Underwater molten aluminum leakage detection device and detection system
The underwater aluminum liquid leakage detection device enhances detection accuracy by processing sound information with signal amplification and shielding, addressing the reliance on manual monitoring in the aluminum processing industry.
Patent Information
- Application Number
- CN202420606669.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The aluminum processing industry faces high safety risks due to frequent molten aluminum leakage, which is often undetected in time due to reliance on manual monitoring and human judgment, leading to potential explosions.
An underwater aluminum liquid leakage detection device with a voiceprint pickup, processing boards, and signal processing components to collect and process sound information, enhancing detection accuracy and reliability through signal amplification, filtering, and electromagnetic shielding.
Provides accurate and reliable data support for detecting molten aluminum leakage, improving detection accuracy and enabling timely alarms to prevent accidents.
Smart Images
Figure CN222166456U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of aluminum liquid leakage detection, in particular to an underwater aluminum liquid leakage detection device and a detection system. Background Art
[0002] In recent years, accidents have occurred frequently in the aluminum processing industry. Among them, leakage of molten aluminum is a high-risk point in the deep well casting process. Once high-temperature molten aluminum leaks and improperly contacts cooling water, it will cause an explosion accident, and the safety risk is extremely high. At present, the aluminum processing industry has a low level of informatization in production safety monitoring, and production safety warnings are mostly experience-oriented, that is, manual monitoring is mostly used in the production process. Due to the heavy reliance on human monitoring and human judgment, if the staff leaves their posts without authorization, it is easy to cause the leakage of molten aluminum to fail to be discovered in time, or misjudgment due to lack of experience of the staff.
[0003] It can be seen that the existing technology still needs to be improved and enhanced. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present utility model is to provide an underwater molten aluminum leakage detection device for collecting and processing the sound information of underwater molten aluminum, so as to provide accurate and reliable data support for subsequent underwater molten aluminum leakage detection and judgment.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] An underwater aluminum liquid leakage detection device comprises a shell, wherein a first processing board, a second processing board and a voiceprint pickup are arranged in the shell, and the voiceprint pickup is arranged at the bottom of the shell; the voiceprint pickup is electrically connected to the other end of the second processing board, one end of the second processing board is electrically connected to the other end of the first processing board, and one end of the first processing board outputs an electrical signal through a network cable; the second processing board is used to improve the quality of sound information obtained by the voiceprint pickup, and the first processing board is used to perform analog-to-digital conversion on the signal output by the second processing board.
[0007] In the underwater aluminum liquid leakage detection device, a first connection socket, a second connection socket and a data line are also provided in the shell, and the voiceprint pickup is electrically connected to the second processing board through the data line and the second connection socket in sequence; one end of the second processing board is electrically connected to the other end of the first processing board through the first connection socket.
[0008] In the underwater aluminum liquid leakage detection device, a second shielding box and a processing box are arranged on the second processing board, and a preamplifier, a bandpass filter, an automatic gain controller and a buffer are arranged in the processing box; the output end of the voiceprint pickup is connected to the input end of the preamplifier through the data line, the output end of the preamplifier is connected to the input end of the bandpass filter, the output end of the bandpass filter is connected to the input end of the automatic gain controller, the output end of the automatic gain controller is connected to the input end of the buffer, and the output end of the buffer is electrically connected to the first processing board through the first connection socket; the second shielding box is used to prevent electromagnetic interference from affecting the operation of the second processing board.
[0009] In the underwater aluminum liquid leakage detection device, the bandpass filter includes a Chebyshev filter for filtering high-frequency noise and a Butterworth filter for filtering low-frequency noise; the input end of the Chebyshev filter is connected to the output end of the preamplifier, the output end of the Chebyshev filter is connected to the input end of the Butterworth filter, and the output end of the Butterworth filter is connected to the input end of the automatic gain controller.
[0010] In the underwater aluminum liquid leakage detection device, a first shielding box and an analog-to-digital converter are provided on the first processing board, and the first shielding box is used to prevent electromagnetic interference from affecting the operation of the first processing board; the output end of the buffer is electrically connected to the input end of the analog-to-digital converter through the first connecting socket, and the output end of the analog-to-digital converter outputs an electrical signal through a network cable.
[0011] In the underwater aluminum liquid leakage detection device, a fixing column is provided at the bottom of the shell, a receiving groove is provided in the fixing column, and the voiceprint pickup is fixed in the receiving groove.
[0012] In the underwater aluminum liquid leakage detection device, the shell is a waterproof shell made of waterproof material, and the shell is filled with temperature-resistant sealant.
[0013] The present application also correspondingly discloses an underwater aluminum liquid leakage detection system, comprising an analysis device and an underwater aluminum liquid leakage detection device as described above, wherein the output end of the underwater aluminum liquid leakage detection device is electrically connected to the input end of the analysis device, and the analysis device is used to determine whether there is an underwater aluminum liquid leakage problem based on the signal fed back by the underwater aluminum liquid leakage detection device.
[0014] The underwater aluminum liquid leakage detection system further includes an alarm device, which is electrically connected to the analysis device and is used to realize underwater aluminum liquid leakage alarm.
[0015] Beneficial effects:
[0016] The utility model provides an underwater aluminum liquid leakage detection device. A voiceprint pickup obtains sound information of underwater aluminum liquid. After the obtained sound information is processed by a first processing board and a second processing board, the amplification factor and signal quality of the signal output by the detection device can be ensured, so as to provide accurate and reliable data support for subsequent underwater aluminum liquid leakage detection and analysis, and improve the accuracy and reliability of underwater aluminum liquid detection results. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the underwater aluminum liquid leakage device provided by the utility model;
[0018] Figure 2 A schematic diagram of the internal structure of the underwater aluminum liquid leakage device provided by the utility model;
[0019] Figure 3 This is a schematic diagram of the connection structure of the underwater aluminum liquid leakage device provided by the utility model.
[0020] Explanation of main component symbols: 1-shell, 11-fixing column, 12-high temperature resistant sealant, 2-first processing board, 21-first shielding box, 22-analog-to-digital converter, 3-second processing board, 31-second shielding box, 32-processing box, 321-preamplifier, 322-bandpass filter, 323-automatic gain controller, 324-buffer, 4-voiceprint pickup, 5-first connecting socket, 6-second connecting socket, 71-network cable, 72-data cable. DETAILED DESCRIPTION
[0021] The utility model provides an underwater aluminum liquid leakage detection device and a detection system. In order to make the purpose, technical scheme and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples.
[0022] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the term "bottom" etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, and cannot be understood as a limitation on the present invention; in addition, the terms "installation", "connection" etc. should be understood in a broad sense, and for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0023] See also Figure 1The utility model provides an underwater aluminum liquid leakage detection device, including a shell 1, wherein a first processing board 2, a second processing board 3 and a voiceprint pickup 4 are arranged in the shell 1, and the voiceprint pickup 4 is arranged at the bottom of the shell 1; the voiceprint pickup 4 is electrically connected to the other end of the second processing board 3, one end of the second processing board 3 is electrically connected to the other end of the first processing board 2, and one end of the first processing board 2 outputs an electrical signal through a network cable 71; the second processing board 3 is used to improve the quality of the sound information obtained by the voiceprint pickup 4, and the first processing board 2 is used to perform analog-to-digital conversion on the signal output by the second processing board 3.
[0024] The present application discloses an underwater aluminum liquid leakage detection device. The voiceprint pickup 4 obtains the sound information of the underwater aluminum liquid. After the obtained sound information is processed by the first processing board 2 and the second processing board 3, the amplification factor and signal quality of the signal output by the detection device can be ensured, so as to provide accurate and reliable data support for the subsequent underwater aluminum liquid leakage detection and analysis, and improve the accuracy and reliability of the underwater aluminum liquid detection results.
[0025] In this example, see Figure 2 , the first processing board 2 is arranged above the second processing board 3; the network cable 71 is a tensile-resistant shielded network cable.
[0026] For further information, see Figure 2 The shell 1 is also provided with a first connection socket 5, a second connection socket 6 and a data line 72. The voiceprint pickup 4 is electrically connected to the second processing board 3 through the data line 72 and the second connection socket 6 in sequence; one end of the second processing board 3 is electrically connected to the other end of the first processing board 2 through the first connection socket 5.
[0027] In this embodiment, the first connection socket 5 and the second connection socket 6 are existing circuit board connectors, specifically, pin row sockets, which are used to connect pin rows or pin strips to allow connection to other circuit boards or modules.
[0028] For further information, see Figure 2 and Figure 3The second processing board 3 is provided with a second shielding box 31 and a processing box 32, and the processing box 32 is provided with a preamplifier 321, a bandpass filter 322, an automatic gain controller 323 and a buffer 324; the output end of the voiceprint pickup 4 is connected to the input end of the preamplifier 321 through the data line 72, the output end of the preamplifier 321 is connected to the input end of the bandpass filter 322, the output end of the bandpass filter 322 is connected to the input end of the automatic gain controller 323, the output end of the automatic gain controller 323 is connected to the input end of the buffer 324, and the output end of the buffer 324 is electrically connected to the first processing board 2 through the first connecting socket 5; the second shielding box 31 is used to prevent electromagnetic interference from affecting the operation of the second processing board 3.
[0029] In this embodiment, the sound signal collected underwater by the voiceprint pickup 4 is ±1mV-±100mV, and when the analog-to-digital converter 22 performs analog-to-digital conversion control processing, ±1.5V is generally required to ensure the signal-to-noise ratio. Therefore, the sound information is amplified to 20dB-60dB through the preamplifier 321 to meet the sound conversion processing requirements; that is, the preamplifier 321 can increase the signal-to-noise ratio, thereby improving the signal-to-noise ratio of the system and ensuring that the signal can be correctly processed by subsequent devices.
[0030] In this embodiment, the second shielding box 31, the bandpass filter 322, the automatic gain controller 323 and the buffer 324 are all prior arts. The bandpass filter 322 is used to select signals within a specific frequency range and discard signals in other frequency ranges, that is, to remove unnecessary frequency components so that the system only processes signals of interest and suppresses interference signals; the automatic gain controller 323 is used to automatically adjust the gain of the amplifier according to the strength of the input signal to ensure that the amplitude of the output signal is within a suitable range; the automatic gain controller 323 is used to prevent signal overload or distortion, and at the same time ensure that the quality of the output signal can remain stable even when the input signal strength changes; the buffer 324 is used to protect the connection between the input and output devices to prevent signal loss or distortion; the buffer 324 can reduce impedance mismatch during signal transmission, so that the signal can be transmitted to the next processing stage more stably, thereby improving the quality and stability of the signal; the second shielding box 31 is used to isolate the signal inside the circuit from external electromagnetic radiation, protect the circuit from external interference, and ensure the normal operation of the circuit. The second shielding box 31 may include an EMI filter.
[0031] Furthermore, the bandpass filter 322 includes a Chebyshev filter for filtering high-frequency noise and a Butterworth filter for filtering low-frequency noise; the input end of the Chebyshev filter is connected to the output end of the preamplifier 321, the output end of the Chebyshev filter is connected to the input end of the Butterworth filter, and the output end of the Butterworth filter is connected to the input end of the automatic gain controller 323.
[0032] In this embodiment, the Chebyshev filter and the Butterworth filter are both existing technologies; high-frequency noise includes the Nyquist frequency, which can also be understood as high-frequency intake; low-frequency noise mainly includes background noise and background interference, and background interference refers to a large amount of industrial equipment noise generated in the production process, including water pumps, fans, cutting machines, winches, metal collision sounds, etc.
[0033] For further information, see Figure 2 and Figure 3 The first processing board 2 is provided with a first shielding box 21 and an analog-to-digital converter 22, and the first shielding box 21 is used to prevent electromagnetic interference from affecting the operation of the first processing board 2; the output end of the buffer 324 is electrically connected to the input end of the analog-to-digital converter 22 through the first connecting socket 5, and the output end of the analog-to-digital converter 22 outputs an electrical signal through a network cable 71.
[0034] In this embodiment, the first shielding box 21 and the analog-to-digital converter 22 are both prior arts; the first shielding box 21 is used to isolate the signal inside the circuit from the external electromagnetic radiation, protect the circuit from the influence of external interference, so as to ensure the normal operation of the circuit, and the first shielding box 21 may include an EMI filter; the main function of the analog-to-digital converter 22 is to convert the analog signal into digital form so that the computer or digital system can process and analyze these signals; in sound signal processing, the analog-to-digital converter 22 is often used to convert the sound captured by the microphone into digital form for subsequent digital signal processing and storage.
[0035] For further information, see Figure 1 and Figure 2 A fixing column 11 is provided at the bottom of the shell 1, and a receiving groove is provided in the fixing column 11, and the voiceprint pickup 4 is fixed in the receiving groove.
[0036] In this embodiment, the fixing column 11 and the housing 1 are integrally formed, and the voice print pickup 4 is glued to the receiving groove.
[0037] Furthermore, the housing 1 is a waterproof housing 1 made of waterproof material, and the housing 1 is filled with temperature-resistant sealant.
[0038] In this embodiment, the housing 1 is made of waterproof material, which can prevent water or water vapor from entering the interior of the housing 1 and affecting the normal operation of the electronic components inside the housing 1. By filling with heat-resistant sealant, the negative impact of temperature changes on the normal operation of the electronic components can be reduced, thereby improving the stability of the underwater aluminum liquid leakage detection device during operation.
[0039] The present application also correspondingly discloses an underwater aluminum liquid leakage detection system, comprising an analysis device and an underwater aluminum liquid leakage detection device as described above, wherein the output end of the underwater aluminum liquid leakage detection device is electrically connected to the input end of the analysis device, and the analysis device is used to determine whether there is an underwater aluminum liquid leakage problem based on the signal fed back by the underwater aluminum liquid leakage detection device.
[0040] In this embodiment, the analysis device is a prior art device, and includes a control chip of the STM32 series or an MCU controller.
[0041] Furthermore, the underwater aluminum liquid leakage detection system also includes an alarm device, which is electrically connected to the analysis device and is used to realize underwater aluminum liquid leakage alarm.
[0042] In this embodiment, the alarm device can be a sound alarm device, such as a buzzer, installed at the aluminum liquid processing site. When an underwater aluminum liquid problem occurs, the alarm device starts working to realize timely alarm on site, so that on-site personnel can respond in time and reduce accident losses.
[0043] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and the utility model concept of the utility model, and all these changes or substitutions should fall within the protection scope of the utility model.
Claims
1. An underwater aluminum liquid leakage detection device, characterized in that: The device comprises a shell, wherein a first processing board, a second processing board and a voiceprint pickup are arranged in the shell, and the voiceprint pickup is arranged at the bottom of the shell; the voiceprint pickup is electrically connected to the other end of the second processing board, one end of the second processing board is electrically connected to the other end of the first processing board, and one end of the first processing board outputs an electrical signal through a network cable; The second processing board is used to improve the quality of the sound information obtained by the voiceprint pickup, and the first processing board is used to perform analog-to-digital conversion on the signal output by the second processing board.
2. The underwater aluminum liquid leakage detection device according to claim 1 is characterized in that: The shell is also provided with a first connection socket, a second connection socket and a data line. The voiceprint pickup is electrically connected to the second processing board through the data line and the second connection socket in sequence; one end of the second processing board is electrically connected to the other end of the first processing board through the first connection socket.
3. The underwater aluminum liquid leakage detection device according to claim 2 is characterized in that: A second shielding box and a processing box are provided on the second processing board, and a preamplifier, a bandpass filter, an automatic gain controller and a buffer are provided in the processing box; the output end of the voiceprint pickup is connected to the input end of the preamplifier through the data line, the output end of the preamplifier is connected to the input end of the bandpass filter, the output end of the bandpass filter is connected to the input end of the automatic gain controller, the output end of the automatic gain controller is connected to the input end of the buffer, and the output end of the buffer is electrically connected to the first processing board through the first connecting socket; the second shielding box is used to prevent electromagnetic interference from affecting the operation of the second processing board.
4. The underwater aluminum liquid leakage detection device according to claim 3 is characterized in that: The bandpass filter comprises a Chebyshev filter for filtering high-frequency noise and a Butterworth filter for filtering low-frequency noise; the input end of the Chebyshev filter is connected to the output end of the preamplifier, the output end of the Chebyshev filter is connected to the input end of the Butterworth filter, and the output end of the Butterworth filter is connected to the input end of the automatic gain controller.
5. The underwater aluminum liquid leakage detection device according to claim 3 is characterized in that: A first shielding box and an analog-to-digital converter are provided on the first processing board, and the first shielding box is used to prevent electromagnetic interference from affecting the operation of the first processing board; the output end of the buffer is electrically connected to the input end of the analog-to-digital converter through the first connecting socket, and the output end of the analog-to-digital converter outputs an electrical signal through a network cable.
6. The underwater aluminum liquid leakage detection device according to claim 1, characterized in that: A fixing column is arranged at the bottom of the shell, a receiving groove is arranged in the fixing column, and the voice print pickup is fixed in the receiving groove.
7. The underwater aluminum liquid leakage detection device according to claim 1 is characterized in that: The shell is a waterproof shell made of waterproof material, and the shell is filled with temperature-resistant sealant.
8. An underwater aluminum liquid leakage detection system, characterized in that: It comprises an analysis device and an underwater aluminum liquid leakage detection device as described in any one of claims 1 to 7, wherein the output end of the underwater aluminum liquid leakage detection device is electrically connected to the input end of the analysis device, and the analysis device is used to determine whether there is an underwater aluminum liquid leakage problem based on the signal fed back by the underwater aluminum liquid leakage detection device.
9. The underwater aluminum liquid leakage detection system according to claim 8, characterized in that: It also includes an alarm device, which is electrically connected to the analysis device and is used to realize underwater aluminum liquid leakage alarm.