Flame photometer calibrating device

Abstract

The utility model discloses a flame photometer calibrating device which comprises a combustion reaction box, a detection analysis box and a light path channel, the combustion reaction box and the detection analysis box are connected through the light path channel, a combustor is installed in the combustion reaction box, a photomultiplier tube and a controller are installed in the detection analysis box, the photomultiplier tube is electrically connected with the controller, and the controller is electrically connected with the combustion reaction box. The controller is electrically connected with a control panel, the light path channel is arranged between the burner and the photomultiplier, a light filter is installed in front of the photomultiplier, the light path channel comprises an outer channel and an inner channel, and the outer channel is arranged on the outer side of the inner channel in a sleeving mode. The flame photometer calibrating device optimizes the design of an optical system of a flame photometer detector in high-concentration sample analysis by arranging the optical path channel capable of being lengthened and contracted and changing the length of an optical path, reduces the intensity of an optical signal entering a photomultiplier tube, greatly reduces distortion of a detection signal, and improves the detection accuracy of the flame photometer. The problem of application of the flame photometer calibrating device in high-concentration sample analysis is solved.

Description

Technical Field

[0001] The utility model relates to the field of flame photometry calibration equipment, in particular to a flame photometer calibration device. Background Art

[0002] Flame photometer is an analytical instrument used to detect the content of specific elements (such as sulfur, phosphorus, etc.) in samples. It is widely used in environmental monitoring, food safety, chemical production and other fields. However, flame photometers may be affected by various factors during use, resulting in deviations in measurement results. Therefore, regular verification and calibration of flame photometers is an important measure to ensure their stable performance. The photomultiplier tube in the flame photometer may be saturated in the presence of high-concentration samples, resulting in distortion of the detection signal, which limits the application of flame photometers in the analysis of high-concentration samples.

[0003] The patent document with the Chinese patent announcement number CN214201331U is authorized on September 14, 2021. It discloses a flame photometer, which includes a housing, a nozzle is arranged inside the housing, a flame is formed on the top of the nozzle, a hydrogen inlet is arranged on one side of the housing, an air inlet pipe is arranged at the bottom of the housing, a window is arranged on one side of the housing, a sealing shell is installed on one side of the housing by bolts, a filter is installed inside the sealing shell by bolts, a photomultiplier tube is installed inside the sealing shell by bolts, the nozzle is a stainless steel tube with an outer diameter of 2mm and an inner diameter of 1mm, an igniter is installed on one side of the housing by bolts, an outlet tube is welded on the top of the housing, the output end of the photomultiplier tube is connected to an amplifier through a conductive wire, the output end of the amplifier is connected to a recording system through a conductive wire, and a high-voltage source is arranged on one side of the sealing shell. The utility model doubles the detection repeatability and solves the problem of difficult selection of H2 and air flow rate conditions. The flame photometer has a simple structure, good repeatability and high sensitivity.

[0004] It can be seen from the above application that the optical path length of the existing flame photometer is mostly fixed and cannot be changed. In the analysis of high-concentration samples, in order to optimize the optical system design of the flame photometer, reduce the intensity of the light signal entering the photomultiplier tube, and increase the optical path length, a flame photometer calibration device is proposed. Utility Model Content

[0005] The utility model aims to provide a flame photometer calibration device, which optimizes the optical system design of the flame photometer detector in the analysis of high-concentration samples by setting an optical path channel that can be extended and contracted to change the optical path length, reduces the intensity of the light signal entering the photomultiplier tube, greatly reduces the distortion of the detection signal, and solves the application of the flame photometer calibration device in the analysis of high-concentration samples.

[0006] In order to achieve the above-mentioned purpose, the main technical scheme adopted by the utility model is: a flame photometer calibration device, comprising: a combustion reaction box, a detection and analysis box and an optical path channel, the combustion reaction box and the detection and analysis box are connected through the optical path channel, a burner with a gas supply system is installed in the combustion reaction box, a light cover is installed on the outside of the burner, a photomultiplier tube and a controller are installed in the detection and analysis box, the photomultiplier tube is electrically connected to the controller, a control panel is installed on the top of the detection and analysis box, the controller is electrically connected to the control panel, the optical path channel is between the burner and the photomultiplier tube, a filter is installed between the photomultiplier tube and the optical path channel, the optical path channel includes an outer channel and an inner channel, the outer channel is fixedly connected to the combustion reaction box, the inner channel is connected to the detection and analysis box, and the outer channel is sleeved on the outside of the inner channel.

[0007] Preferably, the inner wall of the outer channel is provided with threads, and an external threaded ring is integrally formed on a side of the inner channel close to the combustion reaction box, and the external threaded ring is threadedly connected to the inner wall of the outer channel.

[0008] Preferably, a limiting ring is integrally formed on the inner wall of the outer channel, and the limiting ring is at one end of the outer channel close to the detection and analysis box.

[0009] Preferably, a shift ring is integrally formed on the outer wall of the inner channel.

[0010] Preferably, the surface of the dial ring is provided with anti-slip grooves.

[0011] Preferably, a ventilation fan is installed on the top of the combustion reaction box.

[0012] Preferably, a plurality of rollers are rotatably connected to the bottom of the combustion reaction box.

[0013] Preferably, the optical filter is a detachable structure, a handle is provided on the top of the optical filter, and a positioning block for limiting the optical filter is fixedly installed inside the detection and analysis box.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The flame photometer calibration device optimizes the optical system design of the flame photometer detector in the analysis of high-concentration samples by setting an optical path channel that can be extended and contracted to change the optical path length, reduces the intensity of the light signal entering the photomultiplier tube, greatly reduces the distortion of the detection signal, and solves the application of the flame photometer calibration device in the analysis of high-concentration samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main view of the flame photometer calibration device of the utility model;

[0017] Figure 2 It is a schematic diagram of the front cross section of the flame photometer calibration device of the utility model;

[0018] Figure 3 for Figure 2 A magnified view of part A;

[0019] Figure 4 It is a three-dimensional schematic diagram of the optical path channel in the flame photometer calibration device of the utility model.

[0020] In the figure: 10, combustion reaction box; 11, burner; 12, light cover; 13, ventilation fan; 14, roller; 20, detection and analysis box; 21, photomultiplier tube; 22, filter; 221, handle; 222, positioning block; 23, controller; 24, control panel; 30, optical path channel; 31, external channel; 311, limit ring; 32, internal channel; 321, external threaded ring; 322, dial ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 The present embodiment provides a flame photometer calibration device, comprising: a combustion reaction box 10, a detection and analysis box 20 and an optical path channel 30. The combustion reaction box 10 and the detection and analysis box 20 are connected via the optical path channel 30. A burner 11 with a gas supply system is installed in the combustion reaction box 10. A light cover 12 is installed on the outside of the burner 11. A ventilation fan 13 is installed on the top of the combustion reaction box 10 to discharge the heat generated by the flame photometer calibration device during operation and maintain the normal working temperature of the device.

[0023] A photomultiplier tube 21 and a controller 23 are installed in the detection and analysis box 20. The photomultiplier tube 21 is electrically connected to the controller 23. A control panel 24 is installed on the top of the detection and analysis box 20. The controller 23 is electrically connected to the control panel 24. The control panel 24 has a touch screen and operation buttons. The optical path 30 is between the burner 11 and the photomultiplier tube 21. A filter 22 is installed between the photomultiplier tube 21 and the optical path 30. The filter 22 is a detachable structure. A handle 221 is provided on the top of the filter 22. A positioning block 222 for limiting the filter is fixedly installed inside the detection and analysis box 20 to facilitate cleaning or replacement of the filter 22.

[0024] The optical path channel 30 includes an outer channel 31 and an inner channel 32. The outer channel 31 is fixedly connected to the combustion reaction box 10, and the inner channel 32 is connected to the detection and analysis box 20. The outer channel 31 is sleeved on the outside of the inner channel 32. The inner wall of the outer channel 31 is provided with a thread. An outer threaded ring 321 is integrally formed on the side of the inner channel 32 close to the combustion reaction box 10. The outer threaded ring 321 is threadedly connected to the inner wall of the outer channel 31. A limit ring 311 is integrally formed on the inner wall of the outer channel 31. The limit ring 311 is at one end of the outer channel 31 close to the detection and analysis box 20. A shifting ring 322 is integrally formed on the outer wall of the inner channel 32. The surface of the shifting ring 322 is provided with anti-slip grooves. The rotation of the inner channel 32 is controlled by the shifting ring 322, and the outer threaded ring 321 drives the outer channel 31 to move, thereby realizing the extension or contraction of the optical path channel 30. Several rollers 14 are rotatably connected to the bottom of the combustion reaction box 10 to facilitate the overall movement of the combustion reaction box 10.

[0025] It is worth noting that the controller 23 in this embodiment can be a single chip microcomputer of model STC89C51.

[0026] Structural principle:

[0027] like Figure 1-Figure 4 As shown, when used in the presence of high-concentration samples, the length of the optical path channel 30 is adjusted, and the inner channel 32 is rotated to extend the outer channel 31 and the inner channel 32 to form a longer optical path channel. The combustion reaction is simulated in the combustion reaction box 10 and energy is released. During the combustion process, the sulfur and phosphorus compounds in the sample are excited to a high-energy state. When the excited sulfur and phosphorus atoms fall back to the ground state, light of a specific wavelength is emitted. The emitted light passes through the optical path channel 30 and the filter 22, is detected by the photomultiplier tube 21 and converted into an electrical signal. The electrical signal is amplified and processed, and the controller 23 converts it into readable data, and controls the touch screen on the control panel 24 to display the sulfur and phosphorus content information in the sample.

[0028] In summary, the flame photometer calibration device, by providing an optical path channel 30 that can be extended and contracted to change the optical path length, optimizes the optical system design of the flame photometer detector in the analysis of high-concentration samples, reduces the intensity of the light signal entering the photomultiplier tube, greatly reduces the distortion of the detection signal, and solves the application of the flame photometer calibration device in the analysis of high-concentration samples.

[0029] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flame photometer calibration device, characterized in that: include: A combustion reaction box (10), a detection and analysis box (20) and an optical path channel (30), wherein the combustion reaction box (10) and the detection and analysis box (20) are connected via the optical path channel (30), a burner (11) with a gas supply system is installed in the combustion reaction box (10), a light cover (12) is installed on the outside of the burner (11), a photomultiplier tube (21) and a controller (23) are installed in the detection and analysis box (20), the photomultiplier tube (21) is electrically connected to the controller (23), and a control panel is installed on the top of the detection and analysis box (20) (24), the controller (23) is electrically connected to the control panel (24), the optical path channel (30) is between the burner (11) and the photomultiplier tube (21), a filter (22) is installed between the photomultiplier tube (21) and the optical path channel (30), the optical path channel (30) comprises an outer channel (31) and an inner channel (32), the outer channel (31) is fixedly connected to the combustion reaction box (10), the inner channel (32) is connected to the detection and analysis box (20), and the outer channel (31) is sleeved on the outer side of the inner channel (32).

2. A flame photometer calibration device according to claim 1, characterized in that: The inner wall of the outer channel (31) is provided with threads, and an outer thread ring (321) is integrally formed on a side of the inner channel (32) close to the combustion reaction box (10), and the outer thread ring (321) is threadedly connected to the inner wall of the outer channel (31).

3. A flame photometer calibration device according to claim 2, characterized in that: A limiting ring (311) is integrally formed on the inner wall of the outer channel (31), and the limiting ring (311) is located at one end of the outer channel (31) close to the detection and analysis box (20).

4. A flame photometer calibration device according to claim 2, characterized in that: A shifting ring (322) is integrally formed on the outer wall of the inner channel (32).

5. A flame photometer calibration device according to claim 4, characterized in that: The surface of the dial ring (322) is provided with anti-slip grooves.

6. A flame photometer calibration device according to claim 1, characterized in that: A ventilation fan (13) is installed on the top of the combustion reaction box (10).

7. A flame photometer calibration device according to claim 6, characterized in that: The bottom of the combustion reaction box (10) is rotatably connected to a plurality of rollers (14).

8. A flame photometer calibration device according to any one of claims 1 to 7, characterized in that: The optical filter (22) is a detachable structure, a handle (221) is provided on the top of the optical filter (22), and a positioning block (222) for limiting the position of the optical filter is fixedly installed inside the detection and analysis box (20).

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