putting down-convex reflector.
3. multicomponent concentration analysis device according to claim 2 is characterized in that: described reflectance coating and tested composition are isolated.
4. according to each described multicomponent concentration analysis device among the claim 1-3, it is characterized in that: described light incident side comprises convergent lens, and measuring beam is injected described measurement chamber through described convergent lens.
5. according to each described multicomponent concentration analysis device among the claim 1-3, it is characterized in that: described light exit side comprises convergent lens, and measuring beam is received through described convergent lens.
6. measuring chamber, comprise and measure chamber, catoptron, light incident side and light exit side, tested composition flows through in described measurement chamber, described catoptron is installed in to be measured in the chamber or an outer side or relative both sides, it is characterized in that: at least simultaneously be flat-convex reflector in the described catoptron, measuring beam enters described measuring chamber through described light incident side, and after at least once described putting down-convex reflector reflects, is received through described light exit side.
7. measuring chamber according to claim 6 is characterized in that: be coated with reflectance coating on the plane of described putting down-convex reflector.
8. measuring chamber according to claim 7 is characterized in that: described reflectance coating and tested composition are isolated.
9. according to each described measuring chamber among the claim 6-8, it is characterized in that: described light incident side comprises convergent lens, and measuring beam is injected described measurement chamber through described convergent lens.
10. according to each described measuring chamber among the claim 6-8, it is characterized in that: described light exit side comprises convergent lens, and measuring beam is received through described convergent lens.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320083485 CN203101264U (en) | 2013-02-25 | 2013-02-25 | Multicomponent concentration analysis device and measuring chamber thereof |
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| CN 201320083485 CN203101264U (en) | 2013-02-25 | 2013-02-25 | Multicomponent concentration analysis device and measuring chamber thereof |
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| CN203101264U true CN203101264U (en) | 2013-07-31 |
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| CN 201320083485 Expired - Fee Related CN203101264U (en) | 2013-02-25 | 2013-02-25 | Multicomponent concentration analysis device and measuring chamber thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196845A (en) * | 2013-02-25 | 2013-07-10 | 陈亚锋 | Multi-component concentration analyzing device and measuring chamber thereof |
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2013
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196845A (en) * | 2013-02-25 | 2013-07-10 | 陈亚锋 | Multi-component concentration analyzing device and measuring chamber thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20150225 |
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| EXPY | Termination of patent right or utility model |