CN202393699U - Sample pool - Google Patents
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- CN202393699U CN202393699U CN2011204378567U CN201120437856U CN202393699U CN 202393699 U CN202393699 U CN 202393699U CN 2011204378567 U CN2011204378567 U CN 2011204378567U CN 201120437856 U CN201120437856 U CN 201120437856U CN 202393699 U CN202393699 U CN 202393699U
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Abstract
The utility model discloses a sample pool for carrying out photo ionization or photolysis on lasers to combine a multi-pass absorption spectrum technology. The sample pool comprises a photo ionization (or photolysis) box, I-shaped flanges, I-shaped corrugated pipes, a flange plate A, a flange plate B, a quartz lens and a planoconcave lens, wherein the photo ionization (or photolysis) box is a hollow box body, four side surfaces of the hollow box body are respectively provided with through holes, the hollow box body is respectively connected with the I-shaped flange at each through hole position, and the I-shaped flanges on opposite side surfaces in pairs are as a group, wherein the outer ends of the one group of I-shaped flanges are respectively used for clamping the quartz lens through the flange plate A, the outer ends of the other group of the I-shaped flanges are respectively connected with an I-shaped corrugated pipes, and the outer ends of the two I-shaped corrugated pipes are respectively used for clamping the planoconcave lens through the flange plate B; and the top surface of the photo ionization (or photolysis) box is provided with a sample inlet, an air pumping hole and a pressure measuring hole. The sample pool disclosed by the utility model has excellent sealing performance and is suitable for devices for detecting photo ionization (or photolysis) products through a multi-pass absorption spectrum technology.
Description
Technical field
The utility model relate to a kind of with laser photolysis from (photoionization) and the sample cell that many logical absorption spectrum technology combine, be specifically related to a kind of set laser photodissociation (photoionization) and lead to the absorption spectrum technology in the twin-beam square crossing sample cell of one more.
Background technology
Air environmental pollution has become people's question of common concern in the world wide, and a large amount of chemical substances that mankind's activity produces have produced severe bad influence and harm to atmospheric environment, like the destruction of global warming and ozonosphere, and acid rain, photo-chemical smog etc.Environmental pollution and ecological disruption have restricted expanding economy to a certain extent and have threatened human beings'health day by day.
Atmosphere pollution of a great variety; Mainly exist with gaseous state and aerosol form; Threaten bigger maximum discharge gaseous material to mainly contain carbon dioxide, methane isothermal chamber gas to ecologic environment and human health; Poisonous, harmful gases such as oxides of nitrogen, sulphuric dioxide, phosphorus, carbon monoxide, halogenated hydrocarbons, volatile organic matter, these toxic and harmfuls also can further be converted into the secondary pollution of atmosphere under the effect of solar ultraviolet light, cause more serious atmospheric pollution.Therefore; Accurately measure these micropollution compositions, understand the photochemistry of atmosphere pollution, and set up corresponding atmospheric environment model; Air environmental pollution mechanism and current environment situation and secular variation trend are carried out forecasting research, have very important significance.
Laser spectrum tech has obtained in fields such as physics, chemistry, chemistry, analysis and atmospheric environment detections to use widely with its high resolution, sensitivity, degree of accuracy and advantage such as harmless, safe, quick, is one of the best technology in atmosphere environment supervision field.
Yet; Micro constitutent detection based on the absorption spectrum technology necessarily requires to be had characteristic absorpting spectruming line by detected object; Just the level structure of measurand will with the output wavelength coupling of the used LASER Light Source of spectral technique, this is the theoretical foundation that spectral technique is used for the micro constitutent feature detection.Yet in the characteristic spectrum detection analysis of micro constitutent, the characteristic absorpting spectruming line of some micro constitutent does not have the LASER Light Source of corresponding wavelength, can't use the absorption spectrum technology to survey; Though the characteristic absorpting spectruming line of some micro constitutent has the LASER Light Source of corresponding wavelength, the laser instrument of this wave band involves great expense, and makes the detection cost too high.
Summary of the invention
How logical the purpose of the utility model is in order to solve the laser absorption spectrum technology in the defective aspect the detection of no characteristic absorption micro constitutent, provide a kind of and will absorb the detection that laser spectrum tech is effective to not have the micro constitutent of characteristic absorption.
In order to achieve the above object, the utility model provides a kind of sample cell, comprises photoionization case or photodissociation case, I-shaped flange, I-shaped corrugated tube, ring flange A, ring flange B, fused silica glass and planoconcave lens; Said photoionization case or photodissociation case are hollow box body, four sides of casing be respectively equipped be communicated with box cavity and with the circular hole of lateral vertical, wherein any two coaxial to the circular hole on the side; In the casing outside, be connected an I-shaped flange with each circular hole is coaxial respectively, and to be connected two be one group to the I-shaped flange on the side; Wherein a ring flange A clamping one fused silica glass is respectively passed through in the outer end of one group of I-shaped flange, and another outer end of organizing I-shaped flange respectively connects an I-shaped corrugated tube, and two I-shaped corrugated tube outer ends are respectively through ring flange B clamping one planoconcave lens; The end face of said photoionization case or photodissociation case is provided with sample holes, aspirating hole and pressure tap.
The upper bottom surface of said photodissociation case or photoionization case is a cover plate; Cover plate is connected with box sealing; Said sample holes, aspirating hole and pressure tap are located on the cover plate, and communicate with the hollow space of photodissociation (photoionization) case.Wherein, photodissociation (photoionization) case is the stainless steel square, and its hollow space is cylindric.
Two ring flange equal intervals of the I-shaped corrugated tube in both sides are distributed with a plurality of positioning threads bars and the combination of a plurality of fine adjustment screw.Said positioning threads bar is provided with three, is stainless steel positioning threads bar.
Fine adjustment screw combination on the I-shaped corrugated tube in both sides is equipped with three groups, on every group of fine adjustment screw combination and a fine adjustment screw extension rod offset between the ring flange that is arranged on I-shaped corrugated tube; Wherein be arranged in the fine adjustment screw extension rod on the I-shaped corrugated tube of casing one side, two is stainless steel fine adjustment screw extension rod, and one is piezoelectric ceramics fine adjustment screw extension rod; The fine adjustment screw extension rod that is positioned on the I-shaped corrugated tube of casing opposite side is stainless steel fine adjustment screw extension rod.
Between above-mentioned photodissociation (photoionization) case and cover plate, I-shaped flange A, the I-shaped flange B, between I-shaped flange A and the ring flange A, be equipped with O shape rubber seal between I-shaped corrugated tube and I-shaped flange B, the ring flange B.
The utility model is compared prior art and is had the following advantages:
Sample cell of the present invention; Absorption cell and laser photolysis that laser is led in the absorption spectrum technology more combine from photodissociation (photoionization) pond in (photoionization) technology; Through lead to the product after the absorption spectrum technology is surveyed parent molecule photodissociation (photoionization) with laser more; Reach the purpose of surveying parent material concentration, having solved at parent molecule does not have under the corresponding situation of characteristic absorpting spectruming line the purpose that still can use the laser absorption spectrum technology to survey.
Adopt piezoelectric ceramics fine setting extension rod to carry out micro stretching simultaneously and contract, reach the purpose that changes two planoconcave lens depth of parallelisms, make between laser and the resonator cavity and satisfy coupling condition, thereby will lead to the detection that the absorption spectrum technology is used for photodissociation (photoionization) product more.
Description of drawings
Fig. 1 is the perspective view of the said absorption cell of the utility model.
Fig. 2 is the assembling synoptic diagram of photodissociation case and cover plate thereof among Fig. 1.
Fig. 3 is the structural representation of I-shaped flange among Fig. 1.
Fig. 4 is the structural representation of I-shaped corrugated tube among Fig. 1.
Fig. 5 is the assembling synoptic diagram of positioning threads bar among Fig. 1, fine adjustment screw extension rod, fine adjustment screw combination and I-shaped corrugated tube.
Among the figure, 1-photodissociation (photoionization) case, 2-cover plate, the I-shaped flange A of 3-, the I-shaped flange B of 4-; The I-shaped corrugated tube of 5-, 6-ring flange A, 7-ring flange B, 8-fused silica glass, 9-planoconcave lens; 10-positioning threads bar, 11-stainless steel fine adjustment screw extension rod, 12-piezoelectric ceramics fine adjustment screw extension rod, the combination of 13-fine adjustment screw, 14-sample holes; The 15-aspirating hole, 16-pressure tap, 17-small size ring groove, 18-large scale O shape rubber seal; 19-tapped through hole (circular hole), 20-through hole (circular hole) A, 21-through hole (circular hole) B, 22-large scale ring groove; 23-does not have tapped through hole (circular hole), 24-threaded hole, 25-fine adjustment screw combine and assemble hole, 26-fine adjustment screw extension rod pilot hole.
Embodiment
Below in conjunction with accompanying drawing the said sample cell of the utility model is elaborated.
As shown in Figure 1; The utility model combines from (photoionization) laser photolysis with many logical absorption spectrum technology; The photodissociation that the main body of sample cell is processed by stainless steel (photoionization) case 1 be fixed on two of photodissociation (photoionization) case 1 the I-shaped flange 3 of the stainless steel on the side formed the I-shaped flange 4 of the stainless steel on the side with two other, the cover plate of processing with stainless steel on the photodissociation case 12 seals; All the threaded hole 24 and the no tapped through hole (circular hole) 23 of correspondence position are fixed in the above through being provided with screw between I-shaped flange 3 and I-shaped flange 4 and cover plate 2 and the photodissociation case 1; Adopt the method for ring flange clipped lens, fused silica glass (substrate) 8 is fixed in the outside of I-shaped flange 3, be used for photodissociation (photoionization) light path with ring flange A6.At the opposite side of I-shaped flange 4, connect an I-shaped corrugated tube 5 again, clamping O shape rubber seal sealing between I-shaped corrugated tube 5 and the I-shaped flange 4; Adopt the method for ring flange clipped lens, the planoconcave lens 9 that concave surface is coated with high-reflecting film is fixed on the other end at I-shaped corrugated tube 5, to be used for the light path that laser leads to the absorption spectrum technology more with ring flange B7.
In conjunction with Fig. 2, photodissociation (photoionization) case 1 is to use the hollow box body of the outward appearance of stainless steel making as square, and it is cylindric that hollow parts is.Center at four lateral surfaces of photodissociation (photoionization) case 1; Be provided with and photodissociation (photoionization) case 1 boring partially communicating through hole (circular hole) 20 and through hole (circular hole) 21 respectively; Wherein two through holes (circular hole) 20 are located at two of photodissociation (photoionization) case respectively to side and coaxial, two through holes (circular hole) 21 be located at respectively photodissociation (photoionization) case in addition two to side and coaxial; Center with through hole (circular hole) 20 and through hole (circular hole) 21 is the center of circle; Four lateral surfaces at photodissociation (photoionization) case 1 are provided with small size circle shape groove 17 respectively; Be used for built-in O shape rubber seal;, I-shaped flange 3, plays sealing function with the clamping of O shape rubber seal therebetween when being connected with photodissociation (photoionization) case 1 with I-shaped flange 4; Upper surface at photodissociation (photoionization) case; Be provided with one with the coaxial large scale ring groove 22 in cylindric hollow photodissociation (photoionization) chamber; Built-in large scale O shape rubber seal 18; Be used for the sealing between cover plate 2 and photodissociation (photoionization) case 1,, the two be fixed as one with screw through being arranged on the threaded hole 24 on photodissociation (photoionization) case 1 and being arranged on the no tapped through hole (circular hole) 23 on the cover plate 2.Cover plate 2 is provided with sample holes 14, aspirating hole 15 and pressure tap 16; All be respectively equipped with around three holes with the concentric small size ring groove of aperture 17 be distributed in a threaded hole 24 on the circumference; External device can be set as required, also can obsolete the time, use flangeseal.
In conjunction with Fig. 3; The side flange dish of I-shaped flange A3 and I-shaped flange B4 is provided with small size ring groove 17 and six tapped through holes (circular hole) 19 coaxial with flange hole; According to the integral body among Fig. 1 assembling situation, no tapped through hole (circular hole) 23 and no tapped through hole (circular hole) 23 on I-shaped corrugated tube 5 ring flanges among Fig. 4 on the ring flange A6 among the position of tapped through hole (circular hole) 19 and size and Fig. 1 are corresponding; 6 through holes (circular hole) evenly are set on another ring flange of I-shaped flange A3 and I-shaped flange B4, are arranged on threaded hole 24 couplings of 1 four sides of photodissociation (photoionization) case among the size of through hole (circular hole) and distribution and Fig. 2.
In conjunction with Fig. 4; Two ring flanges of I-shaped corrugated tube 5 adopt asymmetric design; The tapped through hole (circular hole) 19 and fine adjustment screw extension rod pilot hole 26 of six no tapped through hole (circular holes) 23 and two kind of different size evenly are set on ring flange; 12 apertures evenly distribute; Tapped through hole (circular hole) 19 and fine adjustment screw extension rod pilot hole 26 and no tapped through hole (circular hole) 23 alternate settings; Threaded hole 19 also alternate settings (distribution sequence that is the three does not have tapped through hole (circular hole) 23 for no tapped through hole (circular hole) 23-tapped through hole (circular hole) 19-has tapped through hole (circular hole) 23-fine adjustment screw extension rod pilot hole 26-, is covered with up to 12 holes) with threaded hole 23; On another ring flange of I-shaped corrugated tube 5, at circumferential position six through holes (circular hole) are set evenly apart from the core same radius, wherein three is tapped through hole (circular hole) 19, other three is fine adjustment screw combine and assemble hole 25; At circumferential position three threaded holes 24 are set evenly apart from another same radius of core; Be the center with the core simultaneously; A small size circle shape groove 17 is set, and tapped through hole (circular hole) 19 that requirement simultaneously is distributed on 5 two flange surfaces of I-shaped corrugated tube is coaxial.
In conjunction with Fig. 1, Fig. 3 and Fig. 4; Through being arranged on the no tapped through hole (circular hole) 23 on the I-shaped corrugated tube 5 and being arranged on the threaded hole 24 on the I-shaped flange B4; With screw I-shaped corrugated tube 5 is connected with I-shaped flange B4, makes I-shaped corrugated tube 5 coaxial with I-shaped flange B4.
In conjunction with Fig. 1, Fig. 4 and Fig. 5; Be connected with two flange surfaces of three positioning threads bars of processing with the stainless steels of tapped through hole (circular hole) 19 coupling 10 I-shaped corrugated tube 5; Through the elasticity of adjustment positioning threads bar 10, make two flange surfaces keeping parallelism under the assembling situation of I-shaped corrugated tube 5; Two stainless steel fine adjustment screw extension rods 11 and a piezoelectric ceramics fine adjustment screw extension rod 12 are fixed on fine adjustment screw extension rod pilot hole 26 places on the I-shaped corrugated tube 5; The assembling fine adjustment screw combination 13 at 25 places, fine adjustment screw combine and assemble hole can contact fine adjustment screw combination 13 respectively with piezoelectric ceramics fine adjustment screw extension rod 12 with stainless steel fine adjustment screw extension rod 11; An O shape rubber seal is placed at small size circle shape groove 17 places I-shaped corrugated tube 5 links to each other flange surface with ring flange B7 on; Adopt the method for ring flange clipped lens;, the planoconcave lens 9 that concave surface is coated with high-reflecting film is fixed on the outer flange card of I-shaped corrugated tube 5 through being arranged on the threaded hole 24 on no tapped through hole (circular hole) 23 and I-shaped corrugated tube 5 ring flanges on the ring flange B7 with screw with ring flange 7.The assembling of another I-shaped corrugated tube is consistent therewith in the utility model, and unique difference is that three fine adjustment screw extension rods all adopt stainless steel, so description no longer separately.
In conjunction with Fig. 1 to Fig. 5; The photodissociation of the said sample cell of the utility model (photoionization) system; Form by ring flange 6, eyeglass 8, I-shaped flange A3, photodissociation (photoionization) case 1, I-shaped flange A3, fused silica glass 8 and ring flange A6 successively, be used for the sample gas in laser dissociation (ionization) sample cell.The laser of said sample cell leads to the absorption spectrum detection system more; Be made up of ring flange B7, planoconcave lens 9, I-shaped corrugated tube 5, I-shaped flange B4, photodissociation (photoionization) case 1, I-shaped flange B4, I-shaped corrugated tube 5, planoconcave lens 9 and ring flange B7 successively, with the how logical absorption spectrum technology of being used for is used for the detection of photodissociation (photoionization) product.
In conjunction with Fig. 1 and Fig. 5; When photodissociation (photoionization) product in application laser leads to absorption spectrum technology detection sample cell more is surveyed; Elder generation's coarse adjustment is arranged on two stainless steel positioning threads bars 10 on the I-shaped corrugated tube 5 makes the planoconcave lens 9 that is fixed on the I-shaped corrugated tube 5 parallel, again through fine tuning fine adjustment screw combination 13, further improves the depth of parallelism of two high reflectance planoconcave lens 9; Make two high reflectance plano-concave mirrors form an optical resonator; In how logical laser absorption spectrum measured, the micro stretching through piezoelectric ceramics fine adjustment screw extension rod 11 contracted, and reaches the purpose that changes two planoconcave lens depth of parallelisms; Make between laser and the resonator cavity and satisfy coupling condition, thereby laser is led to the detection that the absorption spectrum technology is used for photodissociation (photoionization) product more.
Claims (7)
1. a sample cell is characterized in that: comprise photoionization case or photodissociation case, I-shaped flange, I-shaped corrugated tube (5), ring flange A (6), ring flange B (7), fused silica glass (8) and planoconcave lens (9); Said photoionization case or photodissociation case are hollow box body, four sides of casing be respectively equipped be communicated with box cavity and with the circular hole of lateral vertical, wherein any two coaxial to the circular hole on the side; In the casing outside, be connected an I-shaped flange with each circular hole is coaxial respectively, and to be connected two be one group to the I-shaped flange on the side; Wherein the outer end of one group of I-shaped flange is respectively through ring flange A (6) clamping one fused silica glass (8); Another outer end of organizing I-shaped flange respectively connects an I-shaped corrugated tube (5), and two I-shaped corrugated tube (5) outer ends are respectively through ring flange B (7) clamping one planoconcave lens (9); The end face of said photoionization case or photodissociation case is provided with sample holes (14), aspirating hole (15) and pressure tap (16).
2. sample cell according to claim 1 is characterized in that: said photoionization case or photodissociation box top are a cover plate (2); Cover plate is connected with box sealing; Said sample holes (14), aspirating hole (15) and pressure tap (16) are located on the cover plate (2), and communicate with the hollow space of photoionization case or photodissociation case.
3. sample cell according to claim 1 and 2 is characterized in that: said photoionization case or photodissociation case are the stainless steel square, and its hollow space is cylindric.
4. sample cell according to claim 1 and 2 is characterized in that: two ring flange equal intervals of the I-shaped corrugated tube in both sides are distributed with a plurality of positioning threads bars and the combination of a plurality of fine adjustment screw.
5. sample cell according to claim 4 is characterized in that: said positioning threads bar (10) is provided with three, is stainless steel positioning threads bar.
6. sample cell according to claim 4; It is characterized in that: the fine adjustment screw combination (13) on the I-shaped corrugated tube in both sides is equipped with three groups, and every group of fine adjustment screw combination (13) offsets with a fine adjustment screw extension rod and be arranged on the ring flange of I-shaped corrugated tube; Wherein be arranged in the fine adjustment screw extension rod on the I-shaped corrugated tube of casing one side (5), two is stainless steel fine adjustment screw extension rod (11), and one is piezoelectric ceramics fine adjustment screw extension rod (12); The fine adjustment screw extension rod that is positioned on the I-shaped corrugated tube of casing opposite side (5) is stainless steel fine adjustment screw extension rod (11).
7. sample cell according to claim 2; It is characterized in that: between said photoionization case or photodissociation case and cover plate (2), I-shaped flange A (3), the I-shaped flange B (4); Between I-shaped flange A (3) and the ring flange A (6), be equipped with O shape rubber seal between I-shaped corrugated tube (5) and I-shaped flange B (4), the ring flange B (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378567U CN202393699U (en) | 2011-11-08 | 2011-11-08 | Sample pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204378567U CN202393699U (en) | 2011-11-08 | 2011-11-08 | Sample pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393699U true CN202393699U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204378567U Expired - Fee Related CN202393699U (en) | 2011-11-08 | 2011-11-08 | Sample pool |
Country Status (1)
| Country | Link |
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| CN (1) | CN202393699U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808661A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Gas cell for infrared spectroscopy analysis |
| CN103808660A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Gas cell for ultraviolet-visible spectrum analysis |
| CN104458584A (en) * | 2014-12-16 | 2015-03-25 | 苏州谱道光电科技有限公司 | Sample chamber of sample analysis device |
| WO2015124093A1 (en) * | 2014-02-24 | 2015-08-27 | 马要武 | High air-tightness device |
| CN106872401A (en) * | 2017-02-27 | 2017-06-20 | 重庆大学 | A kind of distributed infrared laser multi-parameter gas on-line detecting system |
| CN107831159A (en) * | 2017-12-13 | 2018-03-23 | 中国科学院上海应用物理研究所 | The detection means of metallic element in a kind of aerosol |
-
2011
- 2011-11-08 CN CN2011204378567U patent/CN202393699U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015124093A1 (en) * | 2014-02-24 | 2015-08-27 | 马要武 | High air-tightness device |
| CN103808661A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Gas cell for infrared spectroscopy analysis |
| CN103808660A (en) * | 2014-03-12 | 2014-05-21 | 大连民族学院 | Gas cell for ultraviolet-visible spectrum analysis |
| CN104458584A (en) * | 2014-12-16 | 2015-03-25 | 苏州谱道光电科技有限公司 | Sample chamber of sample analysis device |
| CN106872401A (en) * | 2017-02-27 | 2017-06-20 | 重庆大学 | A kind of distributed infrared laser multi-parameter gas on-line detecting system |
| CN107831159A (en) * | 2017-12-13 | 2018-03-23 | 中国科学院上海应用物理研究所 | The detection means of metallic element in a kind of aerosol |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120822 Termination date: 20131108 |