CN204347002U - A kind of gas cell device of gas analyzer - Google Patents
A kind of gas cell device of gas analyzer Download PDFInfo
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- CN204347002U CN204347002U CN201420860070.XU CN201420860070U CN204347002U CN 204347002 U CN204347002 U CN 204347002U CN 201420860070 U CN201420860070 U CN 201420860070U CN 204347002 U CN204347002 U CN 204347002U
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- air chamber
- ring seal
- gas
- transmissive mirror
- cell device
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Abstract
The utility model relates to gas detecting instrument field, particularly relates to a kind of gas cell device of gas analyzer.Comprise air chamber pipe, fixed mount and be located at the transmissive mirror at air chamber pipe two ends respectively, air chamber pipe is located on fixed mount, air chamber tube wall surface thereof is provided with draft tube and gas outlet, the side of transmissive mirror fits tightly on the first O-ring seal, the outer ring of the first O-ring seal fits tightly in the sleeve that bottom surface is through hole, sleeve is connected by screw thread pair with fixed mount, and the sealing plane of the first O-ring seal and the end face of air chamber pipe fit tightly.By draft tube and the gas outlet of tilting, be conducive to the gas of fully discharging two ends in air chamber tube chamber, fully can upgrade gas, transmissive mirror fits tightly on the O-ring seal in sleeve, sleeve is screwed with fixed mount screw thread and is connected, achieve the flexible installation of transmissive mirror and the effective sealing at air chamber two ends, be convenient to replacing and safeguard transmissive mirror and O-ring seal, in addition, air chamber pipe adopts quartz glass material, anticorrosive, visual good, cost is low.
Description
Technical field
The utility model relates to gas detecting instrument field, particularly relates to a kind of gas cell device of gas analyzer.
Background technology
At present, along with the development of green technology, the performance of gas analyzer is mainly reflected in the stability, accuracy and the capability of fast response that detect for Pollutant emission concentration, and the modulation type analytical approach that alternately flows so that its low drift, response time be fast etc., feature occupies advantage gradually in various implementation method, wherein the method for designing of air chamber is again the vital factor that this analytical approach ensures its advantage.
From the prior art, the air chamber that the industry spot pollutant monitoring instrument of main flow adopts is stainless steel air chamber.The utility application of such as 201120023366.2 discloses a kind of stainless steel air chamber, there is some deficiency following in this design: 1, it strengthens air chamber corrosion resistance by carrying out gold-plated method to stainless steel gas chamber interior walls, make technique more complicated, cost is higher; 2, the sealing of its air chamber is pasted by the sealing of eyeglass and is realized, and eyeglass cannot be changed separately, and when pasting, easily pollute eyeglass, affect transmitance; The states such as the pressure of the acquisition gas indoor gas that 3, it can not be real-time and/or temperature, make instrument can not carry out the compensation of temperature and/or pressure to gas concentration; 4, the set-up mode of its draft tube and gas outlet, makes instrument when carrying out ventilation test, can not change clean by gas original in air chamber fast.
Therefore, for above deficiency, the utility model provides a kind of gas cell device of gas analyzer.
Summary of the invention
(1) technical matters that will solve
The gas cell device that the purpose of this utility model is to provide a kind of gas analyzer is insufficient with the exhaust solving existing apparatus existence; Fixing sealing means is not good enough, and glasses lens exchanging safeguards inconvenience; Can not Real-time Obtaining air chamber temperature or pressure intensity parameter, corrosion-prone problem.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of gas cell device of gas analyzer, this device comprises air chamber pipe, fixed mount and be located at the transmissive mirror at described air chamber pipe two ends respectively, described air chamber pipe is located on fixed mount, described air chamber tube wall surface thereof is provided with draft tube and gas outlet, the side of described transmissive mirror fits tightly on the first O-ring seal, the outer ring of described first O-ring seal fits tightly in the sleeve that bottom surface is through hole, described sleeve is connected by screw thread pair with described fixed mount, the sealing plane of described first O-ring seal and the end face of described air chamber pipe fit tightly.
Wherein, described draft tube and gas outlet are arranged near the two ends of described air chamber pipe respectively, and the axis extended line of described draft tube and gas outlet meets at the described transmissive mirror center of corresponding side respectively.
Wherein, described transmissive mirror is biconvex lens or plano-convex lens or diaphragm.
Wherein, also comprise the second O-ring seal, the opposite side of described transmissive mirror fits tightly on described second O-ring seal, and make described transmissive mirror be fitted between described first O-ring seal and the second O-ring seal, the outer ring of described second O-ring seal fits tightly in described sleeve.
Wherein, the equal bevel of inner ring of described first O-ring seal and the second O-ring seal is sinking shape, for placing described transmissive mirror.
Wherein, the two ends of described air chamber pipe are the flange moulding that an external diameter becomes large, and the external diameter of described flange is greater than described air chamber tube wall external diameter, and the end face of described flange is plane.
Wherein, described air chamber tube wall is outer has the 3rd O-ring seal, described 3rd O-ring seal and described fixed mount gluing, sealing near port flange cover, for limiting and cushioning described air chamber pipe play in axis and radial direction.
Wherein, described air chamber tube wall is provided with and manages with the temperature of adopting of described air chamber pipe cavity connects and/or adopt pressure pipe.
Wherein, described first O-ring seal, the second O-ring seal and the 3rd O-ring seal all adopt fluororubber or the silicone rubber O-ring of soft materials.
Wherein, described air chamber pipe is quartz glass material.
(3) beneficial effect
Technique scheme tool of the present utility model has the following advantages: the gas cell device of the gas analyzer that the utility model provides comprises air chamber pipe, fixed mount and be located at the transmissive mirror at described air chamber pipe two ends respectively, described air chamber pipe is located on fixed mount, described air chamber tube wall surface thereof is provided with draft tube and gas outlet, the side of described transmissive mirror fits tightly on the first O-ring seal, the outer ring of described first O-ring seal fits tightly in the sleeve that bottom surface is through hole, described sleeve is connected by screw thread pair with described fixed mount, the sealing plane of described first O-ring seal and the end face of described air chamber pipe fit tightly.By the draft tube that is obliquely installed and gas outlet, the intraluminal gas flow of air chamber is made to lead to most end, can the gas of more effective displacement gas indoor, by arranging the sleeve fixed seal ring that bottom surface is through hole, together with securing transmissive mirror, ensure that the path of light, sleeve is tightened on fixed mount by screw thread pair, be convenient to installing/dismounting, the utility model only need can realize flexible installation and the sealing effectiveness of transmissive mirror by the elastic reaction of O-ring seal self, and do not need to paste, avoid stickup and cause pollution effect light penetration, be convenient to change parts simultaneously, in addition, air chamber pipe is also provided with and adopts temperature pipe and/or adopt pressure pipe, be convenient to monitor correction in real time, improve measuring accuracy, air chamber pipe adopts quartz glass material, corrosion-resistant, visual good, cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of gas analyzer of the utility model.
In figure, 1: air chamber pipe; 2: fixed mount; 3: draft tube; 4: gas outlet; 5: the first O-ring seals; 6: sleeve; 7: transmissive mirror; 8: screw thread pair; 9: the second O-ring seals; 10: adopt temperature pipe; 11: adopt pressure pipe; 12: the three O-ring seals.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
As shown in Figure 1, the gas cell device of a kind of gas analyzer that the utility model provides, it is characterized in that, comprise air chamber pipe 1, fixed mount 2 and be located at the transmissive mirror 7 at air chamber pipe 1 two ends respectively, air chamber pipe 1 arranges on fixed mount 2, air chamber tube wall surface thereof is provided with draft tube 3 and gas outlet 4, transmissive mirror 7 fits tightly in the first O-ring seal 5, the outer ring of the first O-ring seal 5 fits tightly in sleeve 6, two bottom surfaces of sleeve 6 are through hole, guarantee that the path of light is smooth and easy, wherein, the outer wall of sleeve 6 has external thread, correspondingly on fixed mount 2 have internal thread, by this screw thread pair relation, sleeve 6 is tightened on fixed mount 2, the sealing plane of the first O-ring seal 5 and the end face of air chamber pipe 1 fit tightly.By transmissive mirror 7 laminating is pressed on the first O-ring seal 5, relation is fitted tightly again by the first O-ring seal 5 and sleeve 6, the first O-ring seal 5 is made to be placed in sleeve 6 together with transmissive mirror, again sleeve 6 is connected with fixed mount 2, the sealing surface of the first O-ring seal 5 and the end face gluing, sealing of air chamber pipe 1 simultaneously, like this, both ensure that good passage of light, also achieve the flexible installation of transmissive mirror and the sealing effectiveness of air chamber pipe 1 end, draft tube 3 and gas outlet 4 are obliquely installed, be beneficial to and the gas in air chamber pipe 1 is fully changed, improve the real-time of gas to be analyzed.
Wherein, draft tube 3 and gas outlet 4 are arranged near the two ends of air chamber pipe 1 respectively, the axis extended line of draft tube 3 and gas outlet 4 meets at transmissive mirror 7 center of corresponding side respectively, concrete, as shown in Figure 1, the axis extended line of draft tube 3 meets at the center of left end transmissive mirror 7, the axis extended line of gas outlet 4 meets at the center of right-hand member transmissive mirror 7, such gas enters in air chamber tube chamber can arrive at air chamber tube end, the gas of end is discharged, intracavity gas is fully replaced, improve the real-time of gas to be analyzed, in the present embodiment, preferably, draft tube 3 is 30 ° with the pitch angle of gas outlet 4.
Wherein, transmissive mirror 7 adopts biconvex lens or plano-convex lens or diaphragm etc. all can meet the demands.
As shown in Figure 1, also comprise the second O-ring seal 9, the opposite side of transmissive mirror 7 fits tightly on the second O-ring seal 9, wherein, the equal bevel in inner ring place of the first O-ring seal 5 and the second O-ring seal 9 is sinking shape, for placing transmissive mirror 7, transmissive mirror 7 laminating is pressed in the space of two O-ring seals formation, realize the installation of lens, second O-ring seal 9 also plays the effect of protection further, by two O-ring seals are fitted in sleeve 6, then sleeve 6 and fixed mount 2 are screwed by screw thread pair 8 and be connected, transmissive mirror 7 and two O-ring seals are made all to be placed in sleeve 6, screwed by overall screw thread and realize air chamber sealing, the installation being also convenient to transmissive mirror and O-ring seal is changed, in concrete enforcement, can only place the first O-ring seal 5 or place the first O-ring seal 5 and the second O-ring seal 9 simultaneously, as long as transmissive mirror 7 is fitted tightly in O-ring seal, form fixed position, wherein the first O-ring seal 5 can adopt identical O-ring seal with the second O-ring seal 9.
As shown in Figure 1; the two ends of air chamber pipe 1 are the flange moulding that an external diameter becomes large; the external diameter of flange is greater than air chamber tube wall external diameter; the end face of flange is plane; can be formed with O-ring seal 5 and fit tightly; sealing effectiveness is better; simultaneously; on the air chamber pipe 1 of flange inner, cover has the 3rd O-ring seal 12; 3rd O-ring seal 12 outer ring and fixed mount 2 form gluing, sealing, can limit the device for elimination of axial-and radial-play with buffer air chamber pipe 1 like this, can settling position relation; air chamber pipe can be protected again, in order to avoid impaired during vibration.
In addition, air chamber tube wall is also provided with and adopts warm pipe 10 and adopt pressure pipe 11, and, adopt warm pipe 10 and adopt pressure pipe 11 and be communicated with in air chamber pipe 1 chamber, be convenient to adopt gentleness and adopt pressure, and regulate according to real-time parameter and revise, improve measuring accuracy, in concrete enforcement, can arrange flexibly as required and adopt warm pipe 10 and adopt pressure pipe 11, can arrange simultaneously adopt pressure pipe 10 and adopt pressure pipe 11 or only one of them is set.
First O-ring seal 5, second O-ring seal 9 of the present utility model and the 3rd O-ring seal 12 all adopt the O-ring seal of the soft materials such as fluororubber or silicon rubber, it is high temperature resistant, resistance to oxidation, corrosion-resistant, good springiness, good sealing effect.
Air chamber pipe 1 of the present utility model adopts quartz glass material, and it is anticorrosive, and cost is low, is convenient to the chamber inner case observing air chamber pipe, is conducive to cleaning air chamber pipe.
In sum, the gas cell device of a kind of gas analyzer that the utility model provides, be particularly useful for applying in gas alternately flowing modulation type analytical approach, apparatus structure of the present utility model is simple, each main parts size is installed rationally effectively, good sealing effect, movable installation, be beneficial to change and safeguard, the collection of simultaneous temperature and/or pressure, be beneficial to and temperature and/or pressure compensation are carried out to concentration, improve the measuring accuracy of instrument, the tilting of draft tube and gas outlet is installed, gas replacing can better be carried out, improve the scavenging efficiency of air chamber, and adopt the air chamber pipe of quartz glass material, corrosion resistivity is good, be convenient to observe and safeguard.
Below be only preferred implementation of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (10)
1. the gas cell device of a gas analyzer, it is characterized in that, comprise air chamber pipe, fixed mount and be located at the transmissive mirror at described air chamber pipe two ends respectively, described air chamber pipe is located on fixed mount, described air chamber tube wall surface thereof is provided with draft tube and gas outlet, the side of described transmissive mirror fits tightly on the first O-ring seal, the outer ring of described first O-ring seal fits tightly in the sleeve that bottom surface is through hole, described sleeve is connected by screw thread pair with described fixed mount, and the sealing plane of described first O-ring seal and the end face of described air chamber pipe fit tightly.
2. the gas cell device of gas analyzer according to claim 1, it is characterized in that, described draft tube and gas outlet are arranged near the two ends of described air chamber pipe respectively, and the axis extended line of described draft tube and gas outlet meets at the described transmissive mirror center of corresponding side respectively.
3. the gas cell device of gas analyzer according to claim 1, is characterized in that, described transmissive mirror is biconvex lens or plano-convex lens or diaphragm.
4. the gas cell device of gas analyzer according to claim 1, it is characterized in that, also comprise the second O-ring seal, the opposite side of described transmissive mirror fits tightly on described second O-ring seal, make described transmissive mirror be fitted between described first O-ring seal and the second O-ring seal, the outer ring of described second O-ring seal fits tightly in described sleeve.
5. the gas cell device of gas analyzer according to claim 4, is characterized in that, the equal bevel of inner ring of described first O-ring seal and the second O-ring seal is sinking shape, for placing described transmissive mirror.
6. the gas cell device of gas analyzer according to claim 1, is characterized in that, the two ends of described air chamber pipe are the flange moulding that an external diameter becomes large, and the external diameter of described flange is greater than described air chamber tube wall external diameter, and the end face of described flange is plane.
7. the gas cell device of gas analyzer according to claim 6, it is characterized in that, described air chamber tube wall is outer has the 3rd O-ring seal, described 3rd O-ring seal and described fixed mount gluing, sealing near port flange cover, for limiting and cushioning described air chamber pipe play in axis and radial direction.
8. the gas cell device of gas analyzer according to claim 1, is characterized in that, described air chamber tube wall is provided with manages with the temperature of adopting of described air chamber pipe cavity connects and/or adopts pressure pipe.
9. the gas cell device of the gas analyzer according to any one of claim 1-8, is characterized in that, described first O-ring seal, the second O-ring seal and the 3rd O-ring seal all adopt fluororubber or the silicone rubber O-ring of soft materials.
10. the gas cell device of the gas analyzer according to any one of claim 1-8, is characterized in that, described air chamber pipe is quartz glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860070.XU CN204347002U (en) | 2014-12-30 | 2014-12-30 | A kind of gas cell device of gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860070.XU CN204347002U (en) | 2014-12-30 | 2014-12-30 | A kind of gas cell device of gas analyzer |
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| Publication Number | Publication Date |
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| CN204347002U true CN204347002U (en) | 2015-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420860070.XU Active CN204347002U (en) | 2014-12-30 | 2014-12-30 | A kind of gas cell device of gas analyzer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502541A (en) * | 2014-12-30 | 2015-04-08 | 力合科技（湖南）股份有限公司 | Gas chamber device for gas analyzer |
-
2014
- 2014-12-30 CN CN201420860070.XU patent/CN204347002U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502541A (en) * | 2014-12-30 | 2015-04-08 | 力合科技（湖南）股份有限公司 | Gas chamber device for gas analyzer |
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