Detection probe for molten aluminum detection

Abstract

The utility model discloses a detection probe for molten aluminum detection relates to the technical field of molten aluminum detection, the utility model aims at solving the problem that the inlet and outlet of detection probe are close, and nitrogen is not contacted with molten aluminum fully and is circulated out of detection probe, the utility model discloses a probe body, the probe body is connected with the air pipe and the air pipe, the air pipe and the air pipe with the probe body intercommunication one end all stretch into the probe body inside setting, the air pipe and the air pipe stretch into the probe body inside one end all are bent and set to increase the distance of the air pipe and the air pipe end.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum liquid detection, and specifically to a detection probe for aluminum liquid detection. Background Technology

[0002] The hydrogen content detection probe used in molten aluminum is a key piece of equipment for controlling the quality of molten aluminum in the casting process. It is mainly used to quickly and accurately determine the concentration of dissolved hydrogen.

[0003] Currently, in the process of measuring hydrogen using the closed-loop circulation method, nitrogen gas needs to be circulated in the molten aluminum using a detection probe. This allows hydrogen in the molten aluminum to diffuse into the nitrogen gas, which then carries the hydrogen out. A thermal conductivity sensor is then used to detect the hydrogen concentration in the mixed gas, and the hydrogen content in the molten aluminum can be calculated based on the hydrogen concentration, thus enabling the detection of hydrogen content in the molten aluminum.

[0004] Existing detection probes are equipped with an air inlet pipe and an air outlet pipe. The air inlet pipe and the air outlet pipe are often designed to be adjacent to each other. That is, the air inlet and the air outlet inside the detection probe are close to each other. The gas coming out of the air inlet will immediately flow out of the air outlet. This means that the nitrogen gas cannot make sufficient contact with the molten aluminum. As a result, the nitrogen gas needs to be circulated multiple times to meet the detection requirements. Utility Model Content

[0005] To address the aforementioned problem—namely, the proximity of the inlet and outlet of the detection probe, which causes nitrogen gas to circulate out of the probe before fully contacting the molten aluminum—this invention proposes a detection probe for molten aluminum. The probe includes a probe body with an inlet pipe and an outlet pipe connected to it. The ends of both the inlet and outlet pipes that connect to the probe body extend into the probe body. The ends of both the inlet and outlet pipes that extend into the probe body are bent to increase the distance between their ends.

[0006] This utility model also proposes a detection probe for detecting molten aluminum, which includes a gas collecting hood with its opening facing downwards. The gas collecting hood is connected to an outlet pipe, and an inlet pipe is also provided through the gas collecting hood, with the bottom end of the inlet pipe extending into the lower part of the gas collecting hood.

[0007] A further feature of this invention is that the bottom end of the air inlet pipe is positioned lower than the bottom end of the air collection hood.

[0008] A further feature of this invention is that a filter is provided inside the gas collection hood, and the air inlet pipe passes through the filter.

[0009] A further feature of this invention is that the air inlet pipe and the air outlet pipe are fitted with copper sleeves for connection.

[0010] The beneficial effects of this utility model are as follows:

[0011] 1. By bending the ends of the inlet and outlet pipes, the distance between them can be increased, thereby increasing the travel distance of nitrogen in the molten aluminum. This allows for more thorough contact between the nitrogen and the molten aluminum, ensuring sufficient hydrogen evolution and reducing the number of nitrogen cycles.

[0012] 2. By placing the air inlet pipe below the gas collection hood, the movement distance of nitrogen in the molten aluminum can be increased, thereby allowing the nitrogen to fully contact the molten aluminum, ensuring the amount of hydrogen evolution, and reducing the number of nitrogen circulation cycles. Attached Figure Description

[0013] Figure 1 A schematic diagram of the structure of Embodiment 1 is shown.

[0014] Figure 2 A schematic diagram of the structure of Embodiment 2 is shown.

[0015] Reference numerals in the attached diagram: 1. Probe body; 2. Inlet pipe; 3. Outlet pipe; 4. Gas collection hood; 41. Filter; 5. Copper sleeve. Detailed Implementation

[0016] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0017] Example 1

[0018] This utility model proposes a detection probe for detecting molten aluminum, including a probe body 1, an inlet pipe 2 and an outlet pipe 3 connected to the probe body 1. The inlet pipe 2 is used to connect to a circulation pump, and the circulation pump is connected to a gas source, which is nitrogen, so as to inject nitrogen into the probe body 1. The outlet pipe 3 is also connected to the circulation pump to circulate the gas in the probe body 1.

[0019] The ends of the air inlet pipe 2 and the air outlet pipe 3 that connect to the probe body 1 extend into the probe body 1. The ends of the air inlet pipe 2 and the air outlet pipe 3 that extend into the probe body 1 are bent. Both the air inlet pipe 2 and the air outlet pipe 3 are bent twice. Specifically, the first bend of the air inlet pipe 2 is in a direction away from the air outlet pipe 3, and the first bend of the air outlet pipe 3 is in a direction away from the air inlet pipe 2. The second bend of both the air inlet pipe 2 and the air outlet pipe 3 is downward, so that the bottom ends of both the air inlet pipe 2 and the air outlet pipe 3 are facing downwards.

[0020] By bending the inlet pipe 2 and the outlet pipe 3 twice, the distance between the ends of the inlet pipe 2 and the outlet pipe 3 can be increased, thereby increasing the movement distance of nitrogen gas within the probe body 1. This further allows the nitrogen gas to come into more sufficient contact with the molten aluminum, ensuring the output of hydrogen in the molten aluminum and reducing the number of nitrogen gas cycles and the time required.

[0021] Example 2

[0022] This embodiment proposes a detection probe for detecting molten aluminum, including a gas collecting hood 4 with its opening facing downwards. The gas collecting hood 4 is connected to an outlet pipe 3 and an inlet pipe 2 is also provided on the gas collecting hood 4. The bottom end of the inlet pipe 2 extends into the lower part of the gas collecting hood 4 and is lower than the bottom end of the gas collecting hood 4.

[0023] A circulation pump is connected to the intake pipe 2, and a gas source, namely nitrogen, is connected to the circulation pump. The circulation pump can fill the intake pipe 2 with nitrogen, which is then sent into the molten aluminum below the intake hood 4. Nitrogen bubbles are formed in the molten aluminum, and hydrogen in the molten aluminum can be released into the nitrogen bubbles and mixed with the nitrogen.

[0024] Inside the gas collecting hood 4, there is also a filter 41 fixedly connected. The filter 41 can filter out impurities in the molten aluminum, preventing impurities from clogging the gas outlet pipe 3 and affecting the detection process.

[0025] A copper sleeve 5 is also fitted on the air inlet pipe 2 and the air outlet pipe 3. The copper sleeve 5 is located above the air collection hood 4 and is used to connect with the instrument bracket to fix the detection probe.

[0026] In summary, by bending the ends of the inlet pipe 2 and the outlet pipe 3, this invention increases the distance between their ends, thereby increasing the travel distance of nitrogen gas in the molten aluminum. This allows for more thorough contact between the nitrogen and the molten aluminum, ensuring sufficient hydrogen evolution and reducing the number of nitrogen circulation cycles. Furthermore, by positioning the inlet pipe 2 below the gas collecting hood 4, the travel distance of nitrogen gas in the molten aluminum is increased, ensuring sufficient contact between the nitrogen and the molten aluminum, guaranteeing sufficient hydrogen evolution, and reducing the number of nitrogen circulation cycles.

[0027] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0028] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0031] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A detection probe for detecting molten aluminum, characterized in that: It includes a probe body (1), on which an air inlet pipe (2) and an air outlet pipe (3) are connected. The ends of the air inlet pipe (2) and the air outlet pipe (3) that are connected to the probe body (1) extend into the interior of the probe body (1). The ends of the air inlet pipe (2) and the air outlet pipe (3) that extend into the interior of the probe body (1) are bent to increase the distance between the ends of the air inlet pipe (2) and the air outlet pipe (3).

2. A detection probe for detecting molten aluminum, characterized in that: It includes a gas collection hood (4), the gas collection hood (4) is set with its opening facing downwards, the gas collection hood (4) is connected to an air outlet pipe (3), and the gas collection hood (4) is also provided with an air inlet pipe (2), the bottom end of the air inlet pipe (2) extends into the lower part of the gas collection hood (4).

3. The detection probe for detecting molten aluminum according to claim 2, characterized in that: The bottom end of the air inlet pipe (2) is set lower than the bottom end of the air collection hood (4).

4. The detection probe for detecting molten aluminum according to claim 3, characterized in that: The gas collection hood (4) is equipped with a filter (41) inside, and the air inlet pipe (2) passes through the filter (41).

5. The detection probe for detecting molten aluminum according to claim 2, characterized in that: The air inlet pipe (2) and the air outlet pipe (3) are also fitted with copper sleeves (5) for connection.

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