Atomic absorption spectrometer based on food environment monitoring

Abstract

The utility model discloses an atomic absorption spectrometer based on food environment monitoring, and particularly relates to the technical field of atomic absorption spectrometers, the atomic absorption spectrometer comprises an instrument body and a vent hole arranged at the end part of the instrument body, the outer side of the instrument body is provided with a dust removal and dehumidification assembly, the tail end of the instrument body is provided with a wind direction rudder, and the wind direction rudder is provided with a fan. A base is installed at the bottom of the instrument body, and the instrument body is rotationally connected with the base. The beneficial effects of the utility model are that: have very good dedusting and dehumidification effect, can effectively avoid the ventilation hole clogging, under the action of wind power, the wind direction rudder and the wind direction form a certain angle, under the action of wind power, the instrument body begins to rotate relative to the base to make the ventilation hole align to the wind direction again, can capture and monitor the particles in the environment.

Description

Technical Field

[0001] The utility model relates to an atomic absorption spectrometer for food environment monitoring, in particular to an atomic absorption spectrometer for food environment monitoring, and belongs to the technical field of atomic absorption spectrometers. Background Art

[0002] Atomic absorption spectrometer can measure a variety of elements. The instrument radiates light with characteristic spectral lines of the elements to be measured from the light source, which is absorbed by the ground state atoms of the elements to be measured in the vapor when passing through the sample vapor. The existing technology is not convenient for heat dissipation of the equipment, which affects the accuracy of the equipment's detection data. The problems with the existing technology are: the existing equipment has poor heat dissipation effect, resulting in a high temperature inside the equipment, which easily affects the accuracy of the equipment's detection data. Some existing equipment has poor dustproof effect, which easily causes damage to the equipment, reduces the practicability of the equipment, and reduces the service life of the equipment.

[0003] The existing patent is based on an atomic absorption spectrometer for food environment monitoring, and the patent authorization number is CN 215833245U. By setting a main body, ventilation holes, cooling pipes and contact grooves, the heat conduction plate can conduct the heat generated in the main body to the cooling rack, and the coolant in the cooling pipe can circulate to dissipate the heat of the main body, thereby solving the problem that the heat dissipation effect of existing equipment is poor, resulting in a high temperature inside the equipment, which easily affects the accuracy of the equipment's detection data, and some existing equipment has poor dustproof effect, which easily causes damage to the equipment, reduces the practicability of the equipment, and reduces the service life of the equipment.

[0004] However, the ventilation holes in the patent authorization number CN 215833245 U are used to process dust entering the instrument. When the amount of dust is large, it is easy to block the ventilation holes, which makes it impossible to detect the food environment. In addition, the ventilation holes of the instrument cannot change their position according to the direction of gas flow, and it is not easy to capture and monitor particles in the environment. For this reason, we propose an atomic absorption spectrometer for food environment monitoring. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes an atomic absorption spectrometer for food environment monitoring.

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

[0007] An atomic absorption spectrometer for food environment monitoring is designed, comprising an instrument body and a ventilation hole opened at the end of the instrument body, and a dust removal and dehumidification component is installed on the outer side of the instrument body;

[0008] The dust removal and dehumidification assembly includes a cover shell installed on the outside of the instrument body and corresponding to the ventilation hole, an air inlet opened at the root of the surface of the cover shell away from the instrument body, a first partition plate and a second partition plate fixedly connected to the inside of the cover shell and staggered, a guide block fixedly connected to the root of the first partition plate and corresponding to the air inlet, a bottom cover detachably connected to the bottom of the cover shell, a storage box installed on the surface of the second partition plate close to the ventilation hole, a through hole opened at the bottom of the storage box, a drying cotton laid on the bottom wall of the inner cavity of the storage box, and a desiccant laid on the upper surface of the drying cotton;

[0009] A wind vane is installed at the end of the instrument body;

[0010] A base is installed at the bottom of the instrument body, and the instrument body is rotatably connected to the base.

[0011] Preferably, an S-shaped air duct is provided between the first partition plate and the second partition plate.

[0012] Preferably, the outer wall of the storage box is compositely bonded with a sealing strip that abuts against the outer wall of the instrument body.

[0013] Preferably, the open edge of the cover shell is inlaid with a sealing rubber ring that abuts against the outer wall of the instrument body.

[0014] Preferably, both side walls of the housing are fixedly connected with mounting ears, and the mounting ears are connected to the instrument body via bolts.

[0015] Preferably, a shaft head is fixedly connected to the bottom of the instrument body, and a bearing which is interference-connected with the shaft head is installed at the base.

[0016] The utility model proposes an atomic absorption spectrometer for food environment monitoring, which has the following beneficial effects:

[0017] 1. The airflow enters the inner side of the cover through the air inlet, and flows inside the S-shaped air duct formed between the first partition and the second partition. A part of the sand and dust in the airflow is blocked by the first partition and discharged from the air inlet by the guide block, which can effectively prevent the ventilation holes from being blocked. After the airflow enters the inner side of the storage box through the through hole, the water vapor in the airflow is adsorbed by the drying cotton and the desiccant. Finally, the airflow enters the interior of the instrument body through the ventilation holes to detect the ground state atoms of the elements. It has a good dust removal and dehumidification effect, which can effectively avoid the blockage of the ventilation holes.

[0018] 2. Under the action of wind force, the weather vane forms a certain angle with the wind direction. Under the action of wind force, the instrument body starts to rotate relative to the base, so that the ventilation holes are aligned with the wind direction again, and the particles in the environment can be captured and monitored. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an atomic absorption spectrometer for food environment monitoring proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the bottom structure of an instrument body of an atomic absorption spectrometer for food environment monitoring proposed by the utility model;

[0021] Figure 3 This is a front view schematic diagram of a cover of an atomic absorption spectrometer for food environment monitoring proposed by the utility model;

[0022] Figure 4 This is a schematic cross-sectional view of the cover AA portion of an atomic absorption spectrometer for food environment monitoring proposed by the utility model;

[0023] Figure 5 This is a schematic diagram of the external structure of a dust removal and dehumidification component based on an atomic absorption spectrometer for food environment monitoring proposed by the utility model;

[0024] Figure 6 This is a schematic diagram of the base structure of an atomic absorption spectrometer for food environment monitoring proposed in the utility model.

[0025] In the figure: 1. Instrument body; 2. Ventilation hole; 3. Cover; 4. Air inlet; 5. First partition; 6. Second partition; 7. Guide block; 8. Bottom cover; 9. Storage box; 10. Dry cotton; 11. Desiccant; 12. Through hole; 13. Sealing strip; 14. Sealing rubber ring; 15. Mounting ear; 16. Wind vane; 17. Base; 18. Shaft head. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-6 , an atomic absorption spectrometer for food environment monitoring, comprising an instrument body 1 and a ventilation hole 2 opened at the end of the instrument body 1, and a dust removal and dehumidification component is installed on the outer side of the instrument body 1;

[0028] The dust removal and dehumidification assembly includes a cover 3 installed on the outside of the instrument body 1 and corresponding to the ventilation hole 2, an air inlet 4 opened at the root of the surface of the cover 3 away from the instrument body 1, a first partition 5 and a second partition 6 fixedly connected to the inside of the cover 3 and staggered, a guide block 7 fixedly connected to the root of the first partition 5 and corresponding to the air inlet 4, a bottom cover 8 detachably connected to the bottom of the cover 3, a storage box 9 installed on the surface of the second partition 6 close to the ventilation hole 2, a through hole 12 opened at the bottom of the storage box 9, a drying cotton 10 laid on the bottom wall of the inner cavity of the storage box 9, and a desiccant 11 laid on the upper surface of the drying cotton 10;

[0029] A wind vane 16 is installed at the end of the instrument body 1;

[0030] A base 17 is installed at the bottom of the instrument body 1, and the instrument body 1 is rotatably connected to the base 17;

[0031] It should be noted that when the atomic absorption spectrometer for food environment monitoring is used, the base 17 is installed and fixed in a designated outdoor area for food environment monitoring. Under the action of wind force, the wind vane 16 forms a certain angle with the wind direction. Under the action of wind force, the instrument body 1 starts to rotate relative to the base 17, so that the ventilation hole 2 is aligned with the wind direction again, and the particles in the environment can be captured and monitored. The airflow enters the inner side of the cover 3 through the air inlet 4, and flows through the inner side of the S-shaped air duct formed between the first partition 5 and the second partition 6. A part of the sand and dust in the airflow is blocked by the first partition 5 and discharged from the air inlet 4 by the guide block 7, which can effectively prevent the ventilation hole 2 from being blocked. After the airflow enters the inner side of the storage box 9 through the through hole 12, the water vapor in the airflow is adsorbed by the drying cotton 10 and the desiccant 11. Finally, the airflow enters the interior of the instrument body 1 through the ventilation hole 2 to detect the ground state atoms of the elements, which has a good dust removal and dehumidification effect, and can effectively avoid the blockage of the ventilation hole 2. By removing the bottom cover 8, the dust accumulated on the inner side of the cover 3 can be cleaned.

[0032] like Figure 4 As shown, an S-shaped air duct is provided between the first partition plate 5 and the second partition plate 6;

[0033] It should be noted that, as the airflow flows inside the S-shaped air duct formed between the first partition 5 and the second partition 6, a portion of the sand and dust in the airflow passes through the obstruction of the first partition 5 and is discharged from the air inlet 4 using the guide block 7, which can effectively prevent the ventilation hole 2 from being blocked.

[0034] like Figure 1 , Figure 5 As shown, the outer wall of the storage box 9 is compositely bonded with a sealing strip 13 that abuts against the outer wall of the instrument body 1, and the open edge of the cover shell 3 is inlaid with a sealing rubber ring 14 that abuts against the outer wall of the instrument body 1;

[0035] It should be noted that the gap between the storage box 9 and the instrument body 1 is filled with the sealing strip 13, and the gap between the cover shell 3 and the instrument body 1 is filled with the sealing rubber ring 14, so as to effectively prevent dust from penetrating into the inner side of the cover shell 3.

[0036] like Figure 1 As shown, both side walls of the housing 3 are fixedly connected with mounting ears 15, and the mounting ears 15 are connected to the instrument body 1 by bolts;

[0037] It should be noted that the installation ears 15 are provided to facilitate the installation and fixing of the cover 3 on the outer side of the instrument body 1 .

[0038] like Figure 2 , Figure 6 As shown, a shaft head 18 is fixedly connected to the bottom of the instrument body 1, and a bearing which is interference-connected with the shaft head 18 is installed at the base 17;

[0039] It should be noted that the friction between the shaft head 18 and the base 17 is reduced, and the rotation accuracy of the instrument body 1 is guaranteed.

[0040] Working principle: When in use, by installing and fixing the base 17 in a designated outdoor area for food environment monitoring, the wind vane 16 forms a certain angle with the wind direction under the action of wind force, and the instrument body 1 starts to rotate relative to the base 17 under the action of wind force, so that the ventilation hole 2 is aligned with the wind direction again, and the particles in the environment can be captured and monitored. The airflow enters the inner side of the cover shell 3 through the air inlet 4, and flows through the inner side of the S-shaped air duct formed between the first partition plate 5 and the second partition plate 6. A part of the sand and dust in the airflow is blocked by the first partition plate 5 and discharged from the air inlet 4 by the guide block 7. After the airflow enters the inner side of the storage box 9 through the through hole 12, the water vapor in the airflow is adsorbed by the drying cotton 10 and the desiccant 11. Finally, the airflow enters the interior of the instrument body 1 through the ventilation hole 2 to detect the ground state atoms of the elements. It has a good dust removal and dehumidification effect, which can effectively avoid the blockage of the ventilation hole 2. By removing the bottom cover 8, the dust accumulated on the inner side of the cover shell 3 can be cleaned.

[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An atomic absorption spectrometer for food environment monitoring, comprising an instrument body (1) and a ventilation hole (2) provided at the end of the instrument body (1), It is characterized in that A dust removal and dehumidification component is installed on the outer side of the instrument body (1); The dust removal and dehumidification assembly comprises a cover (3) installed on the outside of the instrument body (1) and corresponding to the ventilation hole (2), an air inlet (4) provided at the root of the surface of the cover (3) away from the instrument body (1), a first partition (5) and a second partition (6) fixedly connected to the inside of the cover (3) and arranged alternately, a guide block (7) fixedly connected to the root of the first partition (5) and corresponding to the air inlet (4), a bottom cover (8) detachably connected to the bottom of the cover (3), a storage box (9) installed on the surface of the second partition (6) close to the ventilation hole (2), a through hole (12) provided at the bottom of the storage box (9), a drying cotton (10) laid on the bottom wall of the inner cavity of the storage box (9), and a desiccant (11) laid on the upper surface of the drying cotton (10); A wind vane (16) is installed at the end of the instrument body (1); A base (17) is installed at the bottom of the instrument body (1), and the instrument body (1) is rotatably connected to the base (17).

2. The atomic absorption spectrometer for food environment monitoring according to claim 1, It is characterized in that An S-shaped air duct is provided between the first partition plate (5) and the second partition plate (6).

3. The atomic absorption spectrometer for food environment monitoring according to claim 1, It is characterized in that The outer wall of the storage box (9) is compositely bonded with a sealing strip (13) that abuts against the outer wall of the instrument body (1).

4. The atomic absorption spectrometer for food environment monitoring according to claim 1, It is characterized in that The open edge of the cover shell (3) is inlaid with a sealing rubber ring (14) that abuts against the outer wall of the instrument body (1).

5. The atomic absorption spectrometer for food environment monitoring according to claim 1, It is characterized in that Both side walls of the cover shell (3) are fixedly connected with mounting ears (15), and the mounting ears (15) are connected to the instrument body (1) via bolts.

6. The atomic absorption spectrometer for food environment monitoring according to claim 1, It is characterized in that A shaft head (18) is fixedly connected to the bottom of the instrument body (1), and a bearing which is interference-connected with the shaft head (18) is installed at the base (17).

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