Device for providing flame through air-assisted acetylene combustion

Abstract

The invention belongs to the technical field of spectrograph analysis, and particularly relates to an air-assisted acetylene combustion flame providing device which comprises a combustion head, an atomizing chamber, a waste liquid pipe and a waste liquid bottle, the combustion head is arranged on the outer top of the atomizing chamber and communicated with the atomizing chamber, one side of the atomizing chamber is communicated with an atomizer, and a sample and air enter the atomizing chamber through the atomizer and enter the waste liquid pipe through the waste liquid bottle. The atomizing chamber is communicated with an acetylene pipe and a waste liquid pipe, a control valve is arranged on the acetylene pipe, the position of the communication position of the waste liquid pipe and the atomizing chamber is lower than the position of the communication position of the acetylene pipe and the atomizing chamber, the position of the communication position of the waste liquid pipe and the atomizing chamber is lower than the atomizer, the waste liquid pipe is communicated with the lower portion in a waste liquid bottle, and a liquid level sensor is arranged in the waste liquid bottle. The liquid level sensor is in signal connection with the control valve; the liquid level sensor in the waste liquid bottle is higher than the communication part of the waste liquid pipe and the waste liquid bottle; the problem of preventing acetylene and air from escaping under the condition of ensuring smooth waste discharge is solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of spectrometer analysis, and particularly relates to a device for providing a flame for air-assisted acetylene combustion. BACKGROUND

[0002] Flame atomic absorption is one of the analysis instruments which are very popular in China at present, in atomic absorption spectrum analysis, acetylene is generally used as fuel gas, and air and dinitrogen oxide are used as combustion-supporting gas. Two kinds of flames are generally used, and the properties are as follows: Air-acetylene flame: it is the most widely used flame in atomic absorption spectrum, and the highest temperature thereof is 2300 DEG C.

[0003] Nitrous oxide-acetylene flame: the heat of the nitrous oxide-acetylene flame is significantly higher than that of the air-acetylene flame (2900 DEG C), and ignition is also faster. The fuel gas (acetylene) is mixed with the fine mist drops of the test solution in the atomization chamber, the gas-liquid mixing is uniform by the gas disturbing impeller installed in the atomization chamber, and the large liquid drops are condensed and discharged from the waste liquid port, the waste liquid discharge port is provided with a water seal, and the water seal can prevent the acetylene and air from escaping.

[0004] At present, the commonly used water seal mode is to knot the waste liquid pipe, and insert the tail end into water to form a water seal and place backfire. However, this mode is prone to cause poor waste discharge, so as to cause the liquid accumulation in the atomization chamber. SUMMARY

[0005] The application aims at the defects of the prior art, and adopts the mode that the waste liquid is introduced into the waste liquid bottle from the low point and discharged from the high point, the waste liquid is introduced into the waste liquid bottle from the low point, and when the waste liquid reaches a certain height, the waste liquid is discharged from the high point of the waste liquid bottle, the waste liquid and the external air are isolated, the function of liquid seal is achieved, the waste liquid is directly discharged from the atomization chamber into the waste liquid bottle, the liquid level information is fed back to the control valve through the liquid level sensor, so that the ignition cannot be opened when there is no liquid seal, and the problems of preventing the acetylene and air from escaping and ensuring the smooth waste discharge are solved.

[0006] The above technical purpose of the application is achieved by the following technical scheme: The device of air-assisted acetylene combustion provides flame, comprising combustion head, atomization chamber, waste liquid pipe, waste liquid bottle, the outer top of the atomization chamber is provided with combustion head, the combustion head is communicated with the atomization chamber, one side of the atomization chamber is communicated with atomizer, sample and air enter into the atomization chamber through the atomizer, the atomization chamber is communicated with acetylene pipe and waste liquid pipe, the control valve is arranged on the acetylene pipe, the position of the waste liquid pipe communicated with the atomization chamber is lower than the position of the acetylene pipe communicated with the atomization chamber, the position of the waste liquid pipe communicated with the atomization chamber is lower than the atomizer, the lower part of the waste liquid bottle is communicated with the waste liquid pipe, the liquid level sensor is arranged in the waste liquid bottle, the liquid level sensor is signal connected with the control valve, the height of the liquid level sensor in the waste liquid bottle is higher than the position of the waste liquid pipe communicated with the waste liquid bottle.

[0007] Preferably, the atomizer is provided with sample channel and air channel, and the sample channel and the air channel are communicated with the atomization chamber.

[0008] Preferably, the opening of the waste liquid bottle is upward, and the bottle cap is matched with the opening of the waste liquid bottle.

[0009] Preferably, the mounting rod is arranged on the bottle cap and extends into the waste liquid bottle, the lower end of the mounting rod is provided with the liquid level sensor, the upper end of the mounting rod is screw connected with the bottle cap, and the upper end of the mounting rod penetrates out of the bottle cap.

[0010] Preferably, the waste liquid bottle is provided with waste discharge pipe, and the position of the waste discharge pipe communicated with the waste liquid bottle is higher than the position of the waste liquid pipe communicated with the waste liquid bottle.

[0011] Preferably, the control valve is one-way switch valve.

[0012] Preferably, the waste liquid bottle is made of transparent material.

[0013] The beneficial effects of the present application are: The present application adopts the mode that the waste liquid enters into the waste liquid bottle from low point to high point through the waste liquid pipe, the waste liquid enters into the waste liquid bottle from low point, and the waste liquid is discharged from high point when the waste liquid reaches a certain height, the waste liquid and the external air are isolated, the function of liquid seal is realized, the waste liquid is directly discharged from the atomization chamber into the waste liquid bottle, the liquid level information is fed back to the control valve through the liquid level sensor, so that the ignition cannot be opened when there is no liquid seal, and the problem that the acetylene and air escape is prevented under the condition that the waste liquid is smoothly discharged is solved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The structure schematic diagram of the present application is shown in the figure; Fig. 2 The structure schematic diagram of the waste liquid bottle in the present application is shown in the figure; Fig. 3 This is a cross-sectional view of the waste liquid bottle in this application.

[0015] The components are: 1. Burner head; 2. Atomization chamber; 3. Waste liquid pipe; 4. Waste liquid bottle; 5. Mounting rod; 6. Drain pipe; 7. Atomizer; 8. Control valve; 9. Liquid level sensor; 10. Sample channel; 11. Air channel; 12. Bottle cap; 13. Acetylene tube. Detailed Implementation

[0016] like Figs. 1-3 As shown, an air-assisted acetylene combustion flame-providing device includes a burner head 1, an atomizing chamber 2, a waste liquid pipe 3, and a waste liquid bottle 4. The burner head 1 is located on the top of the atomizing chamber 2 and is connected to the atomizing chamber 2. One side of the atomizing chamber 1 is connected to an atomizer 7. Samples and air enter the atomizing chamber 2 through the atomizer 7. The atomizing chamber 2 is connected to an acetylene pipe 13 and a waste liquid pipe 3. A control valve 8 is provided on the acetylene pipe 13. The position of the connection between the waste liquid pipe 3 and the atomizing chamber 2 is lower than the position of the connection between the acetylene pipe 13 and the atomizing chamber 2. The position of the connection between the waste liquid pipe 3 and the atomizing chamber 2 is lower than the position of the atomizer 7. The waste liquid pipe 3 is connected to the lower part of the waste liquid bottle 4. A liquid level sensor 9 is provided inside the waste liquid bottle 4. The liquid level sensor 9 is signal-connected to the control valve 8. The height of the liquid level sensor 9 inside the waste liquid bottle 4 is higher than the connection between the waste liquid pipe 3 and the waste liquid bottle 4.

[0017] In this embodiment, during use, the sample and air are input into the atomization chamber 2 through the atomizer 7, and a flame is generated when the burner head 1 is ignited. Because the connection point between the waste liquid pipe 3 and the atomization chamber 2 is lower than the connection point between the acetylene pipe 13 and the atomization chamber 2, the waste liquid generated in the atomization chamber 2 can flow out through the waste liquid pipe 3. Simultaneously, the waste liquid remaining in the atomization chamber 2 does not affect the supply of acetylene and air into the atomization chamber 2 via the acetylene pipe 13. After the generated liquid flows into the waste liquid bottle 4, because the waste liquid pipe 3 connects to the lower part of the waste liquid bottle 4, the waste liquid in the waste liquid bottle 4 flows in from a lower position and out from a higher position, ensuring that the connection point between the waste liquid pipe 3 and the waste liquid bottle 4 is always sealed by the waste liquid. Since the level sensor 9 is higher than the connection point between the waste liquid pipe 3 and the waste liquid bottle 4 within the waste liquid bottle 4, this ensures that the connection point between the waste liquid pipe 3 and the waste liquid bottle 4 is submerged in waste liquid, thus achieving a liquid seal. When the liquid level in the waste liquid bottle 4 drops to a certain position, the liquid level sensor 9 transmits a signal to the control valve 8, and the control valve 8 closes. This prevents acetylene from being introduced into the atomization chamber 2 when there is insufficient waste liquid, thus preventing acetylene from escaping.

[0018] As a preferred mode, the atomizer 7 is provided with a sample channel 10 and an air channel 11, both of which communicate with the atomizing chamber 2. By inputting acetylene and air, the torch head 1 is ignited to produce a flame.

[0019] As a preferred mode, the opening of the waste liquid bottle 4 is upward, and a bottle cap 12 is fitted at the opening of the waste liquid bottle 4. In this way, the liquid level sensor 9 is installed through the bottle cap 12, and the waste liquid is poured out of the waste liquid bottle 4.

[0020] As a preferred mode, the bottle cap 12 is provided with a mounting rod 5 extending into the waste liquid bottle 4, the lower end of the mounting rod 5 is provided with the liquid level sensor 9, the upper end of the mounting rod 5 is threadedly connected with the bottle cap 12, and the upper end of the mounting rod 5 penetrates out of the bottle cap 12. In this way, the height of the liquid level sensor 9 is adjusted through the cooperation of the mounting rod 5 and the bottle cap 2.

[0021] As a preferred mode, the waste liquid bottle 4 is provided with a waste liquid discharge pipe 6, and the position of the communication between the waste liquid discharge pipe 6 and the waste liquid bottle 4 is higher than the position of the communication between the waste liquid pipe 6 and the waste liquid bottle 4. The waste liquid in the waste liquid bottle 4 is discharged through the waste liquid discharge pipe 6.

[0022] As a preferred mode, the control valve 8 is a one-way switch valve, which prevents air from entering the atomizing chamber 2 from the acetylene pipe 13.

[0023] As a preferred mode, the waste liquid bottle 4 is made of transparent material. In this way, the position of the liquid level sensor 9 is observed, and the user is facilitated to observe.

Claims

1. A device for providing a flame for air-assisted acetylene combustion, characterized in that, The device includes a burner head (1), an atomizing chamber (2), a waste liquid pipe (3), and a waste liquid bottle (4). The burner head (1) is located on the top of the atomizing chamber (2), and the burner head (1) is connected to the atomizing chamber (2). One side of the atomizing chamber (1) is connected to an atomizer (7). The sample and air enter the atomizing chamber (2) through the atomizer (7). The atomizing chamber (2) is connected to an acetylene pipe (13) and a waste liquid pipe (3). A control valve (8) is provided on the acetylene pipe (13). The waste liquid pipe (3) is connected to the atomizing chamber (2) at the connection point. The position of the waste liquid pipe (3) is lower than the position of the connection between the acetylene pipe (13) and the atomizing chamber (2). The position of the connection between the waste liquid pipe (3) and the atomizing chamber (2) is lower than the position of the atomizer (7). The waste liquid pipe (3) is connected to the lower part of the waste liquid bottle (4). The waste liquid bottle (4) is equipped with a liquid level sensor (9). The liquid level sensor (9) is connected to the control valve (8). The height of the liquid level sensor (9) in the waste liquid bottle (4) is higher than the connection between the waste liquid pipe (3) and the waste liquid bottle (4).

2. The device for providing a flame for air-assisted acetylene combustion according to claim 1, characterized in that: The atomizer (7) is provided with a sample channel (10) and an air channel (11), both of which are connected to the atomization chamber (2).

3. The device for providing a flame for air-assisted acetylene combustion according to claim 1, characterized in that: The opening of the waste liquid bottle (4) faces upward, and a bottle cap (12) is provided at the opening of the waste liquid bottle (4).

4. The device for providing a flame for air-assisted acetylene combustion according to claim 3, characterized in that: The bottle cap (12) is provided with an installation rod (5) that extends into the waste liquid bottle (4). The liquid level sensor (9) is provided at the lower end of the installation rod (5). The upper end of the installation rod (5) is threadedly connected to the bottle cap (12). The upper end of the installation rod (5) extends through the bottle cap (12).

5. The apparatus for providing a flame for air-assisted acetylene combustion according to claim 1, characterized in that: The waste liquid bottle (4) is provided with a waste discharge pipe (6), and the position of the connection between the waste discharge pipe (6) and the waste liquid bottle (4) is higher than the position of the connection between the waste liquid pipe (6) and the waste liquid bottle (4).

6. The apparatus for providing a flame for air-assisted acetylene combustion according to claim 1, characterized in that: The control valve (8) is a one-way switching valve.

7. The apparatus for providing a flame for air-assisted acetylene combustion according to claim 4, characterized in that: The waste liquid bottle (4) is made of transparent material.

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