Thermal insulation flow cell device

Abstract

The utility model relates to a thermal insulation flow cell device which comprises a flow cell and a thermal insulation cylinder which are connected together, a circular mounting hole is formed in the inner side of the end face, facing the thermal insulation cylinder, of the flow cell, a detection sight glass is mounted in the circular mounting hole, and a material channel is formed in the inner side of the end face, back to the thermal insulation cylinder, of the flow cell. The longitudinal section of the material channel is of a kidney-shaped hole structure, a variable-diameter feeding pipeline and a variable-diameter discharging pipeline are arranged on the outer wall of the flow cell, and a flow cell reflection bottom plate and a sight glass cover plate are arranged on the two end faces of the flow cell. The thermal insulation cylinder comprises a partition window installation cylinder and a vacuum thermal insulation cylinder, air holes are symmetrically formed in the outer wall of the vacuum thermal insulation cylinder, air hole plugs are installed on the air holes, a partition window installation base is arranged at the end, close to the vacuum thermal insulation cylinder, of the inner wall of the partition window installation cylinder, and a partition window is installed in the partition window installation base. A partition window cover plate is installed outside the partition window on the side face, back on to the vacuum heat insulation cylinder, of the partition window installation base. The spectrum detection device is high in spectrum detection precision, the replacement efficiency of materials is optimized, and the materials are prevented from being stuck and blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of optical detection, in particular to a temperature-insulated circulation pool 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] When using near-infrared instruments for detection, it is necessary to ensure the effective collection of optical signals. When applying online detection technology in industrial production processes, it is necessary to effectively combine 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 that distinguishes it from offline detection.

[0004] For liquid materials with a certain viscosity, dark color, and large suspended particles, such as concentrated Chinese medicine, milk and other materials, diffuse reflection is the most ideal near-infrared signal collection method. The circulation pool device based on non-contact large spot measurement and diffuse reflection collection is widely used in the online detection of materials with such properties.

[0005] However, most of the large-scale flow cells commonly found on the market are simple symmetrical flow structure designs, which do not take into account the timeliness and uniformity of material replacement, and are not very suitable for testing materials with special characteristics. In the case of high ambient temperature and low material temperature in the pipeline, a large amount of condensed water is easily formed on the detection mirror in a high humidity environment, which will also affect the accuracy of spectral detection. Utility Model Content

[0006] The utility model aims to solve the deficiencies of the prior art and provides a temperature-insulated circulation pool device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0008] A temperature-insulated circulation pool device comprises a circulation pool and a temperature-insulated cylinder connected together, a circular mounting hole is provided on the inner side of the end surface of the circulation pool facing the temperature-insulated cylinder and a detection mirror is installed in the circular mounting hole, a material channel is provided on the inner side of the end surface of the circulation pool facing away from the temperature-insulated cylinder, the longitudinal section of the material channel is a waist-shaped hole structure, a variable-diameter feed pipe and a variable-diameter discharge pipe are provided on the outer wall of the circulation pool, the variable-diameter feed pipe and the variable-diameter discharge pipe are symmetrically arranged on both sides of the arc end of the material channel and are connected to the material channel, a circulation pool reflective bottom plate is installed on the end surface of the circulation pool facing away from the temperature-insulated cylinder, and a mirror cover is installed on the outer side of the detection mirror on the end surface of the circulation pool facing the temperature-insulated cylinder;

[0009] The insulation cylinder includes a window mounting cylinder and a vacuum insulation cylinder. The vacuum insulation cylinder is connected to the circulation pool and the sight glass cover. Air holes are symmetrically arranged on the outer wall of the vacuum insulation cylinder, and air hole plugs are installed on the air holes. A window mounting seat is arranged on the inner wall of the window mounting cylinder close to the vacuum insulation cylinder, a window is installed in the window mounting seat, and a window cover is installed outside the window on the side of the window mounting seat facing away from the vacuum insulation cylinder.

[0010] The variable diameter feed pipe is narrow at the front and wide at the back along the material flow direction, and the variable diameter discharge pipe is wide at the front and narrow at the back along the material flow direction. Connectors are provided at the ends of the variable diameter feed pipe and the variable diameter discharge pipe.

[0011] A first sealing gasket is arranged between the reflective bottom plate of the circulation pool and the end surface of the circulation pool.

[0012] A connecting flange is arranged on the end surface of the vacuum insulation cylinder, and the connecting flange is fixedly connected to the sight glass cover plate and the circulation pool through a plurality of bolts evenly distributed around the circumference.

[0013] The beneficial effects of the utility model are as follows: the utility model combines the design of the circulation pool sight glass component and the thermal insulation component, which solves the problem that a large amount of condensed water is easily formed on the detection sight glass in an environment with high ambient temperature, low material temperature in the pipeline, and high humidity, which will affect the spectral detection. In addition, the special design inside the circulation pool cavity optimizes the material replacement efficiency and avoids the risk of sticking and clogging caused by uneven flow rate of the material in the cavity, which satisfies the requirements of the online near-infrared analyzer for accurate and reliable detection of most liquid materials transported in pipelines to the greatest extent. The structural design is compact, the production is economical and convenient, and it has a high value of promotion and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the circulation pool in one direction;

[0017] Figure 4 This is a schematic diagram of the structure of the flow cell in another direction;

[0018] Figure 5 It is a structural schematic diagram of the thermal insulation cylinder in one direction;

[0019] Figure 6 This is a schematic diagram of the structure of the thermal insulation cylinder in another direction;

[0020] Figure 7 It is a schematic diagram of the structure of the reflection bottom plate of the circulation pool;

[0021] In the figure: 1-circulation pool; 2-insulation cylinder; 3-circular mounting hole; 4-detection mirror; 5-material channel; 6-variable feed pipe; 7-variable discharge pipe; 8-circulation pool reflective bottom plate; 9-mirror cover; 10-partition window; 11-partition window cover; 12-connector; 13-first sealing gasket; 14-second sealing gasket; 15-third sealing gasket; 16-fourth sealing gasket; 17-fifth sealing gasket; 18-sixth sealing gasket;

[0022] 201-window partition installation cylinder; 202-vacuum insulation cylinder; 203-air hole; 204-air hole plug; 205-window partition installation seat; 206-connection flange;

[0023] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION

[0024] 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.

[0025] 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.

[0026] 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.

[0027] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0028] A temperature-insulated flow cell device, such as Figures 1 to 7 As shown, it includes a circulation pool 1, an insulation cylinder 2, a circular mounting hole 3, a detection mirror 4, a material channel 5, a variable diameter feed pipe 6, a variable diameter discharge pipe 7, a circulation pool reflective bottom plate 8, a mirror cover plate 9, a partition window 10, a partition window cover plate 11, a connector 12, a first sealing gasket 13, a second sealing gasket 14, a third sealing gasket 15, a fourth sealing gasket 16, a fifth sealing gasket 17 and a sixth sealing gasket 18.

[0029] A circular mounting hole 3 is provided inwardly on the end surface of the circulation pool 1 facing the insulation cylinder 2, and a detection mirror 4 is installed in the circular mounting hole 3; a material channel 5 is provided inwardly on the end surface of the circulation pool 1 facing away from the insulation cylinder 2, and the longitudinal section of the material channel 5 is a waist-shaped hole structure; a variable-diameter feed pipe 6 and a variable-diameter discharge pipe 7 are provided on the outer wall of the circulation pool 1, and the variable-diameter feed pipe 6 and the variable-diameter discharge pipe 7 are symmetrically arranged on both sides of the arc-shaped end of the material channel 5 and are connected with the material channel 5; a circulation pool reflecting bottom plate 8 is installed on the end surface of the circulation pool 1 facing away from the insulation cylinder 2, and a mirror cover plate 9 is installed on the outside of the detection mirror 4 on the end surface of the circulation pool 1 facing the insulation cylinder 2.

[0030] The variable diameter feed pipe 6 is narrow at the front and wide at the back along the material flow direction, and the variable diameter discharge pipe 7 is wide at the front and narrow at the back along the material flow direction. Connectors 12 are provided at the ends of the variable diameter feed pipe 6 and the variable diameter discharge pipe 7.

[0031] The reflective bottom plate 8 of the circulation pool is detachably mounted on the end surface of the circulation pool 1 by means of a plurality of bolts evenly distributed around the circumference.

[0032] A first sealing gasket 13 is provided between the reflective bottom plate 8 of the circulation pool and the end surface of the circulation pool 1 .

[0033] A second sealing gasket 14 is installed on the side of the detection mirror 4 facing the material channel 5 in the circulation pool 1 , and a waist-shaped hole corresponding to the material channel 5 is opened on the second sealing gasket 14 .

[0034] A third sealing gasket 15 is provided between the detection mirror 4 and the mirror cover plate 9 .

[0035] The insulation cylinder 2 includes a window mounting cylinder 201 and a vacuum insulation cylinder 202. Air holes 203 are symmetrically arranged on the outer wall of the vacuum insulation cylinder 202. Air hole plugs 204 are installed on the air holes 203. A window mounting seat 205 is provided on the inner wall of the window mounting cylinder 201 close to the vacuum insulation cylinder 202. A window 10 is installed in the window mounting seat 205. A window cover 11 is installed outside the window 10 on the side of the window mounting seat 205 facing away from the vacuum insulation cylinder 202. A connecting flange 206 is provided on the end face of the vacuum insulation cylinder 202. The connecting flange 206 is fixedly connected to the sight glass cover 9 and the circulation pool 1 by a number of bolts evenly distributed around the circumference.

[0036] The partition window cover plate 11 is detachably mounted on the end surface of the partition window mounting seat 205 by means of a plurality of bolts evenly distributed around the circumference.

[0037] A fourth sealing gasket 16 is provided between the connecting flange 206 and the mirror cover plate 9 .

[0038] A fifth sealing gasket 17 and a sixth sealing gasket 18 are respectively installed on both sides of the partition window 10 .

[0039] The material enters the material channel 5 of the circulation pool 1 from the variable diameter feed pipe 6 and is discharged from the variable diameter discharge pipe 7. The circulation pool 1 is provided with an asymmetric circular mounting hole 3 and a material channel 5. The detection mirror 4 is installed in the larger circular mounting hole 3 and fixed with the mirror cover plate 9. The reflection bottom plate 8 of the circulation pool is correspondingly installed on one side of the material channel 5. The material channel 5 is a special-shaped hole, i.e., a waist-shaped hole structure. The reflection bottom plate 8 of the circulation pool can select a suitable thickness according to the spectral absorption characteristics of the actual detection sample for the optical path. The connection between the variable diameter feed pipe 6, the variable diameter discharge pipe 7 and the material channel 5 is relatively close to the inner cavity arc surface, which can ensure the replacement efficiency of the material, and at the same time avoid the phenomenon that the material has a fast flow rate in the middle and a slow diffusion flow rate on both sides in the circulation pool 1, and avoid the material on both sides from sticking to the material channel 5 to form agglomerates and block the pipeline. At the same time, in order to adapt to the size of the external pipeline, it is designed as a variable diameter pipeline.

[0040] The material temperature in the circulation pool 1 is about four degrees, and the external ambient temperature is thirty degrees. If the air is humid, condensation will be generated on the surface of the detection mirror 4, affecting the normal spectrum detection. In order to eliminate condensation, it is necessary to control the temperature difference and ambient humidity inside and outside the detection mirror 4, so the insulation cylinder 2 is designed. The insulation cylinder 2 is hollow in design and adopts a double-layer glass cavity structure. The thermal conductivity of air is lower than that of the metal shell, which reduces the temperature difference between the inside and outside of the detection mirror 4. At the same time, a sealed cavity is formed between the partition window 10 in the insulation cylinder 2 and the detection mirror 4. The vacuum insulation cylinder 202 is vacuumed and dried to discharge the internal water vapor to avoid the formation of condensation on the outside of the detection mirror 4. When not vacuumed, it is sealed with an air hole plug 204.

[0041] The utility model combines the design of a circulation pool sight glass component and a thermal insulation component, which solves the problem that a large amount of condensed water is easily formed on the detection sight glass 4 in a high ambient temperature, low material temperature in the pipeline, and high humidity environment, which will affect the spectral detection. In addition, the special design inside the circulation pool 1 cavity optimizes the material replacement efficiency and avoids the risk of sticking and clogging caused by uneven flow rate of the material in the cavity, which satisfies the requirements of the online near-infrared analyzer for accurate and reliable detection of most pipeline-transported liquid materials to the greatest extent. The structure is compact in design, economical and convenient to manufacture, and has a high value of promotion and application.

[0042] 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 temperature-insulated flow cell device, characterized in that: The invention comprises a circulation pool (1) and a heat-insulating cylinder (2) connected together, wherein a circular mounting hole (3) is provided on the inner side of the end surface of the circulation pool (1) facing the heat-insulating cylinder (2), and a detection mirror (4) is installed in the circular mounting hole (3); a material channel (5) is provided on the inner side of the end surface of the circulation pool (1) facing away from the heat-insulating cylinder (2); the longitudinal section of the material channel (5) is a waist-shaped hole structure; a variable-diameter feed pipe (6) and a variable-diameter discharge pipe (7) are provided on the outer wall of the circulation pool (1); the variable-diameter feed pipe (6) and the variable-diameter discharge pipe (7) are symmetrically arranged on both sides of the arc-shaped end of the material channel (5) and are connected to the material channel (5); a circulation pool reflective bottom plate (8) is installed on the end surface of the circulation pool (1) facing away from the heat-insulating cylinder (2); and a mirror cover plate (9) is installed on the outer side of the detection mirror (4) on the end surface of the circulation pool (1) facing the heat-insulating cylinder (2); The thermal insulation cylinder (2) comprises a window installation cylinder (201) and a vacuum thermal insulation cylinder (202); the vacuum thermal insulation cylinder (202) is connected to a circulation pool (1) and a sight glass cover plate (9); air holes (203) are symmetrically arranged on the outer wall of the vacuum thermal insulation cylinder (202); air hole plugs (204) are installed on the air holes (203); a window installation seat (205) is arranged on the inner wall of the window installation cylinder (201) at one end close to the vacuum thermal insulation cylinder (202); a window (10) is installed in the window installation seat (205); and a window cover plate (11) is installed outside the window (10) on the side of the window installation seat (205) facing away from the vacuum thermal insulation cylinder (202).

2. A temperature-insulated flow cell device according to claim 1, characterized in that: The variable diameter feed pipe (6) is narrow at the front and wide at the back along the material flow direction, and the variable diameter discharge pipe (7) is wide at the front and narrow at the back along the material flow direction. Connectors (12) are provided at the ends of the variable diameter feed pipe (6) and the variable diameter discharge pipe (7).

3. A temperature-insulated flow cell device according to claim 2, characterized in that: A first sealing gasket (13) is provided between the reflective bottom plate (8) of the circulation pool and the end surface of the circulation pool (1).

4. A temperature-insulated flow cell device according to claim 3, characterized in that: A second sealing gasket (14) is installed on the side of the detection mirror (4) facing the material channel (5) in the circulation pool (1), and a waist-shaped hole corresponding to the material channel (5) is opened on the second sealing gasket (14).

5. A temperature-insulated flow cell device according to claim 4, characterized in that: A third sealing gasket (15) is provided between the detection mirror (4) and the mirror cover plate (9).

6. A temperature-insulated flow cell device according to claim 5, characterized in that: A connecting flange (206) is provided on the end surface of the vacuum insulation cylinder (202), and the connecting flange (206) is fixedly connected to the sight glass cover plate (9) and the circulation pool (1) through a plurality of bolts evenly distributed around the circumference.

7. A temperature-insulated flow cell device according to claim 6, characterized in that: A fourth sealing gasket (16) is provided between the connecting flange (206) and the mirror cover plate (9).

8. A temperature-insulated flow cell device according to claim 7, characterized in that: A fifth sealing gasket (17) and a sixth sealing gasket (18) are respectively installed on both sides of the partition window (10).

9. A temperature-insulated flow cell device according to claim 8, characterized in that: The reflection bottom plate (8) of the circulation pool is detachably mounted on the end surface of the circulation pool (1) by means of a plurality of bolts evenly distributed around the circumference.

10. The temperature-insulated flow cell device according to claim 9, characterized in that: The partition window cover plate (11) is detachably mounted on the end surface of the partition window mounting seat (205) by means of a plurality of bolts evenly distributed around the circumference.

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