CN213843018U - Distributed methane monitoring system - Google Patents
Distributed methane monitoring system Download PDFInfo
- Publication number
- CN213843018U CN213843018U CN202022643893.5U CN202022643893U CN213843018U CN 213843018 U CN213843018 U CN 213843018U CN 202022643893 U CN202022643893 U CN 202022643893U CN 213843018 U CN213843018 U CN 213843018U
- Authority
- CN
- China
- Prior art keywords
- conversion
- monitoring system
- absorption cell
- methane monitoring
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model provides a distributing type methane monitoring system, distributing type methane monitoring system includes: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back into the signal of telecommunication, the signal of telecommunication access in the spectral analysis appearance, the absorption cell includes: a coupler; the conversion bin is connected with the coupler through a first flange; the protective cover is fixedly connected with the conversion bin; the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover; the end cover is fixedly connected with the conversion bin, so that the technical effects of good waterproof performance, capability of being used under severe conditions and service life prolonging are achieved.
Description
Technical Field
The utility model relates to a monitoring technology field especially relates to a distributing type methane monitoring system.
Background
Distributed methane monitoring systems now include a laser emitter, an absorption cell, a photodetector, and a spectrum analyzer. The laser light source emits detection laser with a modulation signal through the laser control module, the detection laser enters the absorption cell through the optical fiber, the detection laser is emitted out after being collimated by the collimator of the absorption cell and is shot on the photoelectric detector, the laser is converted into an electric signal, the electric signal is received into the spectrum analyzer to analyze and calculate the spectrum, and finally gas concentration data are obtained, and the data can be output from the spectrum analyzer in different communication modes. The working principle of the distributed methane monitoring system is as follows: according to the beer lambert law, different gas molecules have absorption characteristics for light with different wavelengths, the more the number of the gas molecules is, the stronger the absorption of detection light is, the light signal is weakened accordingly, and the weakening degree and the number of the gas molecules have a stable proportional relation. And converting the optical signals absorbed by the gas molecules into electric signals, and analyzing and calculating by a spectrum analysis circuit to finally obtain the concentration data of the gas.
However, in the process of implementing the technical solution of the present invention, the inventor of the present invention finds that the above prior art has at least the following technical problems:
the distributed methane monitoring system in the prior art has the problems of poor waterproof performance, limited use conditions, difficult use in severe environment and short service life.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a distributing type methane monitoring system has solved among the prior art that distributing type methane monitoring system waterproof performance is not good, and service condition is limited, should not use under especially adverse circumstances, and the technical problem that service life is short has reached waterproof performance good, can use under adverse conditions, prolongs service life's technological effect.
The embodiment of the utility model provides a distributed methane monitoring system, distributed methane monitoring system includes: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back into the signal of telecommunication, the signal of telecommunication access in the spectral analysis appearance, the absorption cell includes:
a coupler;
the conversion bin is connected with the coupler through a first flange;
the protective cover is fixedly connected with the conversion bin;
the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover;
and the end cover is fixedly connected with the conversion bin.
Preferably, the coupler includes:
a collimator;
a coupling tube, the collimator disposed inside the coupling tube;
the collimator pressing plate is provided with a placing groove, the coupling tube is installed in the placing groove, the collimator pressing plate is arranged on the lower portion of the gas blocking cover and fixedly connected with the gas blocking cover, and two ends of the collimator pressing plate are fixedly connected with the conversion bin.
Preferably, two ends of the collimator pressing plate penetrate through the side wall of the conversion bin and are connected through a first flange.
Preferably, the gas blocking cover is a cylinder with two open ends.
Preferably, the circumferential wall of the air blocking cover is provided with air holes.
Preferably, the conversion storehouse is equipped with 2 to the symmetry sets up, 2 be equipped with stud between the conversion storehouse, stud pass through the nut with the conversion storehouse is connected.
Preferably, a switching port is arranged on the outer side wall of the conversion bin, and the switching port is connected with the conversion bin through a second flange.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the utility model provides a pair of distributed methane monitoring system, distributed methane monitoring system includes: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back into the signal of telecommunication, the signal of telecommunication access in the spectral analysis appearance, the absorption cell includes: a coupler; the conversion bin is connected with the coupler through a first flange; the protective cover is fixedly connected with the conversion bin; the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover; the end cover is fixedly connected with the conversion bin and is provided with a protective cover, and the protective cover is fixedly connected with the conversion bin; keep off the gas cover, keep off the gas cover with conversion storehouse fixed connection, be provided with the protection film in keeping off the gas cover, can play waterproof, dust proof, anticorrosion, ventilative etc. effect to can use under adverse circumstances, and anti external pressure is strong, service life is greatly increased also, thereby it is not good to have solved distributed methane monitoring system waterproof performance among the prior art, and service conditions is limited, especially should not use under the adverse circumstances, the short technical problem of service life, reached waterproof performance well, can use under adverse circumstances, the technological effect of increase of service life.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a block diagram of a distributed methane monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a distributed methane monitoring system according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of the absorption cell of FIG. 2;
FIG. 4 is a side view of the absorption cell of FIG. 3;
FIG. 5 is a front view of the absorption cell of FIG. 3;
FIG. 6 is a schematic diagram of the collimator press plate of FIG. 2;
FIG. 7 is a schematic structural view of the gas shield of FIG. 2;
FIG. 8 is a schematic structural view of the coupling tube of FIG. 2;
FIG. 9 is a schematic view of the protective cover of FIG. 3;
FIG. 10 is a schematic structural view of the conversion chamber of FIG. 3;
fig. 11 is a schematic structural view of the end cap of fig. 3.
Description of reference numerals: a laser transmitter 1; an absorption tank 2; a photodetector 3; a spectrum analyzer 4; an optical fiber 5; a coupler 21; a conversion bin 22; a protective cover 23; a gas-blocking cover 24; an end cap 25; a first flange 26; a collimator 211; a coupling tube 212; a collimator press plate 213; a placement groove 2131; an air hole 241; the stud bolts 27; an adapter 28; a second flange 29.
Detailed Description
The embodiment of the utility model provides a distributing type methane monitoring system for it is not good to solve distributing type methane monitoring system waterproof performance among the prior art, and service condition is limited, should not use under especially adverse circumstances, the short technical problem of service life.
The utility model provides a technical scheme overall thought as follows: the distributed methane monitoring system comprises: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back into the signal of telecommunication, the signal of telecommunication access in the spectral analysis appearance, the absorption cell includes: a coupler; the conversion bin is connected with the coupler through a first flange; the protective cover is fixedly connected with the conversion bin; the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover; the end cover is fixedly connected with the conversion bin, so that the technical effects of good waterproof performance, capability of being used under severe conditions and service life prolonging are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
The utility model discloses distributed methane monitoring system of embodiment please refer to fig. 1-5, fig. 7 and fig. 9-11, distributed methane monitoring system includes: the device comprises a laser emitter 1, an absorption cell 2, a photoelectric detector 3 and a spectrum analyzer 4, wherein the laser emitter 1 is connected with the absorption cell 2 through an optical fiber 5, detection laser passing through the absorption cell 2 is input into the photoelectric detector 3, the detection laser passing through the photoelectric detector 3 is converted into an electric signal, the electric signal is accessed into the spectrum analyzer 4,
the absorption tank includes:
a coupler 21;
a conversion bin 22, wherein the conversion bin 22 is connected with the coupler 21 through a first flange 26;
the protective cover 23 is fixedly connected with the conversion bin 22;
the gas shield 24 is fixedly connected with the conversion bin 22, and a protective film is arranged in the gas shield 23;
and the end cover 25 is fixedly connected with the conversion bin 22.
Specifically, as shown in fig. 1-5, according to the circumstances, the laser emitter 1, the photodetector 3 and the spectrum analyzer 4 may be placed in a host, or may be placed separately, the detection laser emitted from the laser emitter 1 is connected to the absorption cell 2 through the optical fiber 5, the detection laser emitted from the laser emitter 1 enters the absorption cell 2 through the optical fiber 5, the detection laser enters the coupler 21 through the conversion bin 22 in the absorption cell 2, the detection laser enters the photodetector 3 after being coupled, the detection laser passing through the photodetector 3 is converted into an electrical signal and finally reaches the spectrum analyzer 4, the spectrum analyzer 4 analyzes and calculates the spectrum to finally obtain the concentration data of the gas, as a preferable mode, the end cap 25 is connected to the conversion bin 22 through a screw, the conversion bins 22 are two, bilateral symmetry sets up, tail optical fiber and some devices etc. can be placed to conversion storehouse 22 inside, conversion storehouse 22 makes the utility model discloses structurally realized embedded, safety cover 23, keep off gas hood 24, the protection film, an enclosure space is constituteed to end cover 25 and conversion storehouse 22, make detection laser not receive external factor's influence when passing through, the protection film is fiber material simultaneously, the pliability is strong, corrosion-resistant, the ventilated membrane that light can not see through, and have waterproof dirt-proof effect, anti external pressure is strong, alkali resistance is strong, the protection level has improved, can use under adverse conditions such as ocean, thereby it is good to have reached waterproof performance, the technological effect of increase of service life.
Further, as shown in fig. 1 to 8, the coupler includes:
a collimator 211;
a coupling tube 212, the collimator 211 being disposed inside the coupling tube 212;
the collimator pressing plate 213 is provided with a placing groove 2131, the coupling tube 212 is installed in the placing groove 2131, the collimator pressing plate 213 is arranged at the lower part of the gas shield 24 and is fixedly connected with the gas shield 24, and two ends of the collimator pressing plate 213 are fixedly connected with the conversion bin 22.
Specifically, as a preferred mode, the collimator pressing plate 213 is connected with the gas blocking cover 24 by screws, two ends of the collimator pressing plate 213 are connected with the conversion bin 22 through the first flange 26, two bilaterally symmetrical collimators 211 are arranged inside the coupling tube 212, and the two collimators 211 are coaxially arranged and are coupled by a pure light source device, so that the high coupling degree of a light path is ensured, the reliability is good, and the detection precision is high. Collimator platen 213 serves to stabilize coupling tube 212 and collimator 211.
Further, two ends of the collimator press plate 213 penetrate through the sidewall of the conversion bin 22 and are connected by the first flange 26.
Specifically, the collimator pressing plate 213 directly penetrates through the side wall of the conversion bin 22 and is connected with the first flange 26, so that the collimator pressing plate 213 is stably connected with the conversion bin 22, as shown in fig. 6, a placing groove 2131 is formed in the collimator pressing plate 213, the coupling tube 212 is installed in the placing groove 2131, and the collimator 211 is arranged inside the coupling tube 212, so that the collimator can be stably fixed, and the coupling precision is further ensured.
Further, as shown in fig. 7, the gas barrier cover 24 is a cylindrical shape with both ends open.
Specifically, the gas barrier 24 is formed in a cylindrical shape with both ends open, the length of the gas barrier 24 is the same as the distance between the two conversion bins 22, and the both ends open is provided to allow the detection laser coming out of the conversion bins to enter the inside of the gas barrier 24 without hindrance.
Further, as shown in fig. 7, the circumferential wall of the air blocking cover 24 is provided with air holes 241.
Specifically, the circumferential wall of the air blocking cover 24 is provided with a plurality of air holes 241, the air holes 241 are arranged for ventilation, and the protective film is arranged inside the air blocking cover 24, because the protective film can ventilate but is opaque, the ventilation and opacity functions are realized.
Further, as shown in fig. 3, there are 2 conversion bins 22, which are symmetrically arranged, and 2 stud bolts 27 are arranged between the conversion bins 22, and the stud bolts 27 are connected to the conversion bins 22 through nuts.
Specifically speaking, stud 27 is equipped with 2, and stud 27 sets up between 2 conversion storehouses 22, and stud 27 passes through the nut to be connected with conversion storehouse 22, and the nut makes stud 27 be connected more firm with conversion storehouse 22 through flat the pad of bullet, and stud 27 can be according to 2 distances between the conversion storehouse 22, adjusts length, and the purpose is to two fender gas covers 24 that convert between the storehouse 22 stabilize.
Further, as shown in fig. 3 and 10, an adapter 28 is disposed on an outer side wall of the conversion bin 22, and the adapter 28 is connected to the conversion bin 22 through a second flange 29.
Specifically, the outer side wall of the conversion bin 22 is provided with an adapter 28, the adapter 28 is used for facilitating the connection and output of optical fibers, and the second flange 29 is used for enabling the adapter 28 to be connected with the conversion bin 22 more stably.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
the embodiment of the utility model provides a pair of distributed methane monitoring system, distributed methane monitoring system includes: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back into the signal of telecommunication, the signal of telecommunication access in the spectral analysis appearance, the absorption cell includes: a coupler; the conversion bin is connected with the coupler through a first flange; the protective cover is fixedly connected with the conversion bin; the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover; the end cover is fixedly connected with the conversion bin and is provided with a protective cover, and the protective cover is fixedly connected with the conversion bin; keep off the gas cover, keep off the gas cover with conversion storehouse fixed connection, be provided with the protection film in keeping off the gas cover, can play waterproof, dust proof, anticorrosion, ventilative etc. effect to can use under adverse circumstances, and anti external pressure is strong, service life is greatly increased also, thereby it is not good to have solved distributed methane monitoring system waterproof performance among the prior art, and service conditions is limited, especially should not use under the adverse circumstances, the short technical problem of service life, reached waterproof performance well, can use under adverse circumstances, the technological effect of increase of service life.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It is apparent that those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. A distributed methane monitoring system, the distributed methane monitoring system comprising: laser emitter, absorption cell, photoelectric detector and spectral analysis appearance, laser emitter pass through optic fibre with the absorption cell is connected, process the detection laser input of absorption cell extremely among the photoelectric detector, process photoelectric detector's detection laser converts the back to the signal of telecommunication, the signal of telecommunication access among the spectral analysis appearance, its characterized in that, the absorption cell includes:
a coupler;
the conversion bin is connected with the coupler through a first flange;
the protective cover is fixedly connected with the conversion bin;
the gas blocking cover is fixedly connected with the conversion bin, and a protective film is arranged in the gas blocking cover;
and the end cover is fixedly connected with the conversion bin.
2. The distributed methane monitoring system of claim 1 wherein the coupler comprises:
a collimator;
a coupling tube, the collimator disposed inside the coupling tube;
the collimator pressing plate is provided with a placing groove, the coupling tube is installed in the placing groove, the collimator pressing plate is arranged on the lower portion of the gas blocking cover and fixedly connected with the gas blocking cover, and two ends of the collimator pressing plate are fixedly connected with the conversion bin.
3. The distributed methane monitoring system of claim 2 wherein both ends of the collimator pressure plate extend through the side walls of the conversion housing and are connected by a first flange.
4. The distributed methane monitoring system of claim 1 wherein the gas block shroud is cylindrical with open ends.
5. The distributed methane monitoring system of claim 4 wherein the gas shield has gas permeable holes in a circumferential wall thereof.
6. The distributed methane monitoring system of claim 1 wherein there are 2 of the conversion bins symmetrically disposed, and wherein studs are disposed between 2 of the conversion bins and connected to the conversion bins by nuts.
7. The distributed methane monitoring system of claim 1 wherein an adapter port is provided on an outer sidewall of the conversion bin, the adapter port being connected to the conversion bin via a second flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022643893.5U CN213843018U (en) | 2020-11-16 | 2020-11-16 | Distributed methane monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022643893.5U CN213843018U (en) | 2020-11-16 | 2020-11-16 | Distributed methane monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213843018U true CN213843018U (en) | 2021-07-30 |
Family
ID=77016664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022643893.5U Active CN213843018U (en) | 2020-11-16 | 2020-11-16 | Distributed methane monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213843018U (en) |
-
2020
- 2020-11-16 CN CN202022643893.5U patent/CN213843018U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4665311A (en) | Smoke detecting apparatus | |
| CN108375555B (en) | Optical fiber methane sensing module, optical fiber multi-point photoelectric methane sensor and system | |
| CN213843018U (en) | Distributed methane monitoring system | |
| CN106644861A (en) | Particulate matter concentration measuring instrument | |
| CN210923470U (en) | Novel vehicle-mounted laser methane telemeter with distance measuring function | |
| CN218271982U (en) | Hand-held laser methane telemeter | |
| CN1834625A (en) | Sensor for visible ozone thickness detector | |
| CN111665173A (en) | Forward scattering type dust concentration measuring instrument | |
| CN205175913U (en) | Explosion -proof type laser gas detector air chamber | |
| CN213843013U (en) | Multi-path laser gas monitoring system | |
| CN212514143U (en) | Forward scattering type dust concentration measuring instrument | |
| CN212159555U (en) | Gas sensor based on NDIR principle | |
| CN213068625U (en) | Infrared test carrier and infrared tester | |
| CN205049474U (en) | On -line monitoring formula absorption -type optic fibre gas sensor air chamber | |
| CN101694526A (en) | Reflection type optical fiber nuclear radiation sensor | |
| CN113075164A (en) | Laser detection type gas detection instrument | |
| CN217654726U (en) | Laser power detection device | |
| CN112881335A (en) | Low-noise optical fiber air chamber and debugging method thereof | |
| CN209802987U (en) | Oxygen detection device and system | |
| CN220323119U (en) | Methane ethane detector based on TDLAS principle | |
| CN213581224U (en) | Photoelectric sensor for discharge detection | |
| CN209134380U (en) | A kind of Photoelectric infrared switch being convenient for installation | |
| CN216053228U (en) | Microwave mobile detector | |
| CN214749768U (en) | Real-time detection device for concentration of chlorine dioxide solution | |
| CN219512045U (en) | Aerosol sensor for cylindrical battery cell |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |