Visual sampler for corrosive medium

Abstract

The invention discloses a visual sampler for a corrosive medium. The problems that existing corrosive medium sampling equipment mostly depends on manual operation, efficiency is low, potential safety hazards exist, large-range sampling is difficult, and sampling precision is low are solved. The gas tank is arranged for the medium containing tank, the sampling pipeline, the deflation pipeline, the liquid drainage pipeline, the liquid inlet pipeline and the gas inlet pipeline are arranged between the medium containing tank and the gas tank, the corresponding triplet pneumatic valves are arranged on the pipelines, and the gas tank and the triplet pneumatic valves are used for controlling different triplet pneumatic valves to be opened or closed. And then sampling, deflating, liquid discharging, liquid feeding and gas feeding are controlled, so that unmanned operation is realized, the sampling efficiency is improved, and injury to personnel is avoided.

Description

Technical Field

[0001] This invention relates to samplers for corrosive media, and more specifically to a visual sampler for corrosive media. Background Technology

[0002] In industries such as chemical, metallurgical, environmental protection, and pharmaceutical, it is often necessary to sample and test corrosive media such as acid and alkali solutions, chlorine-containing media, and corrosive solvents in order to control the quality of the production process and ensure the safe operation of equipment. Existing corrosive media sampling equipment has several drawbacks: First, most samplers are made of ordinary metal, which cannot withstand the erosion of strong corrosive media, making them prone to leakage and damage, posing safety hazards. Second, the sampling process relies heavily on manual operation, requiring manual movement of the sampler, manual control of the sample volume, and manual weighing, resulting in low efficiency. Furthermore, direct contact with corrosive media can easily cause personal injury. Third, the sampling process lacks visual monitoring, making it impossible to observe the media sampling status in real time, hindering accurate control of the sampling process and leading to problems such as sample volume deviation and media leakage. Fourth, most existing samplers are fixed structures, unable to automatically move and switch sampling points, resulting in poor adaptability, especially unsuitable for multi-sampling-point, large-area sampling scenarios. Fifth, some samplers do not consider pressure requirements, making them unable to operate stably under high-pressure corrosive media sampling conditions, compromising sampling accuracy. Summary of the Invention

[0003] To address the technical problems of existing corrosive medium sampling equipment, which relies heavily on manual operation, resulting in low efficiency, safety hazards, difficulty in large-scale sampling, and low sampling accuracy, this invention provides a visual sampler for corrosive media.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A visual sampler for corrosive media, characterized by: This includes gas cylinders for holding high-pressure gases, medium containers for holding corrosive media, and gas collection pipes; One end of the gas collecting pipe is connected to the gas tank, and the other end is sealed. A sampling pipe, a venting pipe, a drain pipe, a liquid inlet pipe, and a gas inlet pipe are provided between the middle part of the pipe and the medium container. One end of the sampling pipeline is connected to the medium container tank, and the other end is used for sampling. A sampling pump and a sampling triple pneumatic valve are provided in the middle. One end of the venting pipe is connected to the medium container tank, and the other end is used for venting. A venting triple pneumatic valve is provided in the middle. One end of the drain pipe is connected to the medium container tank, and the other end is used for draining. A drain triple pneumatic valve is provided in the middle of the pipe. One end of the liquid inlet pipe is connected to the medium container tank, and the other end is used for liquid inlet. A liquid inlet triple pneumatic valve is provided in the middle. One end of the air intake pipe is connected to the medium container tank, and the other end is used for air intake. An air intake triple pneumatic valve is provided in the middle, and a one-way valve is provided near the other end. The air inlet ends of the sampling triple pneumatic valve, the venting triple pneumatic valve, the draining triple pneumatic valve, the inlet triple pneumatic valve, and the inlet triple pneumatic valve are respectively connected to the air collection pipe.

[0005] Furthermore, it also includes a central control unit; The central control unit is electrically connected to the control terminals of the sampling pump, the sampling triple pneumatic valve, the venting triple pneumatic valve, the draining triple pneumatic valve, the inlet triple pneumatic valve, and the inlet triple pneumatic valve.

[0006] Furthermore, one end of the sampling pipe is connected to the side wall of the medium container, and a flow sensor is provided in the middle; the flow sensor is electrically connected to the central control unit. One end of the venting pipe is connected to the top of the medium container tank; One end of the drain pipe is connected to the bottom of the medium container tank; One end of the liquid inlet pipe is connected to the top of the medium container tank; One end of the air intake pipe is connected to the top of the medium container tank.

[0007] Furthermore, it also includes testing pipelines; One end of the detection pipeline is connected to the top of the medium container tank, and the other end is sealed; a pressure sensor and a temperature sensor are installed in the middle of the detection pipeline. Both the pressure sensor and the temperature sensor are electrically connected to the central control unit.

[0008] Furthermore, it also includes a sampling framework; The gas tank, medium container, and gas collection pipe are all mounted on the sampling frame.

[0009] Furthermore, it also includes mobile carts; Both the sampling frame and the central control unit are mounted on the mobile trolley. The mobile vehicle is equipped with positioning sensors and obstacle avoidance sensors.

[0010] Furthermore, a connecting frame is provided between the mobile trolley and the sampling frame; A weighing sensor is provided between the adapter frame and the mobile trolley; The weighing sensor is electrically connected to the central control unit.

[0011] Furthermore, each wheel of the mobile trolley is driven by an independent drive motor; Each of the aforementioned drive motors is electrically connected to the central control unit.

[0012] Furthermore, an observation window is provided on the side wall of the medium container.

[0013] Furthermore, one end of the gas collecting pipe is connected to the gas tank via a connecting pipe, and a manual valve is provided between the gas collecting pipe and the connecting pipe; The gas collecting pipe is set horizontally, and the connecting pipe is set vertically.

[0014] The beneficial effects of this invention are: 1. The present invention provides a visual sampler for corrosive media, which is equipped with a gas tank for the medium containing tank. A sampling pipe, a venting pipe, a drain pipe, a liquid inlet pipe, and a gas inlet pipe are set between the medium containing tank and the gas tank. Corresponding triple pneumatic valves are installed on these pipes. By controlling the opening or closing of different triple pneumatic valves through the gas tank and the triple pneumatic valves, the sampling, venting, draining, liquid inlet, and gas inlet are controlled, realizing unmanned operation, improving sampling efficiency, and avoiding harm to personnel.

[0015] 2. The present invention provides a visual sampler for corrosive media, which is also equipped with a central control unit. The central control unit can uniformly control the triple pneumatic valve, the venting triple pneumatic valve, the draining triple pneumatic valve, the inlet triple pneumatic valve, and the air inlet triple pneumatic valve. By setting the opening and closing times of each triple pneumatic valve, the sampling process can be carried out in an orderly manner, avoiding human error.

[0016] 3. The present invention provides a visual sampler for corrosive media, which sets up a detection pipe for the media container and installs a pressure sensor and a temperature sensor on the detection pipe to facilitate real-time monitoring of the pressure and temperature inside the media container.

[0017] 4. The present invention provides a visual sampler for corrosive media, which is also equipped with a mobile trolley for easy movement, enabling large-scale sampling and enhancing the practicality of the sampler.

[0018] 5. The present invention provides a visual sampler for corrosive media, which also includes a transfer frame, a weighing sensor between the transfer frame and the mobile trolley, and a flow sensor on the sampling pipe. The flow sensor and the weighing sensor work together to achieve dual calibration of the sampling amount, making the sampling more accurate.

[0019] 6. The present invention provides a visual sampler for corrosive media, which has an observation window on the side wall of the media container, so that the operator can directly observe the sampling status of the corrosive media in the media container. Attached Figure Description

[0020] Figure 1 This is a side view of an embodiment of a visual sampler for corrosive media according to the present invention; Figure 2 yes Figure 1 A top view of a visual sampler used for corrosive media; Figure 3 This is a cross-sectional view of the medium-containing tank in an embodiment of the present invention; Figure 4 This is a side view of the mobile vehicle in an embodiment of the present invention; Figure 5 This is a side view of the sampling frame in an embodiment of the present invention; Figure 6 This is a top view of the adapter frame in an embodiment of the present invention.

[0021] The attached figures are labeled as follows: 1. Gas tank; 2. Medium container tank; 21. Observation window; 3. Gas collection pipe; 4. Sampling pipe; 41. Sampling triple pneumatic valve; 5. Venting pipe; 51. Venting triple pneumatic valve; 6. Drain pipe; 61. Drain triple pneumatic valve; 7. Inlet pipe; 71. Inlet triple pneumatic valve; 8. Air inlet pipe; 81. Inlet triple pneumatic valve; 82. Check valve; 9. Detection pipe; 10. Central control unit; 11. Sampling frame; 12. Moving trolley; 13. Transfer frame; 14. Weighing sensor; 15. Pressure sensor; 16. Temperature sensor; 17. Connecting pipe; 18. Manual valve. Detailed Implementation

[0022] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides a visual sampler for corrosive media, combined with... Figure 1 and Figure 2 As shown, the visual sampler includes a gas tank 1 for holding high-pressure gas, a medium container 2 for holding corrosive media, a gas collecting pipe 3, a central control unit 10, and so on. Figure 5 The sampling frame 11 shown and as follows Figure 4 The mobile trolley 12 shown.

[0024] Combination Figure 1 and Figure 4 As shown, both the sampling frame 11 and the central control unit 10 are mounted on the mobile trolley 12. Each wheel of the mobile trolley 12 (in this embodiment, corrosion-resistant wheels with a steering mechanism) is driven by an independent drive motor (in this embodiment, a servo motor is used); a connection is provided between the mobile trolley 12 and the sampling frame 11 as shown in the diagram. Figure 6 The adapter frame 13 is shown. A weighing sensor 14 is installed between the adapter frame 13 and the mobile trolley 12. The weighing sensor 14 has a measurement accuracy of not less than ±0.1g and its surface is coated with an anti-corrosion coating to prevent corrosion by the sampling medium. The mobile trolley 12 is equipped with a positioning sensor, which is an infrared positioning sensor installed on the side of the mobile trolley 12. It can accurately identify the sampling point position, achieve millimeter-level positioning, and facilitate switching between different sampling points. An obstacle avoidance sensor can also be installed on the mobile trolley 12. The obstacle avoidance sensor is installed at the front end of the mobile trolley 12 to detect obstacles in the sampling path and prevent the sampler from being damaged by collision.

[0025] Gas tank 1, medium container tank 2, and gas collecting pipe 3 are all mounted on sampling frame 11. For example... Figure 3 As shown, the media container 2 is provided with an observation window 21 on its side wall; in this embodiment, the media container 2 is made of 06Cr19Ni10 and PTFE tempered borosilicate glass, which is used to withstand the corrosion of corrosive media and withstand the sampling pressure, with a pressure rating of not less than 1.6MPa.

[0026] One end of the gas collecting pipe 3 is connected to the gas tank 1 through the connecting pipe 17, and the other end is sealed. The middle part is connected to the medium containing tank 2 by a sampling pipe 4, a gas venting pipe 5, a liquid draining pipe 6, a liquid inlet pipe 7, a gas inlet pipe 8, and a detection pipe 9. A manual valve 18 is provided between the gas collecting pipe 3 and the connecting pipe 17. The gas collecting pipe 3 is set horizontally, and the connecting pipe 17 is set vertically.

[0027] One end of the sampling pipe 4 is connected to the side wall of the medium containing tank 2, and the other end is used for sampling, i.e., the sampling port. A sampling triplet pneumatic valve 41 and a flow sensor are installed in the middle of the pipe. A sampling pump, which is a corrosion-resistant diaphragm pump, is also installed on the sampling pipe 4 to avoid direct contact between the pump body and corrosive media, thus extending its service life. The air inlet of the sampling triplet pneumatic valve 41 is connected to the gas collecting pipe 3. One end of the venting pipe 5 is connected to the top of the medium containing tank 2, and the other end is used for venting, i.e., the vent port. A venting triplet pneumatic valve 51 is installed in the middle of the pipe. The air inlet of the venting triplet pneumatic valve 51 is connected to the gas collecting pipe 3. One end of the draining pipe 6 is connected to the bottom of the medium containing tank 2, and the other end is used for draining, i.e., the drain port. A draining triplet pneumatic valve 61 is installed in the middle of the pipe. The air inlet of the draining triplet pneumatic valve 61 is connected to the gas collecting pipe 3. One end of the liquid inlet pipe 7 is connected to the top of the medium container tank 2, and the other end is used for liquid inlet, i.e., the liquid inlet port. A liquid inlet triple pneumatic valve 71 is installed in the middle of the pipe; the air inlet end of the liquid inlet triple pneumatic valve 71 is connected to the air collection pipe 3. One end of the air inlet pipe 8 is connected to the top of the medium container tank 2, and the other end is used for air inlet, i.e., the air inlet port. A three-way air inlet pneumatic valve 81 is installed in the middle of the pipe, and a one-way valve 82 is installed near the other end. The air inlet end of the three-way air inlet pneumatic valve 81 is connected to the air collection pipe 3. One end of the detection pipe 9 is connected to the top of the medium container tank 2, and the other end is sealed. A pressure sensor 15 and a temperature sensor 16 are installed in the middle of the detection pipe 9.

[0028] The central control unit 10 is the "core brain" of the sampler. It adopts a PLC controller and is electrically connected to the sampling pump, flow sensor, sampling triple pneumatic valve 41, venting triple pneumatic valve 51, draining triple pneumatic valve 61, inlet triple pneumatic valve 71, inlet triple pneumatic valve 81, pressure sensor 15, temperature sensor 16, positioning sensor, various weighing sensors 14, and various drive motors. It is used to control the sampling triple pneumatic valve 41, venting triple pneumatic valve 51, draining triple pneumatic valve 61, inlet triple pneumatic valve 71, inlet triple pneumatic valve 81, and various drive motors. It also displays the data collected by the pressure sensor 15, temperature sensor 16, positioning sensor, and various weighing sensors 14, and then performs calculations and corresponding adjustments to achieve automated and coordinated operation. In this embodiment, the triple pneumatic valve consists of a filter, a solenoid valve, and a ball valve. The central control unit 10 is specifically connected to the solenoid valve to control whether the gas flows. When the solenoid valve is opened, the gas flows. The gas is first filtered by the filter and then passes to the ball valve, thereby opening the entire triple pneumatic valve.

[0029] In this embodiment, the central control unit 10 is also equipped with an alarm module and a monitoring module. When the pressure sensor or temperature sensor detects that the parameters exceed the preset range, or when the weighing sensor detects that the sampling amount exceeds the set value, the alarm module issues an audible and visual alarm signal. The central control unit 10 integrates a wireless communication unit, which can wirelessly connect with a remote terminal to realize remote transmission and remote control of sampling data and monitoring images.

[0030] The core functions of the central control unit 10 include: receiving signals from the positioning sensor, controlling the drive motor and steering mechanism to achieve automatic movement and precise positioning of the sampler; receiving signals from the pressure sensor and temperature sensor to monitor sampling parameters in real time, and controlling the alarm module to issue an audible and visual alarm and stop sampling when the parameters exceed the preset range; receiving signals from the weighing sensor and flow sensor to accurately calculate the sampling volume, and controlling the sampling pump and the sampling triple pneumatic valve 41 to close when the sampling volume reaches the set value, thus completing the sampling; receiving image signals from the high-definition camera in the monitoring module and transmitting them to the display terminal and remote terminal to achieve visual monitoring of the sampling process; and integrating a wireless communication unit to wirelessly connect with remote terminals (such as computers and mobile phones) to achieve remote transmission and remote control of sampling data and monitoring images, facilitating remote control of the sampling process by operators without on-site supervision.

[0031] In use, sampling parameters are first set via a display terminal or remote terminal, including sampling volume, sampling pressure threshold, and sampling point location. After receiving the parameter commands, the central control unit 10 controls the mobile trolley 12 to operate. The drive motor moves the mobile trolley 12 and the sampler on it. The positioning sensor accurately identifies the sampling point location, and the obstacle avoidance sensor avoids obstacles in real time, achieving precise positioning of the mobile trolley 12. After positioning is complete, the central control unit 10 controls the sampling operation, opening the sampling triple pneumatic valve 41 and activating the liquid inlet triple pneumatic valve 71. Corrosive media enters the medium container tank 2 through the inlet. The anti-corrosion material of the inlet and the medium container tank 2 effectively prevents media erosion, and the sealing structure prevents media leakage. During sampling, the monitoring module operates in real time, and a high-definition camera captures sampling images. Force and temperature sensors collect medium parameters, which are displayed in real time on the display terminal. The weighing sensor detects the weight of the sampled medium in real time, and the flow sensor collects flow data, with dual calibration of the sampling volume. When the sampling volume reaches the set value, or the pressure or temperature parameters exceed the preset range, the central control unit 10 promptly controls the liquid inlet triple pneumatic valve 71 and the sampling triple pneumatic valve 41 to close, stopping sampling and triggering the alarm module (if the parameters are abnormal). After sampling is completed, the central control unit 10 controls the mobile trolley 12 to move the sampler to the designated position. The operator can view the sampling image, weighing data, and operating parameters through the display terminal, or obtain relevant data through the remote terminal. After sampling is completed, the liquid drain triple pneumatic valve 61 is opened to drain the residual medium in the medium container tank 2, clean the equipment, and facilitate the next use.

[0032] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present invention should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A visual sampler for corrosive media, characterized in that: It includes a gas tank (1) for holding high-pressure gas, a medium container (2) for holding corrosive media, and a gas collection pipe (3); One end of the gas collecting pipe (3) is connected to the gas tank (1), and the other end is sealed. A sampling pipe (4), a gas venting pipe (5), a liquid draining pipe (6), a liquid inlet pipe (7), and a gas inlet pipe (8) are provided between the middle part of the pipe and the medium container (2). The sampling pipe (4) is connected to the medium container (2) at one end and is used for sampling at the other end. A sampling pump and a sampling triplet pneumatic valve (41) are provided in the middle. One end of the venting pipe (5) is connected to the medium container (2), and the other end is used for venting. A venting triple pneumatic valve (51) is provided in the middle. One end of the drain pipe (6) is connected to the medium container tank (2), and the other end is used for draining. A drain triple pneumatic valve (61) is provided in the middle. One end of the liquid inlet pipe (7) is connected to the medium container tank (2), and the other end is used for liquid inlet. A liquid inlet triple pneumatic valve (71) is provided in the middle. One end of the air intake pipe (8) is connected to the medium container tank (2), and the other end is used for air intake. The middle part is provided with an air intake triple pneumatic valve (81), and a one-way valve (82) is provided near the other end port. The air inlet of the sampling triple pneumatic valve (41), the venting triple pneumatic valve (51), the draining triple pneumatic valve (61), the inlet triple pneumatic valve (71), and the inlet triple pneumatic valve (81) is connected to the gas collecting pipe (3).

2. The visual sampler for corrosive media according to claim 1, characterized in that: It also includes a central control unit (10); The central control unit (10) is electrically connected to the control terminals of the sampling pump, the sampling triple pneumatic valve (41), the venting triple pneumatic valve (51), the draining triple pneumatic valve (61), the inlet triple pneumatic valve (71), and the inlet triple pneumatic valve (81).

3. The visual sampler for corrosive media according to claim 2, characterized in that: One end of the sampling pipe (4) is connected to the side wall of the medium container (2), and a flow sensor is provided in the middle; the flow sensor is electrically connected to the central control unit (10); One end of the venting pipe (5) is connected to the top of the medium container (2); One end of the drain pipe (6) is connected to the bottom of the medium container (2); One end of the liquid inlet pipe (7) is connected to the top of the medium container (2); One end of the air inlet pipe (8) is connected to the top of the medium container (2).

4. The visual sampler for corrosive media according to claim 3, characterized in that: It also includes the detection pipeline (9); One end of the detection pipe (9) is connected to the top of the medium container (2), and the other end is sealed; a pressure sensor (15) and a temperature sensor (16) are provided in the middle of the detection pipe (9). The pressure sensor (15) and temperature sensor (16) are both electrically connected to the central control unit (10).

5. The visual sampler for corrosive media according to any one of claims 2-4, characterized in that: It also includes the sampling frame (11); The gas tank (1), the medium container (2), and the gas collection pipe (3) are all mounted on the sampling frame (11).

6. The visual sampler for corrosive media according to claim 5, characterized in that: It also includes mobile carts (12); The sampling frame (11) and the central control unit (10) are both mounted on the mobile trolley (12); The mobile vehicle (12) is equipped with a positioning sensor and an obstacle avoidance sensor.

7. The visual sampler for corrosive media according to claim 6, characterized in that: A transfer frame (13) is provided between the mobile trolley (12) and the sampling frame (11). A weighing sensor (14) is provided between the adapter frame (13) and the mobile trolley (12). The weighing sensor (14) is electrically connected to the central control unit (10).

8. The visual sampler for corrosive media according to claim 7, characterized in that: Each wheel of the mobile trolley (12) is driven by an independent drive motor; Each of the drive motors is electrically connected to the central control unit (10).

9. The visual sampler for corrosive media according to claim 8, characterized in that: The medium container (2) is provided with an observation window (21) on its side wall.

10. The visual sampler for corrosive media according to claim 9, characterized in that: One end of the gas collecting pipe (3) is connected to the gas tank (1) through the connecting pipe (17), and a manual valve (18) is provided between the gas collecting pipe (3) and the connecting pipe (17). The gas collecting pipe (3) is set horizontally, and the connecting pipe (17) is set vertically.

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