CN215415017U - Automatic water seal arrangement of spectrum appearance - Google Patents

Abstract

The utility model discloses an automatic water seal device of a spectrometer, which structurally comprises a main body, a burner and an atomizing chamber, wherein the burner is arranged at the upper end of the main body, the atomizing chamber is positioned in the main body, and the atomizing chamber comprises a water seal, a magnetic floater, a sensor, a waste liquid nozzle and a waste liquid discharge pipe; the water seal failure caused by the pressure increase in the atomizing cavity caused by human errors or various reasons in the prior art is also reduced, and the safety of operators is further ensured.

Description

Automatic water seal arrangement of spectrum appearance

Technical Field

The utility model relates to the field of atomic absorption spectrometers, in particular to an automatic water seal device of a spectrometer.

Background

An atomic absorption spectrometer is a widely used spectrum analysis instrument, when a flame atomic absorption is used for sample analysis, air-acetylene flame is needed, in view of the principle of flame atomic absorption and the structure of an atomizing cavity, air and acetylene are ignited at a burner seam after entering a premixing chamber, a waste liquid outlet is reserved in the atomizing cavity, once acetylene gas flows out of the waste liquid outlet, the flow rate of acetylene is lower than the combustion speed, so that the instrument is tempered, explosion is generated in serious cases, and harm is brought to operators.

The method for preventing acetylene from flowing out of a waste liquid port comprises the following steps that firstly, a rotary bend is arranged on a waste liquid discharging pipe, before the device is used, the waste liquid pipe, namely a return bend, is filled with water, and sealing is realized by the water in the return bend; secondly, a U-shaped pipe is utilized to play a water sealing role, and the principle is similar to that of the previous mode; and thirdly, the waste liquid pipe is directly inserted below the liquid level of the waste liquid bottle, and the waste liquid in the waste liquid bottle is used for realizing sealing. Although these methods can function as a seal, they have the following disadvantages:

the sealing effect of the first two modes is related to the size of the convolution and the U-shaped pipe, namely the water storage amount in the U-shaped pipe, when the water storage amount is small, once the air flow is too large, the air pressure in the premixing chamber is easily too large, the water in the water seal is drained by the air flow, and acetylene is leaked to cause tempering; the sample often contains a large amount of salt, and when a seam of the burner is blocked by the salt, the gas pressure in the premixing chamber (the atomizing chamber) is increased, so that water in the water seal is passively discharged, and the tempering is generated because the water seal effect is not realized; when too much waste liquid is in the waste liquid barrel, the tail end of the waste discharge pipe is inevitably immersed below the liquid level, so that secondary sealing is formed, namely two water seals, the waste discharge is not smooth, airflow instability and flame shake are caused, and the measurement accuracy is influenced; the third mode has the obvious defects that when the waste liquid barrel is filled with waste liquid and needs to be poured, the waste liquid barrel is easy to empty, and the tail end of the waste liquid pipe cannot be immersed below the liquid level, so that the water sealing effect is not achieved, and tempering can be directly caused; in addition, the unsmooth waste discharge can cause the shaking of flame and influence the measurement stability; if the water seal is in a failure state, the instrument cannot identify and give a prompt, and the instrument still opens the acetylene control valve and performs ignition operation, which inevitably brings danger.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model aims to design an automatic electronic water seal without operating on a waste liquid pipe, when no water seal exists in a waste liquid discharge pipeline or the water seal is invalid, an instrument prohibits opening the gas and gives a prompt, and simultaneously monitors the water seal in real time in the working process, and immediately closes the gas and gives a prompt when abnormal conditions are found, thereby reducing the tempering phenomenon caused by discharging acetylene from the waste liquid pipe; the water seal failure caused by the pressure increase in the atomizing cavity caused by human errors or various reasons in the prior art is also reduced, and the safety of operators is further ensured.

The utility model is realized by the following technical scheme:

the automatic water seal device of the spectrometer structurally comprises a main body, a burner and an atomizing chamber, wherein the burner is arranged at the upper end of the main body, and the atomizing chamber is positioned inside the main body;

still chew, arrange the waste pipe including water seal, magnetism float, sensor, waste liquid, the water seal sets up the inside in the main part, the sensor is located the bottom of water seal, the waste liquid is chewed and is connected with the water seal, arrange the waste pipe and connect in the water seal, place magnetism float in the water seal, have a magnetic switch on the water seal outer wall, when magnetism float rises to a certain position, the magnetic switch-on, and this signal connects to instrument control system and is used for carrying out the water seal state and indicates.

As a further optimization of the technical scheme, the waste liquid nozzle is connected with the water seal in a sealing way.

The sample entering the atomizing chamber is atomized and then mixed with air and acetylene, the gaseous component flows to the seam of the burner under the action of air flow, the acetylene is ignited at the seam, and the liquid component (waste liquid) in the atomizing chamber flows into the water sealing device through the waste liquid nozzle.

The water seal device is directly connected with the waste liquid nozzle of the atomization cavity in a sealing manner, a magnetic floater is arranged in the water seal, a magnetic switch is arranged on the outer wall of the water seal, when the floater floats to a certain position in the waste liquid, the magnetic switch is switched on, and the signal is connected to the instrument control system to indicate the water seal state.

Advantageous effects

Compared with the prior art, the automatic water seal device of the spectrometer has the following advantages:

1. the utility model solves the tempering problem easily caused by human error in the traditional mode.

2. The utility model realizes automatic water sealing and improves the automation degree of the instrument.

3. The utility model has smooth waste discharge, can not cause flame jumping, and improves the measurement stability.

4. The utility model carries out water seal inspection before ignition, realizes real-time monitoring, can prompt when problems occur, and improves the safety and humanized design of the instrument.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic front view of an automatic water seal device of a spectrometer according to the present invention.

FIG. 2 is a schematic side view of an automatic water seal device of a spectrometer according to the present invention;

FIG. 3 is a schematic diagram of a specific application of the flame atomic absorption spectrometer.

In the figure: the device comprises a main body 1, a combustor 2, an atomizing chamber 3, a water seal 4, a magnetic floater 5, a sensor 6, a waste liquid nozzle 7 and a waste discharge pipe 8.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the utility model easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the utility model.

Examples

Referring to fig. 1-2, the present invention provides an automatic water sealing device for a spectrometer, which comprises a main body 1, a burner 2, and an atomizing chamber 3, wherein the burner 2 is disposed at the upper end of the main body 1, the atomizing chamber 3 is disposed inside the main body 1,

still chew 7, arrange waste pipe 8 including water seal 4, magnetic float 5, sensor 6, waste liquid, water seal 4 sets up inside main part 1, sensor 6 is located the left side bottom of water seal 4, and waste liquid is chewed 7 and is connected with water seal 4, arranges waste pipe 8 and connects in water seal 4, sets up magnetic float 5 in the water seal 4, has a magnetic switch on the water seal outer wall, and when magnetic float 5 rose a certain position, the magnetic switch-on, and this signal connects to instrument control system and is used for carrying out the water seal state indication.

The waste liquid nozzle 7 is connected with the water seal 4 in a sealing way. And an isolation line is arranged on the outer wall of the water seal 4 to prevent the floater from inclining.

The working principle is as follows: the sample entering the atomizing chamber is atomized and then mixed with air and acetylene, gaseous components flow to a burner seam under the action of air flow, the acetylene is ignited at the seam, liquid components in the atomizing chamber flow into a water seal device through a waste liquid nozzle, the water seal device is directly in sealing connection with the waste liquid nozzle of the atomizing cavity, a magnetic floater is placed in the water seal, a magnetic switch is arranged on the outer wall of the water seal, when the floater rises to a certain position, the magnetic switch is switched on, and the signal is connected to an instrument control system for indicating the water seal state. The waste liquid in the water seal is accumulated to a certain degree and is naturally discharged through a waste liquid pipe after exceeding a waste discharge port of the water seal;

referring to fig. 3, which is a schematic diagram of a specific application of the flame atomic absorption spectrometer, the instrument first checks the acetylene gas pressure before ignition, and the pressure does not reach a set value to prompt and close the acetylene control valve; water seal detection is carried out, when the floating height of the floater is insufficient due to no water or insufficient water, the magnetic sensor cannot sense a signal, and the controller prompts and automatically closes the acetylene control valve when the controller cannot receive an effective signal of the sensor; after the checks are normal, the controller outputs a command to open the acetylene control valve and outputs an ignition command to the ignition mechanism; the flame monitoring mechanism is used for monitoring the flame condition; after the flame is ignited, the controller monitors the water seal state all the time, and immediately closes the acetylene control valve after abnormality is found, and prompts the abnormality.

While there have been shown and described what are at present considered the fundamental principles of the utility model, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the utility model, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the utility model be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (2)

1. The utility model provides an automatic water seal arrangement of spectrum appearance, its structure includes main part (1), combustor (2), atomizer chamber (3), the upper end of main part (1) is equipped with combustor (2), atomizer chamber (3) are located the inside of main part (1), its characterized in that:

still chew (7), arrange waste pipe (8) including water seal (4), magnetic float (5), sensor (6), waste liquid, water seal (4) set up inside main part (1), sensor (6) are located the left side bottom of water seal (4), waste liquid is chewed (7) and is connected with water seal (4), arrange waste pipe (8) and connect in water seal (4), set up magnetic float (5) in water seal (4), have a magnetic switch on the water seal outer wall, when magnetic float (5) rose a certain position, the magnetic switch-on, and this signal connects to instrument control system and is used for carrying out the water seal state indication.

2. The automatic water seal device of spectrometer of claim 1, wherein: the waste liquid nozzle (7) is connected with the water seal (4) in a sealing way.

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