CN204116221U - A kind of gas light splitting absorption module and gas real-time detecting system thereof - Google Patents
A kind of gas light splitting absorption module and gas real-time detecting system thereof Download PDFInfo
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- CN204116221U CN204116221U CN201420512623.2U CN201420512623U CN204116221U CN 204116221 U CN204116221 U CN 204116221U CN 201420512623 U CN201420512623 U CN 201420512623U CN 204116221 U CN204116221 U CN 204116221U
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- gas
- spectrum groupware
- accommodating assembly
- optical channel
- light splitting
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Abstract
The utility model relates to a kind of gas light splitting absorption module, comprises the first spectrum groupware, the second spectrum groupware, the accommodating assembly of the first gas, the accommodating assembly of the second gas and beam splitting lens; Described first spectrum groupware is the cylinder that centre is provided with the first optical channel, and it is connected with the accommodating assembly of described first gas and described second spectrum groupware; Described second spectrum groupware is the cylinder that centre is provided with the second optical channel, and it is connected with the accommodating assembly of described second gas and described first spectrum groupware connects; Described beam splitting lens is arranged on the intersection of described first optical channel and the second optical channel; Described first spectrum groupware makes described first optical channel after connecting with described second spectrum groupware together with the second optical path connection and its angle is 90 degree.Implement gas light splitting absorption module of the present utility model and gas real-time detecting system thereof, there is following beneficial effect: its difference is less, testing result is consistent.
Description
Technical field
The utility model relates to field of gas detection, more particularly, relates to a kind of gas light splitting absorption module and gas real-time detecting system thereof.
Background technology
The current pollutant mainly SO causing urban air pollution
2, NO
2and particle.Therefore, every air to be monitored, the typical pollutant SO reflecting urban air pollution must be carried out
2, NO
2, the monitoring of particle.Oxides of nitrogen is mainly derived from the industries such as electric power supply, nonmetal supply, nonmetallic grounded module, communication apparatus, textile industry, drink manufacturing industry.Oxides of nitrogen is the general name of nitrogen monoxide, nitrogen dioxide and composition thereof, based on nitrogen dioxide (NO2).Nitrogen dioxide works the mischief to healthy and environment.Nitrogen dioxide has harm to health, major determinant respiratory tract.Nitrogen dioxide has harm to environment, pollutes water body, soil and air.Nitrogen dioxide is one of principal element of acid rain and photo-chemical smog formation, is one of main harmful gas causing environmental air pollution.Health and the survival and development of the mankind in serious threat.In the prior art, the principle of monitoring above-mentioned pollutant is that gas with various material is different to the degree of absorption of different wave length optical radiation, and often kind of gas has characteristic absorption wavelength.Gas is relevant with gas volume fraction with the distance of light process in gas to energy absorption degree, meets the absorption theorem of light, i.e. Beer-Lambert law.Around this principle, the concentration that exiting light beam intensity just can extrapolate gas is detected.In actual applications, usually use direct detecting method, but this method is subject to the impact of source noise and other disturbing factor, accuracy of detection and sensitivity lower.Although also there is the method using difference gas detect, the light splitting absorption module used in these Differential Detection is all indivedual making or assembling, and its difference is comparatively large, causes its testing result inconsistent.
Utility model content
The technical problems to be solved in the utility model is, for above-mentioned indivedual making of prior art or assembling, difference is comparatively large, testing result is inconsistent defect, provide a kind of batch making, difference are less, testing result is consistent a kind of gas light splitting absorption module and gas real-time detecting system thereof.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of gas light splitting absorption module, comprise the first spectrum groupware, the second spectrum groupware, the accommodating assembly of the first gas, the accommodating assembly of the second gas and beam splitting lens; Described first spectrum groupware is the cylinder that centre is provided with the first optical channel, and its one end is connected with the accommodating assembly of described first gas, and its other end is connected with described second spectrum groupware; Described second spectrum groupware is the cylinder that centre is provided with the second optical channel, and its one end is connected with the accommodating assembly of described second gas, and its other end is connected with described first spectrum groupware; Described beam splitting lens is arranged on the intersection of described first optical channel and the second optical channel; To be its angle of inclination be in one end that described first spectrum groupware is connected with the described second spectrum groupware inclined-plane of 45 degree, its inclined-plane contacted with described first spectrum groupware with described second spectrum groupware matches, and makes described first optical channel together with the second optical path connection and its angle is 90 degree; The accommodating assembly of described first gas and the accommodating assembly of the second gas are the column of hollow, and part is vacated for making the accommodating gas by light parameter change wherein in its inside.
Further, described second spectrum groupware is also provided with and vertical with described second optical channel axis direction enters optical channel, described in enter optical channel be connected with described first spectrum groupware and the second spectrum groupware after the first optical channel align.
Further, described first optical channel is respectively arranged with the lens fixed lobe for fixing described beam splitting lens when described first spectrum groupware is connected with the second spectrum groupware on the inwall of described first spectrum groupware one end with described second optical channel near described second spectrum groupware one end; Described lens fixed lobe fixes the angle that described beam splitting lens makes it divide described first optical channel and the second optical channel equally to be formed.
Further, the correspondence position of described first spectrum groupware and the second spectrum groupware is also provided with the attachment screw hole that described first spectrum groupware and the second spectrum groupware are linked together.
Further, the outside surface of one end that described first spectrum groupware is connected with the accommodating assembly of described first gas is provided with the screw thread of preseting length, by with the threaded engagement be arranged on described first gas accommodating assembly one end inwall, described first spectrum groupware is connected with the accommodating assembly of the first gas; Described second spectrum groupware is provided with preseting length screw thread with the outside surface of one end that the accommodating assembly of described second gas is connected, by with the threaded engagement be arranged on described second gas accommodating assembly one end inwall, described second spectrum groupware is connected with the accommodating assembly of the second gas.
Further, also comprise the first coupling assembling for connecting the described first gas accommodating assembly other end and Optical Receivers and be connected the second coupling assembling of the accommodating assembly other end of described second gas and another Optical Receivers; The passage that light is passed through is provided with in the middle part of described first coupling assembling and the second coupling assembling.
Further, the inwall of the accommodating assembly other end of described first gas is also provided with preseting length screw thread, its be arranged on the threaded engagement of described first coupling assembling one end outside surface, make described first coupling assembling be fixed on the other end of the accommodating assembly of described first gas; The inwall of the accommodating assembly other end of described second gas is also provided with preseting length screw thread, its be arranged on the threaded engagement of described second coupling assembling one end outside surface, make described second coupling assembling be fixed on the other end of the accommodating assembly of described second gas.
Further, the two ends inwall of the accommodating assembly of described first gas and the accommodating assembly of the second gas is also respectively arranged with circular projection, for fixing when being connected with described spectrum groupware and coupling assembling at the accommodating assembly of described gas and compressing the isolation lens being arranged on inside, described gas accommodating assembly two ends, the inner space of the accommodating assembly of described first gas and the accommodating assembly of the second gas is made to form insulating space, with indwelling gas respectively.
Further, the sidewall of the accommodating assembly of described first gas and the accommodating assembly of the second gas is also respectively arranged with two and connects its inner spaces and outside, for making gas pass in and out its inner space through hole.
The utility model also relates to a kind of gas real-time detecting system, described system adopts Differential Detection, identical light is received by different receiver modules respectively by after calibrating gas and gas to be measured, compares the change of the optical parameter that two receiver modules receive, obtain the parameter of gas to be measured; It adopts gas light splitting absorption module to carry out light splitting to the light of same light source, and makes it be received by different gas; Wherein, described gas light splitting absorption module is the gas light splitting absorption module described in above-mentioned any one.
Implement gas light splitting absorption module of the present utility model and gas real-time detecting system thereof, there is following beneficial effect: cooperatively interact owing to adopting the inclined-plane of 45 degree, and beam splitting lens is arranged on this inclined-plane, simultaneously, first spectrum groupware is relative fixing again with the structure of the second spectrum groupware, thus its light source enters, light splitting and optical transport approach all relatively fixing; And the accommodating assembly of gas is connected with spectrum groupware respectively, the optical transport approach thus after light splitting is also relatively-stationary.Therefore its difference is less, testing result is consistent.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of gas light splitting absorption module in the utility model gas light splitting absorption module and gas real-time detecting system embodiment thereof;
Fig. 2 is the structural representation of the second spectrum groupware in described embodiment;
Fig. 3 is the structural representation of the accommodating assembly of the first gas in described embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further.
As shown in Figure 1,2 and 3, in gas light splitting absorption module of the present utility model and gas real-time detecting system embodiment thereof, this gas light splitting absorption module comprises the accommodating assembly 4 of the first spectrum groupware 1, second spectrum groupware 2, first gas accommodating assembly 3, second gas, beam splitting lens 5, first coupling assembling 6 and the second coupling assembling 7; Wherein, the first spectrum groupware 1 is the middle cylinder being provided with the first optical channel 11, and its one end is connected with the accommodating assembly 3 of the first gas, and its other end is connected with the second spectrum groupware 2; Second spectrum groupware 2 is the middle cylinder (referring to Fig. 2) being provided with the second optical channel 21, and its one end is connected with the accommodating assembly 4 of the second gas, and its other end is connected with the first spectrum groupware 1; Beam splitting lens 5 is arranged on the intersection of the first optical channel 11 and the second optical channel 21, and when the first spectrum groupware 1 and the second spectrum groupware 2 are fixed together, this beam splitting lens 5 is clamped and fixed in wherein; In the present embodiment, to be its angle of inclination be in one end that first spectrum groupware 1 is connected with the second spectrum groupware 2 inclined-plane of 45 degree, its inclined-plane contacted with the first spectrum groupware 1 with described second spectrum groupware 2 (refers to Fig. 2, in fact, the face that first spectrum groupware 1 and the second spectrum groupware 2 contact is all inclined-planes) match, after above-mentioned two inclined-planes are coincide, the first optical channel 11 and the second optical channel 21 links together and its angle is 90 degree.
Refer to Fig. 2, in fig. 2, the second spectrum groupware 2 be also provided with and vertical with the second optical channel 21 length axes direction enter optical channel 22, enter optical channel 22 be connected with the first spectrum groupware 1 and the second spectrum groupware 2 after the first optical channel 11 align.In the present embodiment, above-mentioned enter optical channel 22 enter into above-mentioned second optical channel 21 for the light enabling light source send, and to enter on the above-mentioned beam splitting lens 5 be arranged in the middle of two spectrum groupware with the angle of setting, make its light splitting.After light splitting, the incident ray of light source is divided into two-way, a road reflected light, enters above-mentioned second optical channel 21 and transmits; Another road enters the first optical channel 11 through above-mentioned beam splitting lens 5 and transmits.In addition, in fig. 2, by being provided with the lens fixed lobe 23 for fixing beam splitting lens 5 when the first spectrum groupware 1 is connected with the second spectrum groupware 2 through one end of the first optical channel 11 on the inwall of the second optical channel 21; Similarly, the first optical channel 11 is also respectively arranged with such lens fixed lobe on the inwall of one end of the second spectrum groupware 2.When the first spectrum groupware 1 is connected with the second spectrum groupware 2, said lens fixed lobe defines the position of beam splitting lens 5 and arranges angle, the angle making beam splitting lens 5 divide the first optical channel 11 and the second optical channel 21 equally to be formed, be convenient to its light splitting, thus make its point of optical parameter be fixing.
In the present embodiment, the correspondence position of the first spectrum groupware 1 and the second spectrum groupware 2 is also provided with the attachment screw hole 12 that the first spectrum groupware 1 and the second spectrum groupware 2 are linked together.In the present embodiment, the first spectrum groupware 1 and the second spectrum groupware 2 are respectively arranged with multiple attachment screw hole 12, and its setting position is corresponding.Time above-mentioned first spectrum groupware 1 and the second spectrum groupware 2 link together time, multiple screw or screw is used to be each passed through above-mentioned attachment screw hole 12 with coordinating of nut, and make it tighten up, above-mentioned first spectrum groupware 1 and the second spectrum groupware 2 can be linked together.
In the present embodiment, refer to Fig. 3, the accommodating assembly of the first gas 3 is roughly the same with the structure of the accommodating assembly of the second gas 4, and Fig. 3 shows the concrete structure of the accommodating assembly of the first gas.In the present embodiment, the accommodating assembly of above-mentioned first gas 3 and the accommodating assembly 4 of the second gas are the column of hollow, and part is vacated for making the accommodating gas by light parameter change wherein in its inside.One end of the accommodating assembly of first gas 3 and the accommodating assembly of the second gas 4 is connected in above-mentioned first spectrum groupware 1 and the second spectrum groupware 2, and the other end of the accommodating assembly 3 of 1 first gas is connected with an Optical Receivers by the first coupling assembling 6; Second gas accommodating assembly 2 other end is connected with another Optical Receivers by the second coupling assembling 7; Wherein, the middle part of the first coupling assembling 6 and the second coupling assembling 7 is provided with the passage that light is passed through.When the light after above-mentioned light splitting, respectively by the gas with various be contained in the accommodating assembly of above-mentioned first gas 3 and the accommodating assembly 4 of the second gas, (these two kinds of gas one are calibrating gas, another kind is gas to be measured, be contained in respectively in different assemblies) after reach above-mentioned different Optical Receivers, due to the difference of gas, the change of its light parameter is also different, after obtaining Parameters variation respectively, then it is compared, the parameter of wherein gas to be measured can be obtained.
In the present embodiment, above-mentioned first spectrum groupware 1 and the accommodating assembly of the first gas 3, second spectrum groupware 2 and the accommodating assembly 3 of the accommodating assembly of the second gas 4, first gas and the first coupling assembling 6 and the connection between the second gas accommodating device and the second coupling assembling 7 are all connected by screw thread, not only for convenience detach, the characteristics such as the stability of system, impermeability, corrosion resistance can also be ensured.Specifically, the screw thread that the outside surface of one end that the first spectrum groupware 1 is connected with the accommodating assembly 3 of the first gas is provided with preseting length (refers to 24 in Fig. 2, although shown in Fig. 2 is the second spectrum groupware 2, but in the structure at connecting thread place, first spectrum groupware 1 and the second spectrum groupware 2 are identical), by coordinating with the screw thread (referring to 31 in Fig. 3 or 32) be arranged on the inwall of the first gas accommodating assembly 3 one end, the first spectrum groupware 1 is connected with the accommodating assembly 3 of the first gas; Second spectrum groupware 2 is provided with preseting length screw thread 24 with the outside surface of one end that the accommodating assembly 4 of the second gas is connected, by with the threaded engagement be arranged on the inwall of the second gas accommodating assembly 4 one end, the second spectrum groupware 2 is connected with the accommodating assembly 4 of the second gas.And on the inwall of the other end (namely away from the first spectrum groupware 1) of the accommodating assembly 3 of the first gas, be also provided with preseting length screw thread (31 in Fig. 3 or 32), its be arranged on the threaded engagement of first coupling assembling 6 one end outside surface, make the first coupling assembling 6 be fixed on the other end of the accommodating assembly 3 of the first gas; The inwall of the second gas accommodating assembly 4 other end is also provided with preseting length screw thread, its be arranged on the threaded engagement of second coupling assembling 7 one end outside surface, make the second coupling assembling 7 be fixed on the other end of the accommodating assembly 4 of the second gas.
In addition, in the present embodiment, the two ends inwall of the accommodating assembly of above-mentioned first gas 3 and the accommodating assembly of the second gas 4 is also respectively arranged with circular protruding 33(and refers to Fig. 3), this is circular protruding 33 for fixing when being connected with spectrum groupware (1,2) and coupling assembling (6,7) at the accommodating assembly of gas (3,4) and compressing the isolation lens (35 in Fig. 3 and 36) being arranged on the accommodating assembly of gas (3,4) inside, two ends, the inner space of the accommodating assembly of the first gas 3 and the accommodating assembly 4 of the second gas is made to form insulating space, with indwelling gas respectively.Certainly, in the present embodiment, these lens, except the effect of above-mentioned isolation, can also play other effect.Such as, be the collimate light entered or focusing.In the present embodiment, because the accommodating assembly of the first gas 3 is roughly the same with the structure of the accommodating assembly of the second gas 4, so only give the schematic diagram of the accommodating assembly of the first gas in Fig. 3, in fact, shown in the structure of the accommodating assembly of the second gas 4 and Fig. 3 is also roughly the same.In addition, the lens being labeled as 35 in Fig. 3 are collimation lenses, and the lens being labeled as 36 are condenser lenses.The principle arranged makes it collimate, and make it focus on when light leaves.
In figure 3, the sidewall of the accommodating assembly 3 of the first gas is also respectively arranged with two and connects its inner spaces and outside, for making gas pass in and out its inner space through hole 34; Be convenient to carry out gas inflated or replacing to above-mentioned first gas accommodating device inside.After gas has been filled with, this through hole 34 has made it block by valve or stopper, makes the inside and outside isolation of the accommodating assembly of this first gas 3.In addition, the accommodating assembly 4 of the second gas is also so arrange.
At the present embodiment, also relate to a kind of gas real-time detecting system, described system adopts Differential Detection, and identical light is received by different receiver modules respectively by after calibrating gas and gas to be measured, compare the change of the optical parameter that two receiver modules receive, obtain the parameter of gas to be measured; It adopts gas light splitting absorption module to carry out light splitting to the light of same light source, and makes it be received by different gas; Wherein, described gas light splitting gas absorption spectral module is above-mentioned gas spectral module.
At the present embodiment, each assembly of above-mentioned gas light splitting absorption module adopts engineering plastics ABS material to be obtained by injection moulding, because ABS is the very good resin of a kind of combination property, ABS resin is acrylonitrile-butadiene-styrene copolymer, English name Acrylonitrile-butadine-styrene (being called for short ABS).ABS is nontoxic, micro-yellow, in broader temperature range, have higher impact strength, and heat distortion temperature is than high, and corrosion resistance is good, good stability of the dimension, and shrinkage factor is within the scope of 0.4%-0.8%.ABS has good molding processibility, and product surface is highly polished.Empirical tests can meet the designing requirement (in the present embodiment, adopting laser to test NO2 gas) of gas detecting system.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a gas light splitting absorption module, is characterized in that, comprises the first spectrum groupware, the second spectrum groupware, the accommodating assembly of the first gas, the accommodating assembly of the second gas and beam splitting lens; Described first spectrum groupware is the cylinder that centre is provided with the first optical channel, and its one end is connected with the accommodating assembly of described first gas, and its other end is connected with described second spectrum groupware; Described second spectrum groupware is the cylinder that centre is provided with the second optical channel, and its one end is connected with the accommodating assembly of described second gas, and its other end is connected with described first spectrum groupware; Described beam splitting lens is arranged on the intersection of described first optical channel and the second optical channel; To be its angle of inclination be in one end that described first spectrum groupware is connected with the described second spectrum groupware inclined-plane of 45 degree, its inclined-plane contacted with described first spectrum groupware with described second spectrum groupware matches, and makes described first optical channel together with the second optical path connection and its angle is 90 degree; The accommodating assembly of described first gas and the accommodating assembly of the second gas are the column of hollow, and part is vacated for making the accommodating gas by light parameter change wherein in its inside.
2. gas light splitting absorption module according to claim 1, it is characterized in that, described second spectrum groupware is also provided with and vertical with described second optical channel axis direction enters optical channel, described in enter optical channel be connected with described first spectrum groupware and the second spectrum groupware after the first optical channel align.
3. gas light splitting absorption module according to claim 2, it is characterized in that, described first optical channel is respectively arranged with the lens fixed lobe for fixing described beam splitting lens when described first spectrum groupware is connected with the second spectrum groupware on the inwall of described first spectrum groupware one end with described second optical channel near described second spectrum groupware one end; Described lens fixed lobe fixes the angle that described beam splitting lens makes it divide described first optical channel and the second optical channel equally to be formed.
4. gas light splitting absorption module according to claim 3, is characterized in that, the correspondence position of described first spectrum groupware and the second spectrum groupware is also provided with the attachment screw hole that described first spectrum groupware and the second spectrum groupware are linked together.
5. gas light splitting absorption module according to claim 4, it is characterized in that, the outside surface of one end that described first spectrum groupware is connected with the accommodating assembly of described first gas is provided with the screw thread of preseting length, by with the threaded engagement be arranged on described first gas accommodating assembly one end inwall, described first spectrum groupware is connected with the accommodating assembly of the first gas; Described second spectrum groupware is provided with preseting length screw thread with the outside surface of one end that the accommodating assembly of described second gas is connected, by with the threaded engagement be arranged on described second gas accommodating assembly one end inwall, described second spectrum groupware is connected with the accommodating assembly of the second gas.
6. gas light splitting absorption module according to claim 5, it is characterized in that, also comprise the first coupling assembling for connecting the described first gas accommodating assembly other end and Optical Receivers and be connected the second coupling assembling of the accommodating assembly other end of described second gas and another Optical Receivers; The passage that light is passed through is provided with in the middle part of described first coupling assembling and the second coupling assembling.
7. gas light splitting absorption module according to claim 6, it is characterized in that, the inwall of the accommodating assembly other end of described first gas is also provided with preseting length screw thread, its be arranged on the threaded engagement of described first coupling assembling one end outside surface, make described first coupling assembling be fixed on the other end of the accommodating assembly of described first gas; The inwall of the accommodating assembly other end of described second gas is also provided with preseting length screw thread, its be arranged on the threaded engagement of described second coupling assembling one end outside surface, make described second coupling assembling be fixed on the other end of the accommodating assembly of described second gas.
8. gas light splitting absorption module according to claim 7, it is characterized in that, the two ends inwall of the accommodating assembly of described first gas and the accommodating assembly of the second gas is also respectively arranged with circular projection, for fixing when being connected with described spectrum groupware and coupling assembling at the accommodating assembly of described gas and compressing the isolation lens being arranged on inside, described gas accommodating assembly two ends, the inner space of the accommodating assembly of described first gas and the accommodating assembly of the second gas is made to form insulating space, with indwelling gas respectively.
9. gas light splitting absorption module according to claim 8, it is characterized in that, the sidewall of the accommodating assembly of described first gas and the accommodating assembly of the second gas is also respectively arranged with two and connects its inner spaces and outside, for making gas pass in and out its inner space through hole.
10. a gas real-time detecting system, it is characterized in that, described system adopts Differential Detection, and identical light is received by different receiver modules respectively by after calibrating gas and gas to be measured, compare the change of the optical parameter that two receiver modules receive, obtain the parameter of gas to be measured; It adopts gas light splitting absorption module to carry out light splitting to the light of same light source, and makes it be received by different gas; Wherein, described gas light splitting absorption module is the gas light splitting absorption module as described in claim 1-9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512623.2U CN204116221U (en) | 2014-09-05 | 2014-09-05 | A kind of gas light splitting absorption module and gas real-time detecting system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420512623.2U CN204116221U (en) | 2014-09-05 | 2014-09-05 | A kind of gas light splitting absorption module and gas real-time detecting system thereof |
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| Publication Number | Publication Date |
|---|---|
| CN204116221U true CN204116221U (en) | 2015-01-21 |
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|---|---|---|---|
| CN201420512623.2U Expired - Fee Related CN204116221U (en) | 2014-09-05 | 2014-09-05 | A kind of gas light splitting absorption module and gas real-time detecting system thereof |
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| Country | Link |
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| CN (1) | CN204116221U (en) |
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2014
- 2014-09-05 CN CN201420512623.2U patent/CN204116221U/en not_active Expired - Fee Related
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