Spectrum acquisition transmission probe device

Abstract

The utility model relates to a spectrum acquisition transmission probe device which comprises a flow cell body, the flow cell body comprises a central fixing seat, the left side of the central fixing seat is connected with an inlet flange through an inlet pipeline, and the right side of the central fixing seat is connected with an outlet flange through an outlet pipeline; two light chamber cylinders are symmetrically mounted at the top and the bottom of the central fixing seat, optical fiber joints, lenses, lens gaskets, lens fixing rings and observation windows are mounted in the light chamber cylinders, window sealing covers corresponding to the observation windows are mounted at the lower ends of the outer walls of the light chamber cylinders, and light path adjusting sheets are clamped between the light chamber cylinders and the outer wall of the flow cell body; cleaning holes corresponding to middle cavities of the two light chamber cylinders are formed in the center of the front face of the center fixing seat, and a cleaning cover plate is mounted at the cleaning holes in the front face of the center fixing seat. According to the utility model, the spectrum acquisition probe is integrally designed, the precision is high, the sealing performance is good, and the field assembly and disassembly are convenient; the observation window is cleaned through the cleaning holes, and convenience and high efficiency are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a spectrum collection transmission probe device. Background Art

[0002] Near-infrared spectroscopy analysis technology is an analytical method that is currently developing rapidly and has a rapidly expanding application field. It has the technical advantages of being non-destructive, rapid, multi-index real-time detection and control, and green and environmentally friendly. It is very suitable for the component analysis of industrial products and is applicable to the detection of various sample states such as solids, liquids, gases, suspensions, pastes, etc.

[0003] The quality of near-infrared instrument detection is based on the premise of ensuring the effective collection of optical signals. The application of online detection technology in industrial production processes requires the effective combination of near-infrared instruments and engineering modifications of on-site detection points to form a complete and reliable online detection system. For materials in different states, suitable sample circulation devices are required. To a certain extent, in the field of online analysis, the degree of adaptation of the circulation device determines the level of detection accuracy that can be achieved, which is also the difficulty of application compared to offline detection.

[0004] For uniform, transparent, and fluid liquid materials, such as gasoline and ethanol, transmission is the most ideal method for collecting near-infrared signals. Transmission flow cell devices based on optical fiber connections are widely used in online detection of materials with such properties. However, the common transmission probes on the market are mostly multi-stage split designs with complex structures, and assembly, disassembly, and on-site cleaning operations are relatively troublesome. Utility Model Content

[0005] The utility model aims to solve the deficiencies of the prior art and provides a spectrum collection transmission probe device.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A spectrum collection transmission probe device comprises a flow cell body, the flow cell body comprises a central fixing seat, the left side of the central fixing seat is connected to an inlet flange through an inlet pipe, and the right side of the central fixing seat is connected to an outlet flange through an outlet pipe;

[0008] Two optical chamber tubes are symmetrically installed at the top and bottom of the central fixing seat. Optical fiber connectors, lenses, lens gaskets, lens fixing rings and observation windows are installed in the optical chamber tubes in sequence from the outside to the inside of the flow cell body. A window sealing cover is installed at the lower end of the outer wall of the optical chamber tube corresponding to the observation window, and an optical path adjustment sheet is sandwiched between the optical chamber tube and the outer wall of the flow cell body.

[0009] A cleaning hole is opened at the center position of the front side of the center fixing seat corresponding to the middle cavities of the two optical chamber tubes, and a cleaning cover plate is installed at the cleaning hole at the front side of the center fixing seat.

[0010] A flow cavity is arranged in the central fixing seat, and mounting holes are arranged at the top and bottom of the central fixing seat corresponding to the optical chamber tube, and the inlet pipe, the outlet pipe and the mounting holes are all communicated with the flow cavity.

[0011] The optical chamber tube includes a cylinder body arranged in a mounting hole, a connecting plate is arranged at the outer end of the cylinder body, the connecting plate is fixed to the outer wall of the central fixing seat by screws, an optical path adjustment plate is clamped between the connecting plate and the outer wall of the central fixing seat, a lens, a lens gasket, a lens fixing ring, and an observation window are installed inside the cylinder body, and a fiber optic connector is installed at the center position of the connecting plate and extends into the cylinder body internally and extends out of the connecting plate externally.

[0012] The beneficial effects of the utility model are as follows: the utility model integrates the design of the spectrum collection probe, and the optical lens and the observation window are encapsulated in the same optical chamber tube. The relative position of the installation is highly accurate, the sealing is good, and the on-site assembly and disassembly are convenient; and a cleaning hole is separately designed, through which the observation window can be cleaned without disassembling the optical fiber connector and the circulation pool body, which is convenient and efficient, and avoids the resetting deviation caused by disassembling the optical fiber connector to the greatest extent, and has a high value of popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional diagram of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 for Figure 2 Sectional view of AA in the middle;

[0016] Figure 4 It is a schematic diagram of the structure of the circulation pool body;

[0017] Figure 5 Schematic diagram of the optical chamber tube after installing the lens assembly;

[0018] Figure 6 It is a structural schematic diagram of the optical chamber tube;

[0019] Figure 7 It is a schematic diagram of the structure of the cleaning cover;

[0020] In the figure: 1-flow cell body; 2-optical chamber tube; 3-optical fiber connector; 4-lens; 5-lens gasket; 6-lens fixing ring; 7-observation window; 8-window sealing cover; 9-optical path adjustment plate; 10-cleaning hole; 11-cleaning cover plate; 12-first sealing ring; 13-second sealing ring; 14-third sealing ring; 15-fourth sealing ring;

[0021] 101-center fixing seat; 102-inlet pipe; 103-inlet flange; 104-outlet pipe; 105-outlet flange; 106-mounting hole;

[0022] 201- cylinder; 202- connecting plate;

[0023] 1101-inner column; 1102-outer cover plate;

[0024] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0029] A spectrum collection transmission probe device comprises a circulation pool body 1, an optical chamber tube 2, an optical fiber joint 3, a lens 4, a lens gasket 5, a lens fixing ring 6, an observation window 7, a window sealing cover 8, an optical path adjustment plate 9, a cleaning hole 10, a cleaning cover plate 11, a first sealing ring 12, a second sealing ring 13, a third sealing ring 14 and a fourth sealing ring 15.

[0030] The flow cell body 1 comprises a central fixing seat 101 , the left side of the central fixing seat 101 is connected to an inlet flange 103 via an inlet pipe 102 , and the right side of the central fixing seat 101 is connected to an outlet flange 105 via an outlet pipe 104 .

[0031] The material flow direction is inlet flange 103, inlet pipe 102, center fixing seat 101, outlet pipe 104, outlet flange 105.

[0032] The inlet flange 103, the inlet pipe 102, the central fixing seat 101, the outlet pipe 104 and the outlet flange 105 are coaxially arranged.

[0033] Two optical chamber tubes 2 are symmetrically mounted on the top and bottom of the central fixing seat 101 .

[0034] A flow cavity is provided in the central fixing seat 101 , and mounting holes 106 are provided at the top and bottom of the central fixing seat 101 corresponding to the optical chamber tube 2 , and the inlet pipe 102 , the outlet pipe 104 , and the mounting holes 106 are all connected to the flow cavity.

[0035] The optical chamber tube 2 includes a tube body 201 disposed in the mounting hole 106 , and a connecting plate 202 is disposed at the outer end of the tube body 201 , and the connecting plate 202 is fixed to the outer wall of the central fixing seat 101 by screws.

[0036] An optical fiber connector 3, a lens 4, a lens gasket 5, a lens fixing ring 6 and an observation window 7 are installed in sequence in the optical chamber tube 2 along the outer side to the inner side of the circulation cell body 1. A window sealing cover 8 is installed at the lower end of the outer wall of the optical chamber tube 2 corresponding to the observation window 7, and an optical path adjustment plate 9 is clamped between the optical chamber tube 2 and the outer wall of the circulation cell body 1.

[0037] Specifically, the optical path adjustment plate 9 is clamped between the connecting disk 202 and the outer wall of the center fixing seat 101, the lens 4, the lens gasket 5, the lens fixing ring 6, and the observation window 7 are installed inside the cylinder 201, and the optical fiber connector 3 is installed at the center position of the connecting disk 202 and extends into the cylinder 201 internally and extends out of the connecting disk 202 externally.

[0038] Optical path adjustment sheets 9 of different thicknesses or quantities are placed on the connection disk 202 and the central fixing seat 101 according to the spectral absorption characteristics of the actual detection sample.

[0039] A first sealing ring 12 is provided between the outer wall of the cylinder 201 and the inner wall of the mounting hole 106 .

[0040] A second sealing ring 13 is provided between the outer wall of the observation window 7 and the inner wall of the cylinder 201 .

[0041] A third sealing ring 14 is provided between the outer wall of the observation window 7 and the window sealing cover 8 .

[0042] A cleaning hole 10 is opened at the center position of the front side of the central fixing seat 101 corresponding to the middle cavities of the two optical chamber tubes 2 , and a cleaning cover plate 11 is installed at the cleaning hole 10 on the front side of the central fixing seat 101 .

[0043] The cleaning cover plate 11 comprises an inner column 1101 arranged in the cleaning hole 10 , an outer cover plate 1102 is arranged at the outer end of the inner column 1101 , and the outer cover plate 1102 is fixed to the outer wall of the central fixing seat 101 by screws.

[0044] A fourth sealing ring 15 is provided between the inner column 1101 and the inner wall of the cleaning hole 10 .

[0045] The utility model integrates the design of the spectrum collection probe, and the optical lens 4 and the observation window 7 are encapsulated in the same optical chamber tube 2. The relative position of the installation is highly accurate, the sealing is good, and the on-site assembly and disassembly are convenient; and a cleaning hole 10 is separately designed, and the observation window 7 can be cleaned through the cleaning hole 10 without disassembling the optical fiber connector 3 and the circulation pool body 1. This is convenient and efficient, and the resetting deviation caused by disassembling the optical fiber connector 3 is avoided to the greatest extent, and the utility model has a high value of popularization and application.

[0046] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A spectral acquisition transmission probe device, characterized in that: The circulation cell body (1) comprises a central fixing seat (101), the left side of the central fixing seat (101) is connected to an inlet flange (103) via an inlet pipe (102), and the right side of the central fixing seat (101) is connected to an outlet flange (105) via an outlet pipe (104); Two optical chamber tubes (2) are symmetrically mounted on the top and bottom of the central fixing seat (101); an optical fiber connector (3), a lens (4), a lens gasket (5), a lens fixing ring (6) and an observation window (7) are sequentially mounted in the optical chamber tube (2) along the outer side of the circulation cell body (1) to the inner side; a window sealing cover (8) is mounted at the lower end of the outer wall of the optical chamber tube (2) corresponding to the observation window (7); and an optical path adjustment sheet (9) is sandwiched between the optical chamber tube (2) and the outer wall of the circulation cell body (1); A cleaning hole (10) is provided at the center position of the front side of the central fixing seat (101) corresponding to the middle cavities of the two optical chamber cylinders (2), and a cleaning cover plate (11) is installed at the cleaning hole (10) on the front side of the central fixing seat (101).

2. A spectrum acquisition transmission probe device according to claim 1, characterized in that: A circulation cavity is provided in the central fixing seat (101), mounting holes (106) are provided at the top and bottom of the central fixing seat (101) corresponding to the optical chamber tube (2), and the inlet pipe (102), the outlet pipe (104) and the mounting holes (106) are all in communication with the circulation cavity.

3. The spectral acquisition transmission probe device according to claim 2, characterized in that: The optical chamber tube (2) comprises a tube body (201) arranged in a mounting hole (106); a connection plate (202) is arranged at the outer end of the tube body (201); the connection plate (202) is fixed to the outer wall of the central fixing seat (101) by screws; an optical path adjustment plate (9) is clamped between the connection plate (202) and the outer wall of the central fixing seat (101); a lens (4), a lens gasket (5), a lens fixing ring (6), and an observation window (7) are installed inside the tube body (201); and an optical fiber connector (3) is installed at the center position of the connection plate (202) and extends into the tube body (201) from the inside and extends out of the connection plate (202) from the outside.

4. The spectrum acquisition transmission probe device according to claim 3, characterized in that: A first sealing ring (12) is provided between the outer wall of the cylinder (201) and the inner wall of the mounting hole (106).

5. The spectral acquisition transmission probe device according to claim 4, characterized in that: A second sealing ring (13) is provided between the outer wall of the observation window (7) and the inner wall of the cylinder (201).

6. The spectrum acquisition transmission probe device according to claim 5, characterized in that: A third sealing ring (14) is provided between the outer wall of the observation window (7) and the window sealing cover (8).

7. The spectrum acquisition transmission probe device according to claim 6, characterized in that: The cleaning cover plate (11) comprises an inner column (1101) arranged in the cleaning hole (10), an outer cover plate (1102) is arranged at the outer end of the inner column (1101), and the outer cover plate (1102) is fixed to the outer wall of the central fixing seat (101) by screws.

8. The spectrum acquisition transmission probe device according to claim 7, characterized in that: A fourth sealing ring (15) is provided between the inner column (1101) and the inner wall of the cleaning hole (10).

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