Visual content detection device for carbon dioxide storage steel cylinder
By installing a support frame on a dual-valve cylinder and using a pressure sensor and LED light strip to visualize the gas content, the cumbersome pressure detection method in the prior art is solved, and rapid and accurate gas content measurement is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-04-03
AI Technical Summary
Existing methods for detecting gas content in dual-valve gas cylinders mainly rely on pressure testing, which is cumbersome and unsuitable for sample gases that frequently undergo quality changes.
A support frame is used to mount a dual-valve steel cylinder. Multiple accommodating cavities are set around the support frame, and pressure support pads and display support pads are embedded therein. A pressure sensor is set on the pressure support pad, and an LED light strip is set on the display support pad. The gas content is quickly measured by weight detection method, and the pressure sensor and LED light strip are connected by electrical signals to achieve visual display.
It enables rapid and accurate measurement of gas content in dual-valve cylinders, avoiding the cumbersome process of pressure testing, and is suitable for sample gases with frequent quality changes, thus improving work efficiency and measurement accuracy.
Smart Images

Figure CN224081418U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon dioxide production technology, and more specifically, to a visual content detection device for carbon dioxide storage cylinders. Background Technology
[0002] During carbon dioxide production, carbon dioxide samples need to be collected and stored for subsequent product traceability. Dual-valve cylinders are typically used to store carbon dioxide. These cylinders are usually made of high-strength, corrosion-resistant special steel or aluminum alloy to ensure safe storage and transportation of the gas. Dual-valve cylinders are portable, refillable pressure vessels. The nominal working pressure of a carbon dioxide cylinder is generally 15 MPa, and the hydrostatic test pressure is 22.5 MPa. After multiple sample tests, the gas content inside the dual-valve cylinder remains unknown. Existing methods for detecting the gas content in dual-valve cylinders primarily rely on pressure testing. This method infers the gas content by measuring the pressure inside the cylinder. However, the pressure testing process is cumbersome and unsuitable for measuring samples with frequent quality changes. Therefore, it is necessary to develop a device capable of rapidly measuring the gas content inside dual-valve cylinders. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a visual content detection device for carbon dioxide storage cylinders, aiming to provide a device capable of rapidly measuring the gas content inside dual-valve cylinders.
[0004] A visual content detection device for carbon dioxide storage cylinders according to an embodiment of the present invention includes:
[0005] A support frame is fitted onto a dual-valve steel cylinder; the support frame has n receiving cavities on its periphery; n≥3;
[0006] A pressure support pad is embedded in any one of the receiving cavities; a pressure sensor is provided on the side of the pressure support pad near the support frame;
[0007] The display support pad is embedded in another of the receiving cavities; an LED light strip is provided on the side of the display support pad away from the support frame, and the pressure sensor and the LED light strip are electrically connected.
[0008] A filling support pad is provided, and n-2 filling support pads are provided, and the filling support pads are embedded in the remaining receiving cavities.
[0009] According to some embodiments of the present invention, the outer contour of the support frame is a regular n-gon; the receiving cavities are respectively disposed on the outer periphery of the support frame.
[0010] According to some embodiments of the present invention, the outer contour of the support frame is a regular hexagon.
[0011] According to some embodiments of the present invention, a battery slot is provided on the pressure support pad, and a power source is provided in the battery slot; the power source is used to supply power to the pressure sensor and the LED light strip.
[0012] According to some embodiments of the present invention, a limiting spring is provided on the battery slot.
[0013] According to some embodiments of the present invention, the support frame is provided with a boss corresponding to the pressure sensor, and the boss can abut against the pressure sensor when the pressure support pad is compressed.
[0014] According to some embodiments of this utility model, the pressure sensor is a piezoelectric ceramic sensing sheet.
[0015] According to some embodiments of the present invention, the support frame is provided with limiting posts between adjacent receiving cavities.
[0016] According to some embodiments of the present invention, wiring grooves are provided on the inner circumferential sides of the pressure support pad, the display support pad, and the filling support pad.
[0017] According to some embodiments of the present invention, the filling support pad is made of an elastic material.
[0018] A visual content detection device for carbon dioxide storage cylinders according to an embodiment of the present invention has at least the following beneficial effects:
[0019] According to the present invention, a visual content detection device for carbon dioxide storage cylinders includes a support frame. The support frame is fitted onto a dual-valve cylinder, and multiple receiving cavities are arranged around the periphery of the support frame. A pressure support pad, a display support pad, and a filling support pad are respectively embedded in the receiving cavities. A pressure sensor is arranged on the side of the pressure support pad closest to the support frame. An LED light strip is arranged on the side of the display support pad furthest from the support frame. The pressure sensor and the LED light strip are electrically connected. Under normal conditions, the side of the support frame with the filling support pad faces the worktable, and the LED light strip and pressure sensor are in a dormant state. During sampling, the dual-valve cylinder is rotated, and the side of the support frame with the pressure support pad faces the worktable. At this time, the pressure sensor collects the weight information of the dual-valve cylinder and transmits the weight information to the LED light strip, thereby enabling the operator to quickly obtain the gas content inside the dual-valve cylinder. In this embodiment, the weight of the gas is calculated by measuring the weight change of the cylinder before and after filling with gas using a weight detection method, and then the volume or amount of gas is calculated based on the gas density. This structure is designed to quickly measure the gas content inside a dual-valve cylinder. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of an installation structure according to the present invention;
[0021] Figure 2 This is a schematic diagram of the structure of this utility model;
[0022] Figure 3 This is a schematic diagram of an exploded structure of the present invention;
[0023] Figure 4 This is a schematic diagram of the structure of the pressure support pad of this utility model;
[0024] Figure 5 This is an enlarged schematic diagram of a partial structure of this utility model.
[0025] In the picture:
[0026] 100-Support frame, 110-Receiving cavity, 120-Boss, 130-Limiting post;
[0027] 200-Pressure support pad, 210-Pressure sensor, 220-Battery slot, 221-Limiting spring, 230-Power supply;
[0028] 300 - Display support pad; 310 - LED light strip;
[0029] 400 - Filler support pad, 410 - Wiring channel;
[0030] 500-Double Valve Cylinder. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, etc., are based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.
[0033] In the description of this utility model, "multiple" refers to two or more. The use of "first" and "second" is for distinguishing technical features only and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features or their sequential relationship.
[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0035] Reference Figures 1 to 5As shown, this utility model discloses a visual content detection device for carbon dioxide storage cylinders, including a support frame 100, a pressure support pad 200, a display support pad 300, and a filling support pad 400. The support frame 100 is fitted onto a dual-valve cylinder 500; n accommodating cavities 110 are provided around the periphery of the support frame 100; n≥3; in this embodiment, at least 3 accommodating cavities 110 are provided. The pressure support pad 200 is embedded in any one of the accommodating cavities 110; a pressure sensor 210 is provided on the side of the pressure support pad 200 closest to the support frame 100; the display support pad 300 is embedded in another accommodating cavity 110; an LED light strip 310 is provided on the side of the display support pad 300 furthest from the support frame 100, and the pressure sensor 210 and the LED light strip 310 are electrically connected; n-2 filling support pads 400 are provided, in this embodiment, at least one filling support pad 400 is provided, and the filling support pads 400 are embedded in the remaining accommodating cavities 110. Specifically, in this embodiment, under normal conditions, the side of the support frame 100 with the filling support pad 400 is placed facing the workbench. At this time, both the LED light strip 310 and the pressure sensor 210 are in a dormant state, and the device does not perform detection work. During sampling, the dual-valve cylinder 500 is rotated so that the side of the support frame 100 with the pressure support pad 200 faces the workbench. The pressure sensor 210 collects the weight information of the dual-valve cylinder 500. Here, the weight detection method is used, that is, the weight of the gas is calculated by measuring the weight change of the cylinder before and after filling with gas, and then the volume or amount of gas is calculated based on the gas density. The pressure sensor 210 transmits the collected weight information to the LED light strip 310, which presents the relevant information in a visual manner, allowing the operator to quickly obtain the gas content inside the dual-valve cylinder 500. Compared with the traditional pressure detection method, this device can quickly measure the gas content inside the dual-valve cylinder 500, avoiding the cumbersome measurement process of the pressure detection method and meeting the need for rapid acquisition of gas content information. The gas content information is displayed via LED light strips 310, providing operators with an intuitive and visual understanding of the gas content within the dual-valve cylinder 500, thus improving work efficiency. Addressing the issue that pressure detection methods are unsuitable for measuring sample gases with frequent mass changes, this device employs a weight-based detection method, which effectively handles this situation and has broader applicability.
[0036] In this embodiment, the LED light strip 310 can be an LED with an integrated control module. The LED light strip 310 can be a colored light strip. The weight information is transmitted to the LED light strip 310 through the pressure sensor 210. The LED light strip 310 is controlled to display different colors according to different weight information. For example, it is displayed as blue when the gas content is 0% to 20%, as green when it is 21% to 50%, as yellow when it is 51% to 80%, and as red when it is 81% to 100%.
[0037] In this embodiment, the LED light strip 310 can be an LED with an integrated control module, and the LED light strip 310 can be a digital display LED. The pressure sensor 210 is a high-precision piezoelectric pressure sensor, which directly displays the gas content in the dual-valve cylinder 500 through a digital display.
[0038] In some embodiments of this utility model, the outer contour of the support frame 100 is a regular n-gon; the receiving cavities 110 are respectively disposed on the outer periphery of the support frame 100. Specifically, in this embodiment, the outer contour of the support frame 100 is a regular n-gon and the receiving cavities 110 are disposed on its outer periphery. This structural design constructs a regular and stable structural foundation. When the device is fitted onto the dual-valve cylinder 500, the positions of each receiving cavity 110 are relatively fixed and evenly distributed. The receiving cavity 110 where the pressure support pad 200 is located can be accurately positioned, enabling the pressure sensor 210 to stably collect the weight information of the dual-valve cylinder 500. Because the regular polygonal structure ensures the stability and consistency of the contact between the pressure support pad 200 and the cylinder, it ensures that the data acquired by the pressure sensor 210 is accurate and reliable. The collected weight information is transmitted via electrical signal to the LED light strip 310 on the display support pad 300, which is also located in the receiving cavity 110 on the outer periphery, to realize the visualization of the gas content. In addition, the regular polygonal structure can prevent the dual-valve cylinder 500 from rotating when placed horizontally.
[0039] In some embodiments of this invention, the outer contour of the support frame 100 is a regular hexagon. Specifically, in this embodiment, the pressure support pad 200 and the display support pad 300 are respectively disposed on opposite sides of the support frame 100, and the filling support pad 400 is distributed in other receiving cavities 110. The regular hexagonal structure itself has high stability, preventing the cylinder from rotating while providing stable support for the entire detection device. It can better withstand the weight of the cylinder and various forces that may be applied externally, reducing the risk of damage to the device due to shaking or instability and extending the service life of the device.
[0040] In some embodiments of this utility model, a battery slot 220 is provided on the pressure support pad 200, and a power supply 230 is provided in the battery slot 220; the power supply 230 is used to power the pressure sensor 210 and the LED light strip 310. Specifically, in this embodiment, the power supply 230 is a 5V button battery. The pressure support pad 200 is specially provided with a battery slot 220, and the power supply 230 is placed in the battery slot 220. The pressure sensor 210 is responsible for collecting the weight information of the dual-valve cylinder 500. Its normal operation requires electrical power. The power supply 230 delivers electrical power to the pressure sensor 210 through a circuit connection, enabling it to continuously and stably sense changes in the weight of the cylinder and convert them into electrical signals. At the same time, the LED light strip 310 is used to present the information collected by the pressure sensor 210 in a visual form, and it also relies on the electrical power provided by the power supply 230 to emit light. The setting of the battery slot 220 facilitates the replacement and maintenance of the power supply 230. When the power supply 230 is low on power or malfunctions, staff can directly open the battery slot 220 to replace the battery. The operation is simple and quick, which can quickly restore the normal operation of the device, reduce equipment downtime caused by power supply problems, and improve work efficiency.
[0041] In some embodiments of this utility model, a limiting spring 221 is provided on the battery compartment 220. Specifically, in this embodiment, the limiting spring 221 effectively prevents the power supply 230 from shaking or shifting within the battery compartment 220. In practical applications, the device may face various complex working environments, such as bumps during transportation and vibrations during on-site operation. The presence of the limiting spring 221 allows the device to better adapt to these complex environments, ensuring stable installation of the power supply 230 even under harsh conditions, reducing the impact of environmental factors on the power supply system, and expanding the applicability of the device.
[0042] In some embodiments of this utility model, the support frame 100 is provided with a boss 120 corresponding to the pressure sensor 210. When the pressure support pad 200 is under pressure, the boss 120 can abut against the pressure sensor 210. Specifically, in this embodiment, the boss 120 can abut against the pressure sensor 210. The design of the boss 120 ensures that the pressure on the pressure support pad 200 can be accurately transmitted to the pressure sensor 210, so that the pressure sensor 210 can accurately sense the pressure applied by the dual-valve cylinder 500 and convert it into an electrical signal. In this embodiment, the boss 120 can be made of a relatively hard material, such as plastic.
[0043] In some embodiments of this invention, the pressure sensor 210 is a piezoelectric ceramic sensing sheet. Specifically, in this embodiment, the piezoelectric ceramic sensing sheet has good physical and chemical stability, and can maintain stable performance under a wide range of environmental conditions such as temperature and humidity. In different working environments, it can reliably convert pressure into an electrical signal, ensuring long-term stable operation of the detection device and reducing measurement errors and malfunctions caused by environmental factors. The piezoelectric ceramic sensing sheet, as the pressure sensor 210, utilizes the piezoelectric effect of the piezoelectric ceramic material. When the pressure support pad 200 is subjected to pressure from the dual-valve cylinder 500, the pressure is accurately transmitted to the piezoelectric ceramic sensing sheet through the boss 120. When the piezoelectric ceramic material undergoes mechanical deformation under external force, internal polarization occurs, resulting in charge accumulation on its surface, which generates an electrical signal proportional to the pressure magnitude. This electrical signal, after subsequent processing, is transmitted to the LED light strip 310 on the display support pad 300 for visual display of gas content.
[0044] In some embodiments of this utility model, the support frame 100 is provided with limiting posts 130 between adjacent receiving cavities 110. Specifically, in this embodiment, the support frame 100 is provided with limiting posts 130 between adjacent receiving cavities 110, and the pressure support pad 200, display support pad 300 and filling support pad 400 are respectively interference-fitted with the receiving cavity 110.
[0045] In some embodiments of this invention, wiring grooves 410 are provided on the inner circumference of the pressure support pad 200, the display support pad 300, and the filling support pad 400. Specifically, in this embodiment, the electrical signal collected by the pressure sensor 210 needs to be transmitted through lines to the LED light strip 310 on the display support pad 300 for visualization. Simultaneously, there may be other control lines inside the device. The wiring grooves 410 provide dedicated channels for these lines, allowing them to be neatly arranged along the grooves, extending from one support pad to another, ensuring smooth transmission of electrical signals and separating different lines to avoid mutual interference.
[0046] In some embodiments of this invention, the filler support pad 400 is made of an elastic material. Specifically, in this embodiment, during use of the device, the dual-valve cylinder 500 may be subjected to vibration or impact. The elastic material filler support pad 400 can act as a buffer and shock absorber, absorbing and dispersing these external forces, reducing the impact on the pressure sensor 210, the display support pad 300, and the entire detection system, protecting internal components from damage, and extending the service life of the device. The elastic material can be synthetic rubber or silicone rubber.
[0047] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A visual content detection device for carbon dioxide storage cylinders, characterized in that, include: A support frame (100) is sleeved on a double-valve steel cylinder (500); the support frame (100) has n receiving cavities (110) on its periphery; n≥3; A pressure support pad (200) is embedded in any one of the receiving cavities (110); a pressure sensor (210) is provided on the side of the pressure support pad (200) near the support frame (100); The display support pad (300) is embedded in another of the receiving cavities (110); an LED light strip (310) is provided on the side of the display support pad (300) away from the support frame (100), and the pressure sensor (210) and the LED light strip (310) are electrically connected; A filling support pad (400) is provided, and n-2 filling support pads (400) are provided, and the filling support pads (400) are embedded in the remaining receiving cavities (110).
2. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, The outer contour of the support frame (100) is a regular n-sided polygon; the receiving cavities (110) are respectively arranged on the outer periphery of the support frame (100).
3. The visual content detection device for carbon dioxide storage cylinders according to claim 2, characterized in that, The outer contour of the support frame (100) is a regular hexagon.
4. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, A battery slot (220) is provided on the pressure support pad (200), and a power supply (230) is provided in the battery slot (220); the power supply (230) is used to supply power to the pressure sensor (210) and the LED light strip (310).
5. The visual content detection device for carbon dioxide storage cylinders according to claim 4, characterized in that, A limiting spring (221) is provided on the battery compartment (220).
6. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, The support frame (100) is provided with a boss (120) corresponding to the pressure sensor (210). When the pressure support pad (200) is compressed, the boss (120) can abut against the pressure sensor (210).
7. The visual content detection device for carbon dioxide storage cylinders according to claim 6, characterized in that, The pressure sensor (210) is a piezoelectric ceramic sensor.
8. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, The support frame (100) is provided with limiting posts (130) between adjacent receiving cavities (110).
9. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, Wiring grooves (410) are provided on the inner periphery of the pressure support pad (200), the display support pad (300), and the filling support pad (400).
10. The visual content detection device for carbon dioxide storage cylinders according to claim 1, characterized in that, The filling support pad (400) is made of an elastic material.