CN210119431U

CN210119431U - Online detection device based on optics

Info

Publication number: CN210119431U
Application number: CN201920680286.0U
Authority: CN
Inventors: 徐勇; 刘世胜; 袁学义
Original assignee: Hefei Gold Star M & E Technical Development Co Ltd
Current assignee: Hefei Gstar Intelligent Control Technical Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-28
Anticipated expiration: 2029-05-10

Abstract

The utility model belongs to the technical field of detection, in particular to an optical-based online detection device, which comprises a light collection component and an analysis component which are arranged in a shell, wherein the shell encloses and forms a first cavity and a second cavity which are mutually isolated, and the isolated wall bodies of the first cavity and the second cavity are provided with light paths for light to be detected to pass through; the light collection assembly is arranged in the first cavity, a light inlet hole is formed in the wall body of the first cavity, which is adjacent to the material to be detected, and a flashboard is arranged at the hole opening of the light inlet hole; the analysis assembly is arranged in the closed chamber II. The utility model discloses set up light collection subassembly and analysis subassembly respectively in two mutually isolated cavities to set up the light path and supply to treat that the photometry gets into complete inclosed cavity one from cavity two, can effectively avoid the influence of dust granule to the testing result, promote detection device's detection efficiency and detection quality in the adverse circumstances of high dust greatly.

Description

Online detection device based on optics

Technical Field

The utility model belongs to the technical field of detect, in particular to on-line measuring device based on optics.

Background

Cement is an important basic raw material in national economy and is widely applied to construction, roads, water conservancy, oceans and national defense engineering. The control of cement quality is an important part in the cement production process, the product quality is directly influenced, and the application of unqualified cement can cause great potential safety hazard to the building engineering. The existing cement quality detection methods include a mature fluorescence analysis method and a new neutron activation method in recent years. The fluorescence analysis method has more than forty years of history in the quality control of cement, but needs to sample to a laboratory for analysis and calculation in the cement production process, belongs to hysteresis analysis, and cannot be regulated and controlled in time; although the neutron activation method belongs to a feed-forward control technology, the potential safety hazard of a radiation source exists, the maintenance period is long, and the maintenance cost is high.

The applicant of the utility model previously filed an application entitled "detection system and control method for raw cement ingredients" (patent number CN107589089A), and provided a method for collecting diffuse reflection light and analyzing and calculating raw cement ingredients after irradiating raw cement with infrared light source, but the production environment of raw cement is severe, dust particles in the air are easily attached to optical components, which affects the collection effect of infrared light; the dust particles entering the optical instrument will seriously affect the analysis result and even cause the damage of the instrument, and how to ensure the detection effect in the dust environment becomes the problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a detection effect's on-line measuring device based on optics in can guaranteeing high dust environment.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an optical-based online detection device comprises a light collection assembly and an analysis assembly which are arranged in a shell, wherein the shell encloses a first cavity and a second cavity which are mutually isolated, and the isolated wall bodies of the first cavity and the second cavity are provided with light passages for light to be detected to pass through; the light collection assembly is installed in the first cavity, a light inlet hole is formed in a wall body of the first cavity, which is adjacent to a material to be detected, a flashboard is arranged at an orifice of the light inlet hole, the flashboard is in sealing fit with the orifice of the light inlet hole when in a closed position, and the orifice of the light inlet hole is opened when the flashboard is in an open position; the analysis assembly is arranged in the closed chamber II.

Compared with the prior art, the utility model discloses there are following technological effect: set up light collection component and analysis subassembly respectively in two isolated cavities each other to set up the light passageway and supply to treat that the photometry gets into complete inclosed cavity one from cavity two, can effectively avoid the influence of dust granule to the testing result, promote detection device detection efficiency and detection quality in the adverse circumstances of high dust greatly.

Drawings

The contents of the description and the references in the drawings are briefly described as follows:

fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic sectional isometric view of the present invention;

fig. 3 is a front view of the main body of the present invention;

FIG. 4 is an isometric view taken at section A-A of FIG. 3;

FIG. 5 is an enlarged schematic view of portion B of FIG. 4;

fig. 6 is a perspective view of a part of the main body of the present invention.

In the figure: 10. the light source module comprises a shell, 11, a first chamber, 111, a light inlet hole, 112, a shutter, 12, a second chamber, 13, a partition plate, 13a, a light passage, 131, a hole, 14, a frame body, 141, an outer frame, 142, a connecting rod, 143, a mounting seat, 20, a light collecting assembly, 21, a detection light source, 22, a light inlet cylinder, 23, a connecting flange, 30, an analysis assembly, 40, a frame, 50, a heat dissipation assembly, 51, a base plate and 52, and a heat dissipation sheet.

Detailed Description

The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.

An optical-based on-line detection device comprises a light collection assembly 20 and an analysis assembly 30 which are installed in a shell 10, wherein the shell 10 encloses a first cavity 11 and a second cavity 12 which are mutually isolated, and the isolated wall bodies of the first cavity 11, the second cavity 12 and the first cavity 11 are provided with light passages 13a for light to be detected to pass through.

The light collection assembly 20 is installed in the first chamber 11, a light inlet hole 111 is formed in a wall body of the first chamber 11, which is adjacent to the conveyor belt A, a gate plate 112 is arranged at an opening of the light inlet hole 111, the gate plate 112 and the opening of the light inlet hole 111 form sealing fit when being in a closed position, and the opening of the light inlet hole 111 is opened when the gate plate 112 is in an open position. Open flashboard 112 just like this and just can on-line measuring, wait to detect and accomplish the back, closed flashboard 112 just can guarantee the airtight of a cavity 11 to in the guarantee avoided a large amount of entering cavity 11 of dust granule, the dust granule attached on the lens that is stained with of significantly reducing reduces the content of dust granule in the optical acquisition route that awaits measuring, thereby promotes light collection quality, guarantee analysis testing result.

The analysis assembly 30 usually comprises a precision instrument, the analysis result is interfered by a high-dust environment, and dust particles enter the instrument and are easily damaged, so that the light path 13a is arranged for sending light to be detected into the second chamber 12 from the first chamber 11, and the analysis assembly 30 is installed in the completely closed second chamber 12, so that the dust particles are prevented from interfering the analysis of the light to be detected, and the safety and high-efficiency work of the analysis instrument is protected. In the embodiment, the analysis module 30 includes a light guide lens set, a spectrometer, a detector, a power supply, and a control panel.

Preferably, the isolation wall of the first, second and

third chambers

11, 12 includes a partition 13 and a frame 14, the frame 14 is fixedly connected to the frame 40, and the partition 13 is fixedly connected to the frame 14. The walls of the first chamber 11 and the second chamber 12 are fixedly connected with the frame 14 or the partition 13. The frame 14 is used as a bearing member and fixedly connected to the frame 40 to ensure stable and reliable installation of the housing 10 and the optical fiber collection assembly 20 and the analysis assembly 30. The partition plate 13 can ensure effective sealing of the first chamber 11 and the second chamber 12, and isolation of the two chambers is realized.

Specifically, light collection assembly 20 passes through

flange

23 and 14 fixed connection of support body, and a light inlet tube 22 is worn to be equipped with in flange 23's inside, is equipped with hole 131 on the plate body of baffle 13, and a light inlet tube 22's barrel, flange 23 and support body 14, light inlet tube 22 and flange 23 constitute sealed cooperation respectively to realize the isolation of cavity one, two 11, 12. The light outlet end of the light inlet tube 22 coincides with the hole 131, which means that the light to be measured can enter the second chamber 12 from the light outlet end of the light inlet tube 22.

In this embodiment, the frame body 14 includes an outer frame 141, the inner side of the outer frame 141 is connected to the mounting base 143 through the connecting rod 142, the partition 13 is fixedly connected to the outer frame 141 and the mounting base 143, and the adjacent surfaces of the two are arranged in a fitting manner to form a surface sealing fit, so as to isolate the first,

second chambers

11, 12. The first chamber 11 is in a funnel shape with a small light inlet side and a large light outlet side, and a wall body of the light outlet side of the first chamber 11 is fixedly connected with an adjacent frame surface of the outer frame 141 to form sealing fit so as to realize the sealing of the first chamber 11. The seat surface of one side of the mounting seat 143 is in sealing fit with the connecting flange 23, and the seat surface of the other side is in sealing fit with the partition plate 13, so that the sealing effect of the first chamber, the second chamber 11 and the first chamber 12 is effectively ensured to be influenced by the mounting of the light collection assembly 20. The body of the light inlet tube 22 passes through the mounting seat 143 and extends from the hole 131 into the inner side of the partition plate 13 to form a light passage 13a.

Light collection assembly 20 still includes and detects light source 21, and the circumference interval arrangement of detecting light source 21 ring income light section of thick bamboo 22 barrel guarantees that detection light source 21 can evenly shine on the determinand surface. The light exit of the detection light source 21 is arranged adjacent to the light entrance hole 111. In the present embodiment, the distance between the light outlet of the detection light source 21 and the light inlet 111 of the housing 10 is smaller than the distance between the light inlet of the light inlet tube 22 and the light inlet 111.

In order to avoid the reliable operation of the analysis assembly 30 in the closed chamber, which is caused by the failure of the analysis assembly 30 to dissipate heat, the second chamber 12 is connected with a cold source.

Preferably, the wall body of the second chamber 12 is provided with heat dissipation holes 121 for mounting the heat dissipation assembly 50, the heat dissipation assembly 50 includes a substrate 51, an edge plate body of the substrate 51 and the wall body of the second chamber 12 form a surface sealing fit, two sides of a middle plate body of the substrate 51 are provided with heat dissipation fins 52, and a fan is arranged at a sheet body of the heat dissipation fins 52 located outside the second chamber 12. In this embodiment, the second chamber 12 is a cube, and a heat dissipation assembly 50 is disposed on each wall of the second chamber 12.

Claims

1. An online detection device based on optics, its characterized in that: the device comprises a light collection assembly (20) and an analysis assembly (30) which are arranged in a shell (10), wherein the shell (10) encloses a first chamber (11) and a second chamber (12) which are mutually isolated, and the isolated wall bodies of the first chamber and the second chamber (11, 12) are provided with light passages (13a) for light to be detected to pass through; the light collection assembly (20) is installed in the first cavity (11), a light inlet hole (111) is formed in the wall body, close to the material to be detected, of the first cavity (11), a gate plate (112) is arranged at the hole opening of the light inlet hole (111), the gate plate (112) is in sealing fit with the hole opening of the light inlet hole (111) when in a closed position, and the hole opening of the light inlet hole (111) is opened when the gate plate (112) is in an opened position; the analysis assembly (30) is mounted within the second, closed chamber (12).

2. The optical-based on-line detection device of claim 1, wherein: the isolation wall bodies of the first chamber and the second chamber (11 and 12) comprise partition plates (13) and frame bodies (14), the frame bodies (14) are fixedly connected to the frame (40), and the partition plates (13) are fixedly connected with the frame bodies (14).

3. The optical-based on-line detection device of claim 2, wherein: the light collection assembly (20) is fixedly connected with the frame body (14) through a connecting flange (23), a light inlet tube (22) penetrates through the connecting flange (23), a hole (131) is formed in the plate body of the partition plate (13), and the light outlet end of the light inlet tube (22) is matched with the hole (131); the cylinder body of the light inlet cylinder (22), the connecting flange (23) and the frame body (14), and the light inlet cylinder (22) and the connecting flange (23) are respectively in sealing fit.

4. The optically-based on-line detection device of claim 3, wherein: the frame body (14) comprises an outer frame (141), the inner side of the outer frame (141) is connected with a mounting seat (143) through a connecting rod (142), a first cavity (11) is in a funnel shape with a small light inlet side and a large light outlet side, a wall body of the light outlet side of the first cavity (11) is fixedly connected with an adjacent frame surface of the outer frame (141) to form sealing fit, a seat surface on one side of the mounting seat (143) is in sealing fit with a connecting flange (23), a seat surface on the other side of the mounting seat is in sealing fit with a partition plate (13), and a barrel body of a light inlet barrel (22) penetrates through the mounting seat (143) and extends into the inner side of the partition plate (13) from a hole (131.

5. The optically-based on-line detection device of claim 4, wherein: the light collection assembly (20) further comprises detection light sources (21), the detection light sources (21) are arranged around the barrel body of the light inlet barrel (22) at intervals in the circumferential direction, and light outlets of the detection light sources (21) are arranged close to the light inlet holes (111).

6. The optical-based on-line detection device of claim 2, wherein: the second chamber (12) is connected with a cold source.

7. The optically-based on-line detection device of claim 6, wherein: and a heat dissipation hole (121) for mounting the heat dissipation assembly (50) is formed in the wall body of the second chamber (12), the heat dissipation assembly (50) comprises a substrate (51), the edge plate body of the substrate (51) is in sealing fit with the wall body of the second chamber (12), heat dissipation fins (52) are arranged on two sides of the middle plate body of the substrate (51), and a fan is arranged at the position of the heat dissipation fin (52) outside the second chamber (12).

8. The optically-based on-line detection device of claim 7, wherein: the analysis component (30) comprises a light guide lens group, a spectrometer, a detector, a power supply and a control panel.