CN201673105U - Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow - Google Patents
Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow Download PDFInfo
- Publication number
- CN201673105U CN201673105U CN201020178656XU CN201020178656U CN201673105U CN 201673105 U CN201673105 U CN 201673105U CN 201020178656X U CN201020178656X U CN 201020178656XU CN 201020178656 U CN201020178656 U CN 201020178656U CN 201673105 U CN201673105 U CN 201673105U
- Authority
- CN
- China
- Prior art keywords
- calibration
- measuring instrument
- measurement instrument
- calibration housing
- protective cover
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a calibration device of a backward-direction light scattering method measurement instrument for the particle-phase concentration of a two-phase flow, which mainly comprises a pressing protection cover (1), a reverse-thread gland (2), a calibration casing (3), a stainless-steel diffuse reflector (4), a coarse-adjustment screw (5) and a fine-adjustment screw (6). The calibration device of the backward-direction light scattering method measurement instrument for the particle-phase concentration of the two-phase flow is characterized in that the pressing protection cover (1) is connected with an air guide flange (71) of a measurement instrument (7) by screw threads; during span calibration and zero calibration, the reverse-thread gland (2) is arranged between the calibration casing (3) and the pressing protection cover (1); and when in a storage state, the calibration casing (3) is reversely inserted into an inner cavity structure (11) of the pressing protection cover (1), is pressed into the measurement instrument (7) from the pressing protection cover (1) and is fixed on the measurement instrument (7) for storage in an integral type state, the measurement instrument (7) works normally, and the aim of the design is achieved.
Description
Technical field
The utility model relates to a kind of calibrating installation of measuring instrument, and especially a kind of backward scattered light that utilizes the rolling particles phase is measured the calibrating installation of the measuring instrument of particle phase concentration.
Background technology
Along with the raising of commercial production and environmental protection requirement, the monitoring of particulate pollutant more and more is subject to people's attention, and all kinds of measuring instruments of the light scattering measurement particle phase concentration of rolling particles phase that utilize have obtained using widely.
The work that the rolling particles phase concentration is measured instrument is that principle is: the laser beam that semiconductor laser sends projects in the particle two-phase flow, the scattered light that particle produced converges at photoelectric sensor by receiving camera lens, the size and the particle concentration of electric signal are proportional, thereby realize the monitoring to particle.
The calibrating installation that utilizes at present the rolling particles phase concentration measuring instrument of light scattering principle both at home and abroad all is to adopt preposition putting into, measuring instrument must take off calibrating installation in measuring process and deposit, simultaneously, the adjustment of the straight calibration point of calibration cartridge and calibration process be comparatively complicated, limited the application that light scattering principle is used to monitor the rolling particles phase concentration again.
Summary of the invention
The purpose of this utility model is a kind of addressing the above problem of development, compact conformation, measuring instrument does not need the calibrating installation taking-up is deposited separately in measuring process, calibrate easy to adjust, deposit with the measuring instrument integral type, the backward scattered light that utilizes the rolling particles phase that the side imports is measured the calibrating installation of the measuring instrument of particle phase concentration.
The utility model is achieved through the following technical solutions:
The utility model mainly by: compress protective cover; the left-hand thread gland; the calibration housing; the stainless steel diffuse reflector; coarse adjustment screw and micrometer adjusting screw are formed; it is characterized in that: compress the air guide flange of protective cover by screw thread and measuring instrument and be connected; during the span calibration; the left-hand thread gland is arranged on the calibration housing and compresses between the protective cover; be connected with the calibration housing by screw thread; the air guide flange cinclides that the calibration housing passes measuring instrument is inserted in its inner chamber; the stainless steel diffuse reflector is fixed in the inner chamber of calibration housing; the coarse adjustment screw passes the bottom that the calibration housing wall withstands on the stainless steel diffuse reflector; micrometer adjusting screw passes the top that the calibration housing wall withstands on the stainless steel diffuse reflector; wherein; compress protection and be covered with inner-cavity structure; the left-hand thread gland is opposite with the hand of spiral that compresses protective cover; assurance compresses protective cover when rotated; the left-hand thread gland can not link, and the calibration housing has incidence window and reflection windows, and incidence window and reflection windows are positioned at the same side of calibration housing.
During the span align mode; the air guide flange of protective cover by screw thread and measuring instrument that compress of the present utility model is connected; by compressing by compressing protective cover after the end face finger setting; the left-hand thread gland is arranged on the calibration housing and compresses between the protective cover; incidence window is facing to the Li Shi hole of measuring instrument; reflection windows converges lens group and sensor facing to measuring instrument; the stainless steel diffuse reflector is regulated the secondary reflection angle of stainless steel diffuse reflector by coarse adjustment screw and micrometer adjusting screw; realization is to being controlled by the share of the luminous energy of reflection windows derivation by the reflection luminous energy of the laser beam that enters incidence window by the Li Shi hole again; and then realize when each calibrating installation is placed into measuring instrument; the luminous energy that has consistent energy is derived by reflection windows, realizes calibration function.
During the zero point correction state, with span align mode comparison Rotate 180 degree, this positioning states incoming laser beam can not enter and converge lens group and sensor, as the zero signal that does not have scattered light when the calibration housing inserted measuring instrument.
During storage configuration, calibration housing reversing is inserted in the inner-cavity structure that compresses protective cover, is pressed into to be fixed on and is the integral type state on the measuring instrument and preserves by compressing protective cover, the measuring instrument operate as normal reaches purpose of design.
The utlity model has following advantage:
1, via enforcement of the present utility model, calibrating installation imports from the side of measuring instrument, and measurement mechanism needn't be dismantled and can calibrate.
2, via enforcement of the present utility model, change the ratio of calibrating installation reflected light share during production on a large scale by the coarse adjustment screw, adjustment at the scene can be carried out meticulous adjustment by micrometer adjusting screw, makes can simply carry out the maintenance of calibrating installation and measuring instrument easily under the complex environment at the scene.
3, via enforcement of the present utility model, calibrating installation and measuring instrument one are preserved, the appearance aliasing of calibrating installation when avoiding many measuring instruments.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of cut-open view of the present utility model.
Fig. 2 is the structural representation of the utility model when the zero point correction state.
Fig. 3 is the structural representation of the utility model when storage configuration.
Among the figure, 1 compress protective cover, 11 inner-cavity structures, 2 left-hand thread glands, 3 calibration housings, 31 incidence windows, 32 reflection windows, 4 stainless steel diffuse reflectors, 5 coarse adjustment screws, 6 micrometer adjusting screws, 7 measuring instruments, 71 gas flanges, lens group, 74 sensors are converged in 72 Li Shi holes, 73
Embodiment
The utility model shown in Fig. 1 to Fig. 3 is mainly by compressing protective cover (1); left-hand thread gland (2); calibration housing (3); stainless steel diffuse reflector (4); coarse adjustment screw (5) and micrometer adjusting screw (6) are formed; it is characterized in that: compress the air guide flange (71) of protective cover (1) by screw thread and measuring instrument (7) and be connected; during the span calibration; left-hand thread gland (2) is arranged on calibration housing (3) and compresses between the protective cover (1); be connected with calibration housing (3) by screw thread; air guide flange (71) cinclides that calibration housing (3) passes measuring instrument (7) is inserted in its inner chamber; stainless steel diffuse reflector (4) is fixed in the inner chamber of calibration housing (3); coarse adjustment screw (5) passes the bottom that calibration housing (3) wall withstands on stainless steel diffuse reflector (4); micrometer adjusting screw (6) passes the top that calibration housing (3) wall withstands on stainless steel diffuse reflector (4); wherein; compress protective cover (1) inner-cavity structure (11) is arranged; left-hand thread gland (2) and the hand of spiral that compresses protective cover (1) are opposite; assurance compresses protective cover (1) when rotated; left-hand thread gland (2) can not link; calibration housing (3) has incidence window (31) and reflection windows (32), and incidence window (31) and reflection windows (32) are positioned at the same side of calibration housing (3).
Fig. 1 also is the structural representation of the utility model when the span align mode, incidence window (31) is facing to the Li Shi hole (72) of measuring instrument (7), reflection windows (32) converges lens group (73) and sensor (74) facing to measuring instrument (7), stainless steel diffuse reflector (4) is regulated the secondary reflection angle of stainless steel diffuse reflector (4) by coarse adjustment screw (5) and micrometer adjusting screw (6), realization is to being controlled by the share of the luminous energy of reflection windows (32) derivation by the reflection luminous energy of the laser beam that enters incidence window (31) by Li Shi hole (72) again, and then realize when each calibrating installation is placed into measuring instrument (7), the luminous energy that has consistent energy is derived by reflection windows (32), realizes calibration function.
In Fig. 2, during the zero point correction state, with span align mode comparison Rotate 180 degree, this positioning states incoming laser beam can not enter and converge lens group (73) and sensor (74), as the zero signal that does not have scattered light when calibration housing (3) inserted measuring instrument (7).
In Fig. 3; during storage configuration, will calibrate housing (3) reversing and be inserted in the inner-cavity structure (11) that compresses protective cover (1), and be pressed into to be fixed on and be the integral type state on the measuring instrument (7) and preserve by compressing protective cover (1); measuring instrument (7) operate as normal reaches purpose of design.
The utility model, compact conformation, measuring instrument do not need calibrating installation taken out in measuring process to be deposited separately, calibrates easy to adjustly, is widely used in the calibrating installation field of rolling particles phase concentration backward scattered light method measuring instrument.
Claims (4)
1. the calibrating installation of a rolling particles phase concentration backward scattered light method measuring instrument; mainly by compressing protective cover (1); left-hand thread gland (2); calibration housing (3); stainless steel diffuse reflector (4); coarse adjustment screw (5) and micrometer adjusting screw (6) are formed; it is characterized in that: compress the air guide flange (71) of protective cover (1) by screw thread and measuring instrument (7) and be connected; left-hand thread gland (2) is arranged on calibration housing (3) and compresses between the protective cover (1); be connected with calibration housing (3) by screw thread; air guide flange (71) cinclides that calibration housing (3) passes measuring instrument (7) is inserted in its inner chamber; stainless steel diffuse reflector (4) is fixed in the inner chamber of calibration housing (3); coarse adjustment screw (5) passes the bottom that calibration housing (3) wall withstands on stainless steel diffuse reflector (4), and micrometer adjusting screw (6) passes the top that calibration housing (3) wall withstands on stainless steel diffuse reflector (4).
2. the calibrating installation of a kind of rolling particles phase concentration backward scattered light method measuring instrument according to claim 1 is characterized in that the described protective cover (1) that compresses has inner-cavity structure (11).
3. the calibrating installation of a kind of rolling particles phase concentration backward scattered light method measuring instrument according to claim 1, the hand of spiral that it is characterized in that described left-hand thread gland (2) and compress protective cover (1) is opposite.
4. the calibrating installation of a kind of rolling particles phase concentration backward scattered light method measuring instrument according to claim 1, it is characterized in that described calibration housing (3) has incidence window (31) and reflection windows (32), incidence window (31) and reflection windows (32) are positioned at the same side of calibration housing (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020178656XU CN201673105U (en) | 2010-04-27 | 2010-04-27 | Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020178656XU CN201673105U (en) | 2010-04-27 | 2010-04-27 | Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673105U true CN201673105U (en) | 2010-12-15 |
Family
ID=43330517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020178656XU Expired - Fee Related CN201673105U (en) | 2010-04-27 | 2010-04-27 | Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673105U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004645A (en) * | 2014-04-21 | 2015-10-28 | 安荣信科技(北京)有限公司 | In-situ knob type calibration apparatus |
| CN105547948A (en) * | 2016-01-27 | 2016-05-04 | 重庆川仪分析仪器有限公司 | Automatic calibration device for dust concentration on-line monitoring |
| CN106525675A (en) * | 2016-10-27 | 2017-03-22 | 合肥福瞳光电科技有限公司 | Online monitoring device of atmospheric particulate matter concentration |
| CN107560983A (en) * | 2016-07-01 | 2018-01-09 | 深圳市量宇科技有限公司 | Light target calibrating installation |
| WO2018025015A1 (en) * | 2016-08-02 | 2018-02-08 | Pcme Limited | Apparatus and method for monitoring particle flow in a stack |
| CN107726963A (en) * | 2017-11-03 | 2018-02-23 | 中船黄埔文冲船舶有限公司 | A kind of existing school instrument of flange |
| CN108375401A (en) * | 2018-03-07 | 2018-08-07 | 中国科学技术大学 | A kind of experiment porch measured for two phase flow void fraction |
-
2010
- 2010-04-27 CN CN201020178656XU patent/CN201673105U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004645A (en) * | 2014-04-21 | 2015-10-28 | 安荣信科技(北京)有限公司 | In-situ knob type calibration apparatus |
| CN105004645B (en) * | 2014-04-21 | 2020-02-11 | 安荣信科技(北京)有限公司 | In-situ knob type calibration device |
| CN105547948A (en) * | 2016-01-27 | 2016-05-04 | 重庆川仪分析仪器有限公司 | Automatic calibration device for dust concentration on-line monitoring |
| CN107560983A (en) * | 2016-07-01 | 2018-01-09 | 深圳市量宇科技有限公司 | Light target calibrating installation |
| WO2018025015A1 (en) * | 2016-08-02 | 2018-02-08 | Pcme Limited | Apparatus and method for monitoring particle flow in a stack |
| US20190195768A1 (en) * | 2016-08-02 | 2019-06-27 | Pcme Limited | Apparatus and method for monitoring particle flow in a stack |
| US11609179B2 (en) * | 2016-08-02 | 2023-03-21 | Envea Uk Ltd | Apparatus and method for monitoring particle flow in a stack |
| CN106525675A (en) * | 2016-10-27 | 2017-03-22 | 合肥福瞳光电科技有限公司 | Online monitoring device of atmospheric particulate matter concentration |
| CN106525675B (en) * | 2016-10-27 | 2019-01-22 | 合肥福瞳光电科技有限公司 | A kind of atmosphere particle concentration on-Line Monitor Device |
| CN107726963A (en) * | 2017-11-03 | 2018-02-23 | 中船黄埔文冲船舶有限公司 | A kind of existing school instrument of flange |
| CN107726963B (en) * | 2017-11-03 | 2024-03-26 | 中船黄埔文冲船舶有限公司 | Flange calibration instrument |
| CN108375401A (en) * | 2018-03-07 | 2018-08-07 | 中国科学技术大学 | A kind of experiment porch measured for two phase flow void fraction |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201673105U (en) | Calibration device of backward-direction light scattering method measurement instrument for particle-phase concentration of two-phase flow | |
| CN110361355B (en) | Spiral gas concentration detection device, manufacturing method thereof and alarm device | |
| CN103454252B (en) | Double light path scattering water quality turbidity measurer | |
| US10739015B2 (en) | Real-time cooking fume concentration monitoring system and range hood applying the same | |
| CN101592601B (en) | High-efficiency infrared gas sensor with small volume | |
| CN215768143U (en) | Smoke instrument device for measuring dust concentration | |
| CN205719925U (en) | A kind of light path adjustable gas absorption cell | |
| WO2022174565A1 (en) | Fan tower barrel inclination monitoring device and method based on optical dispersion | |
| CN105842167A (en) | Optical path adjustable gas-absorbing pool | |
| CN202057596U (en) | Comparison-type reflectivity measuring instrument | |
| CN103217369A (en) | Field lampblack test device | |
| CN104266971A (en) | In-situ calibration device and method for online detection of pipeline gas | |
| EP3865837A1 (en) | Global solar spectrum devices and methods | |
| CN201417244Y (en) | Laser concentration sensor | |
| CN201425571Y (en) | Device for measuring dust concentration | |
| CN104089877B (en) | A kind of wide-range scope turbidimeter | |
| CN104502278A (en) | Gas chamber of optic fiber gas sensor | |
| CN114279964A (en) | Laser methane leakage monitor and methane leakage monitoring method | |
| CN203376234U (en) | Field oil smoke detection equipment | |
| CN109342348A (en) | A kind of binary channels infrared gas sensor | |
| CN105784606A (en) | Optical property based water quality monitoring system | |
| CN201853325U (en) | Combustible gas detection instrument | |
| CN111398114A (en) | Fine particle detection device and method based on light scattering principle | |
| CN208432533U (en) | A kind of non-dispersion infrared gas sensor | |
| CN210376128U (en) | Spiral gas concentration detection device and alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20170427 |