CN204462002U - The detecting devices of a kind of gas absorption pool device and laser measurement gas concentration - Google Patents
The detecting devices of a kind of gas absorption pool device and laser measurement gas concentration Download PDFInfo
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- CN204462002U CN204462002U CN201520015268.2U CN201520015268U CN204462002U CN 204462002 U CN204462002 U CN 204462002U CN 201520015268 U CN201520015268 U CN 201520015268U CN 204462002 U CN204462002 U CN 204462002U
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- cell body
- absorption cell
- left end
- pool device
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Abstract
The utility model relates to the detecting devices of a kind of gas absorption pool device and laser measurement gas concentration, a kind of gas absorption pool device, comprise absorption cell body, the incidence end of absorption cell body is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, and the left end of prolongation frame is provided with the mount pad for installing corresponding collimating apparatus and laser pickoff.This set makes when absorption cell body is in hot environment, prolongation frame and mount pad can be placed in normal temperature environment, the performance of such collimating apparatus and laser pickoff can not be subject to the impact of temperature, ensure that the accuracy of measurement data, meanwhile, this set structure is simple, is convenient to production and processing, is conducive to the cost reducing processing and manufacturing.
Description
Technical field
The utility model relates to spectroscopy technology field, particularly relates to the detecting devices of a kind of gas absorption pool device and laser measurement gas concentration.
Background technology
The instrument and equipment of existing laser measurement gas concentration comprises collimating apparatus, gas absorption cell and laser pickoff, gas absorption cell comprises absorption cell body, the left end of absorption cell body is provided with incident mirror, this end forms incidence end, the right-hand member of absorption cell body is provided with catoptron, this end forms reflection end, incident mirror is provided with entrance aperture and perforation hole, collimating apparatus and laser pickoff are all arranged on the left end end face of absorption cell body, the left end of absorption cell body is provided with the laser entrance aperture that arrange corresponding to the entrance aperture of incident mirror, the left end of absorption cell body is also provided with the laser emitting hole that arrange corresponding to the perforation hole of catoptron.
In use, laser is by entering in the inner chamber of absorption cell body through the entrance aperture of incident mirror after collimating device collimation, laser penetrates from laser emitting hole after multiple reflections between two eyeglasses, get on laser pickoff, then by laser pickoff, the concentration value that namely analyzing and processing obtains tested gas is carried out to light intensity signal.
When using this kind equipment in high temperature environments, gas absorption cell needs to be placed in hot environment, and due to the easy temperature influence of performance of collimating apparatus and laser pickoff, this just easily causes the inaccurate phenomenon of measurement data to occur.
Summary of the invention
The purpose of this utility model is to provide a kind of gas absorption pool device, with solve in prior art because of collimating apparatus and laser pickoff be all arranged on absorption cell body causes under gas absorption cell is in hot environment time, the performance temperature influence of collimating apparatus, laser pickoff and cause the inaccurate technical matters of measurement data.Meanwhile, the utility model additionally provides a kind of detecting devices using the laser measurement gas concentration of this gas absorption pool device.
For achieving the above object, a kind of gas absorption pool device of the present utility model adopts following technical scheme: a kind of gas absorption pool device, comprise absorption cell body, the incidence end of described absorption cell body is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, and the left end of prolongation frame is provided with the mount pad for installing corresponding collimating apparatus and laser pickoff.
Described absorption cell body comprises the measuring tube that length extends in left-right direction, and the left end of measuring tube is provided with the joint flange coordinated with the left end ferrule of measuring tube.
Described prolongation frame comprises the fixed bar that length extends in left-right direction, and the right-hand member of fixed bar is installed on described joint flange.
Described absorption cell body also comprises the centering alignment bar arranged with one heart to ensure incident mirror and catoptron for the incident mirror and catoptron of installing described absorption cell body that length extends in left-right direction.
Described centering alignment bar is also provided with the adjustment structure of the relative distance of the incident mirror of axial adjustment and catoptron.
The detecting devices of a kind of laser measurement gas concentration of the present utility model adopts following technical scheme: a kind of detecting devices of laser measurement gas concentration, comprise gas absorption pool device, collimating apparatus and laser pickoff, described gas absorption pool device comprises absorption cell body, the incidence end of described absorption cell body is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, the left end extending frame is provided with mount pad, and described collimating apparatus and laser pickoff are arranged on mount pad.
Described absorption cell body comprises the measuring tube that length extends in left-right direction, and the left end of measuring tube is provided with the joint flange coordinated with the left end ferrule of measuring tube.
Described prolongation frame comprises the fixed bar that length extends in left-right direction, and the right-hand member of fixed bar is installed on described joint flange.
Described absorption cell body also comprises the centering alignment bar arranged with one heart to ensure incident mirror and catoptron for the incident mirror and catoptron of installing described absorption cell body that length extends in left-right direction.
Described centering alignment bar is also provided with the adjustment structure of the relative distance of the incident mirror of axial adjustment and catoptron.
The detecting devices of a kind of laser measurement gas concentration of the present utility model comprises gas absorption pool device, gas absorption pool device comprises absorption cell body, the incidence end of absorption cell body is provided with right-hand member and is installed on absorption cell body, the prolongation frame that left end overhangs left, the left end extending frame is provided with mount pad, collimating apparatus and laser pickoff are arranged on mount pad, this set makes when absorption cell body is in hot environment, prolongation frame and mount pad can be placed in normal temperature environment, the performance of such collimating apparatus and laser pickoff can not be subject to the impact of temperature, ensure that the accuracy of measurement data, meanwhile, this set structure is simple, be convenient to production and processing, be conducive to the cost reducing processing and manufacturing.
Further, the centering alignment bar for the incident mirror and catoptron of installing absorption cell body that absorption cell body also comprises that length extends in left-right direction, in hinge structure, incident mirror is installed in the left end of absorption cell body, catoptron is installed in the right-hand member of absorption cell body, in order to ensure that incident mirror and catoptron relative position are in tolerance interval, repeatedly need adjust the installation site of incident mirror and transmitting mirror, and by arranging centering alignment bar, the sniffer of a kind of laser measurement gas concentration of the present utility model just can ensure that incident mirror and catoptron relative position meet request for utilization after installation is complete, this set structure is simple, convenient operation, saving of work and time.
Further, centering alignment bar is also provided with the adjustment structure of the relative distance of the incident mirror of axial adjustment and catoptron, with the requirement of satisfied different field of employment to the relative distance of incident mirror and catoptron, applied widely, easy to utilize.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the detecting devices of laser measurement gas concentration of the present utility model;
Fig. 2 is gas absorption pool device in Fig. 1, the scheme of installation extending frame, collimating apparatus and laser pickoff;
Fig. 3 is the scheme of installation of installing plate and laser pickoff in Fig. 1.
Embodiment
The detecting devices of a kind of laser measurement gas concentration as shown in Figure 1-2, comprise gas absorption pool device, collimating apparatus 8 and laser pickoff 7, gas absorption pool device comprises absorption cell body, absorption cell body comprises incident mirror and catoptron, incident mirror 1 is arranged on the left end of absorption cell body, this end forms incidence end, catoptron 2 is arranged on the right-hand member of absorption cell body, this end forms reflection end, above-mentioned incidence end is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, and the left end extending frame is provided with mount pad.
Above-mentioned absorption cell body comprises the measuring tube that length extends in left-right direction, the left end of measuring tube is provided with joint flange 6, joint flange is arranged on the left end mouth of pipe of measuring tube by packing washer sealing, and above-mentioned incident mirror is installed on joint flange, and the right side of incident mirror is provided with eyeglass trim ring 11.
Above-mentioned prolongation frame comprises the fixed bar 10 that three length extend all in left-right direction, the right-hand member of every root fixed bar is equipped with external thread section, above-mentioned joint flange is provided with three threaded holes laid in 120 ° of circumference, and the right-hand member spiral of fixed bar is arranged in corresponding threaded hole.Above-mentioned mount pad is the platy structure that thickness of slab extends in left-right direction, and mount pad is provided with and three fixed bars threaded hole one to one, and the equal spiral of left end of three fixed bars is arranged on mount pad.Due to three fixed bar uniform force, be conducive to improving strength of joint.Certainly, in other embodiments, the two ends, left and right of above-mentioned fixed bar can also be installed on mount pad, joint flange by the mode correspondence of welding.In other embodiments, above-mentioned Extension support can also be the tubular structure that length extends in left-right direction.
Above-mentioned laser pickoff is arranged on above-mentioned mount pad by installing plate 12, the assembly relation of installing plate and laser pickoff as shown in Figure 3, installing plate is the square plate that thickness of slab extends along the longitudinal direction, the center of installing plate is provided with pre-and post perforative central hole, laser pickoff is installed on after in central hole and is fixedly installed togather by bonding mode and installing plate, the corner of installing plate is provided with the connecting hole for installing bolt, and installing plate is arranged on above-mentioned mount pad by bolt.Certainly, in other embodiments, above-mentioned laser pickoff can also directly be bolted or bonding mode is arranged on mount pad.
Above-mentioned collimating apparatus is arranged on mount pad by bolt.
The left end of above-mentioned measuring tube is also provided with the laser pick-off pipe that length extends in left-right direction, laser pick-off pipe is installed in the left end of measuring tube by the mode of welding, the left end mouth of pipe place of measuring tube is also provided with the dividing plate erect and arrange, dividing plate is provided with the connected entrance with the inner space of measuring tube, above-mentioned joint flange to be arranged on dividing plate by packing washer sealing in case gas through connected entrance to outward leakage, above-mentioned collimating apparatus and laser pickoff load in the inner chamber of laser pick-off pipe.Certainly, in other embodiments, laser pick-off pipe can also be cancelled, directly prolongation frame, collimating apparatus and laser pickoff are placed in normal temperature environment, measuring tube arranges internal thread segment, joint flange arranges external thread section, the external thread section of joint flange twines the left end of establishing sealant tape rear screw to be arranged on measuring tube to realize and being sealed and matched of the left end mouth of pipe of measuring tube.In other embodiments, the right-hand member of laser pick-off pipe is provided with external thread section, and the left end of measuring tube is provided with internal thread segment, and the right-hand member spiral of laser pick-off pipe is arranged on the left end of measuring tube.
Above-mentioned absorption cell body also comprises the centering alignment bar 3 that length extends in left-right direction, and centering alignment bar spiral is arranged on above-mentioned joint flange.The center of incident mirror, catoptron is equipped with central hole, and the left end of centering alignment bar is installed in the central hole of incident mirror, and the right-hand member of centering alignment bar is installed in the central hole of catoptron, after installation incident mirror and catoptron concentric.
Above-mentioned centering alignment bar is also provided with the adjustment structure of the relative distance of the incident mirror of axial adjustment and catoptron, this adjustment structure comprises spiral and is arranged on the set nut of feeling relieved on alignment bar.Set nut is positioned at the right side of catoptron, and the left side of catoptron is provided with camera lens trim ring.Certainly, in other embodiments, above-mentioned adjustment structure can also adopt other axial adjustment structure, as alignment bar of feeling relieved is provided with the groove that length extends in left-right direction, centering alignment bar is arranged with and the alignment bar locating sleeve that coordinates of guiding movement in left-right direction of feeling relieved, locating sleeve is fitted with and can stretches into jackscrew with the press fit of groove top in groove along the radial direction of locating sleeve.
Above-mentioned centering alignment bar adopts solid cylindrical stainless steel bar to make, and by adopting the centering alignment bar of different-diameter to control the deflection of centering alignment bar under different high temperature, to make incident mirror and catoptron relative position in tolerance interval.
The left end of above-mentioned measuring tube is provided with light hole 4 for making incident laser and reflects laser pass through and beam projecting hole 5, dividing plate is provided with exhaust tube, the right-hand member of exhaust tube stretches in the inner chamber of measuring tube, the left end of exhaust tube is connected with aspiration pump, measuring tube is also provided with the air intake opening that supplied gas enters, the right-hand member of measuring tube is also provided with the shutoff end cap preventing Leakage Gas.The detecting devices of above-mentioned a kind of laser measurement gas concentration also comprises laser generator, and laser generator is connected with above-mentioned collimating apparatus by optical fiber 9.
Meanwhile, the utility model additionally provides a kind of gas absorption pool device, and its structure is consistent with the structure of above-mentioned gas absorption pool device, does not repeat them here.
The present embodiment in use, is filled with the tested gas of high temperature in air intake opening, and due to laser pick-off pipe and measuring tube seal isolation, in laser pick-off pipe, temperature is in normal temperature, collimating apparatus and laser pickoff unaffected.Meanwhile, laser generator sends laser, laser penetrates through optical fiber, laser enters in measuring tube through light hole after collimating device collimation, laser penetrates from laser emitting hole after multiple reflections between two eyeglasses, get on laser pickoff, then by laser pickoff, the concentration value that namely analyzing and processing obtains tested gas is carried out to light intensity signal.After detection completes, tested gas is extracted out by aspiration pump.
It is more than preferred embodiment of the present utility model, in other embodiments, above-mentioned joint flange can also be cancelled, absorption cell body comprises the cylindrical body that length extends in left-right direction, above-mentioned prolongation frame is directly installed at the bottom of the left end cylinder of absorption cell body, and the left end of above-mentioned positioning school straight-bar is installed at the bottom of left end cylinder.Those skilled in the art also can in varied situations, and carry out equivalent replacement according to the design general knowledge of this area, it is all within protection domain of the present utility model.
Claims (10)
1. a gas absorption pool device, comprise absorption cell body, it is characterized in that: the incidence end of described absorption cell body is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, the left end of prolongation frame is provided with the mount pad for installing corresponding collimating apparatus and laser pickoff.
2. a kind of gas absorption pool device according to claim 1, is characterized in that: described absorption cell body comprises the measuring tube that length extends in left-right direction, and the left end of measuring tube is provided with the joint flange coordinated with the left end ferrule of measuring tube.
3. a kind of gas absorption pool device according to claim 2, it is characterized in that: described prolongation frame comprises the fixed bar that length extends in left-right direction, the right-hand member of fixed bar is installed on described joint flange.
4. a kind of gas absorption pool device according to any one of claim 1-3, is characterized in that: described absorption cell body also comprises the centering alignment bar arranged with one heart to ensure incident mirror and catoptron for the incident mirror and catoptron of installing described absorption cell body that length extends in left-right direction.
5. a kind of gas absorption pool device according to claim 4, is characterized in that: the adjustment structure described centering alignment bar being also provided with the relative distance of the incident mirror of axial adjustment and catoptron.
6. the detecting devices of a laser measurement gas concentration, comprise gas absorption pool device, collimating apparatus and laser pickoff, described gas absorption pool device comprises absorption cell body, it is characterized in that: the incidence end of described absorption cell body is provided with the prolongation frame that right-hand member is installed on absorption cell body, left end overhangs left, the left end extending frame is provided with mount pad, and described collimating apparatus and laser pickoff are arranged on mount pad.
7. the detecting devices of a kind of laser measurement gas concentration according to claim 6, it is characterized in that: described absorption cell body comprises the measuring tube that length extends in left-right direction, the left end of measuring tube is provided with the joint flange coordinated with the left end ferrule of measuring tube.
8. the detecting devices of a kind of laser measurement gas concentration according to claim 7, it is characterized in that: described prolongation frame comprises the fixed bar that length extends in left-right direction, the right-hand member of fixed bar is installed on described joint flange.
9. the detecting devices of a kind of laser measurement gas concentration according to any one of claim 6-8, is characterized in that: described absorption cell body also comprises the centering alignment bar arranged with one heart to ensure incident mirror and catoptron for the incident mirror and catoptron of installing described absorption cell body that length extends in left-right direction.
10. the detecting devices of a kind of laser measurement gas concentration according to claim 9, is characterized in that: the adjustment structure described centering alignment bar being also provided with the relative distance of the incident mirror of axial adjustment and catoptron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520015268.2U CN204462002U (en) | 2014-12-31 | 2015-01-09 | The detecting devices of a kind of gas absorption pool device and laser measurement gas concentration |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014208651044 | 2014-12-31 | ||
| CN201420865104 | 2014-12-31 | ||
| CN201520015268.2U CN204462002U (en) | 2014-12-31 | 2015-01-09 | The detecting devices of a kind of gas absorption pool device and laser measurement gas concentration |
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| Publication Number | Publication Date |
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| CN204462002U true CN204462002U (en) | 2015-07-08 |
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| CN201520015268.2U Active CN204462002U (en) | 2014-12-31 | 2015-01-09 | The detecting devices of a kind of gas absorption pool device and laser measurement gas concentration |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122471A (en) * | 2019-12-27 | 2020-05-08 | 湖南森尚仪器有限公司 | Laser receiver erection equipment |
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2015
- 2015-01-09 CN CN201520015268.2U patent/CN204462002U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111122471A (en) * | 2019-12-27 | 2020-05-08 | 湖南森尚仪器有限公司 | Laser receiver erection equipment |
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Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Power Polytron Technologies Inc Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: Zhengzhou GL Tech Company |