Safe storage device for liquefied oxygen
By adopting a multi-layer flame retardant structure and thermal insulation coating in the liquefied oxygen storage device, combined with the real-time monitoring and alarm functions of gas sensors and displays, the problem of traditional devices lacking fire insulation and real-time monitoring is solved, and safety and stability are significantly improved.
Patent Information
- Application Number
- CN202510457111.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-13
- Publication Date
- 2025-06-20
AI Technical Summary
Traditional liquefied oxygen storage devices lack effective fireproof and thermal insulation measures and real-time monitoring functions, and cannot effectively protect liquefied oxygen. They are prone to abnormal pressure due to rising temperatures and cause safety accidents.
A safe storage device for liquefied oxygen is designed, adopting a double-layer structure of the outer bottle body and the inner bottle body. A multi-layer flame retardant structure and thermal insulation coating are installed in the filling cavity of the outer bottle body, and a gas sensor and a display are installed on the inner wall to realize real-time monitoring and alarm functions.
The device effectively blocks the spread of flame through a multi-layer flame retardant structure, the thermal insulation coating keeps the temperature of the liquefied oxygen stable, and the gas sensor monitors and alarms in a timely manner to ensure safety and reduce the risk of safety accidents caused by temperature.
Smart Images
Figure CN120176004A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of oxygen storage devices, and particularly to a safe storage device for liquefied oxygen. Background Art
[0002] The liquefied oxygen storage device is a commonly used equipment for storing liquid oxygen, generally having a double-layer structure; the inner container is used to contain liquid oxygen, made of stainless steel material, and can withstand low temperature and a certain pressure; the interlayer is filled with heat-insulating materials such as perlite sand and evacuated to reduce heat transfer and lower the vaporization loss of liquid oxygen, while the traditional device still has some defects; Some traditional storage devices may lack effective fireproof and heat-insulating measures. When encountering an external fire source or a large change in ambient temperature, they cannot effectively protect the internal liquefied oxygen, and it is easy to cause abnormal pressure due to temperature rise, leading to safety accidents; at the same time, the traditional storage device does not have a real-time monitoring function and cannot detect safety hazards such as oxygen leakage, abnormal temperature and pressure, and combustible gas leakage in time, which poses a great danger to the users. Therefore, a safe storage device for liquefied oxygen is proposed to solve this problem. Summary of the Invention
[0003] The purpose of the present invention is to provide a safe storage device for liquefied oxygen to solve the problems raised in the above background art.
[0004] To achieve the above purpose, the present invention provides the following technical solution: A safe storage device for liquefied oxygen, including an outer bottle body and an inner bottle body; The outer bottle body has a rhombic cylindrical shape, and the four corners of the outer bottle body are all obtuse-angled; a circular installation groove is opened in the middle of the outer bottle body, and the inner bottle body is arranged in the installation groove; a plurality of locking bolts are equidistantly installed on one side outer wall of the outer bottle body, and the locking bolts extend inward to the installation groove and are in contact with the inner bottle body; A filling cavity is opened in the inner wall of the installation groove, and a flame-retardant layer is filled in the filling cavity. An air-permeable cavity is reserved on the side of the filling cavity close to the installation groove, and air-permeation holes are evenly opened at the position where the air-permeable cavity contacts the installation groove, so that the air-permeable cavity is communicated with the installation groove through the air-permeation holes; A detector installation strip is installed in the air-permeable cavity, and gas sensors are evenly installed on the detector installation strip; the detector installation strip is not provided in the filling cavity where the locking bolt is located.
[0005] Preferably, a rubber base is installed at the bottom of the outer bottle body, and the rubber base has a flat shape.
[0006] Preferably, the inner end of the locking bolt is provided with a friction end head, and the friction end head abuts against the side wall of the inner bottle body to limit the inner bottle body through friction.
[0007] Preferably, a display is embedded and installed on one of the side walls of the outer bottle body, and the display is electrically connected to the detector mounting strip; an alarm horn is provided on the display, and the surface of the display after installation is lower than the surface of the outer bottle body.
[0008] Compared with the prior art, the beneficial effects of the present invention are as follows: The storage device in this solution has a safe and stable structure and has functions of leakage detection and alarm. The cylindrical outer bottle body is paired with rounded corners, which can adapt to various installation environments, is stably placed and reduces the risk of rolling, enhancing the structural stability; the locking bolts and friction ends effectively fix the inner bottle body, and the disassembly is quick; The multi-layer flame-retardant structure of the filling cavity effectively blocks the spread of flames; the heat-insulating coating on the inner wall reflects and isolates heat, ensuring the stable temperature of the liquefied oxygen and preventing safety accidents caused by temperature; The gas sensor monitors the gas leakage situation in real time in all directions; the sensor is linked with the display, which not only intuitively displays the data but also gives an alarm in time when abnormal, ensuring safety. Description of the Drawings
[0009] Figure 1 It is the front view of the present invention; Figure 2 It is the side view of the present invention; Figure 3 It is the sectional view of the present invention.
[0010] In the figure: 1 outer bottle body, 2 installation groove, 3 inner bottle body, 4 locking bolt, 5 rubber base, 6 friction end, 7 filling cavity, 8 ventilation cavity, 9 detector mounting strip. Detailed Embodiments
[0011] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0012] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Embodiment
[0013] Please refer to Figures 1-3, the present invention provides the following technical solution: a safe storage device for liquefied oxygen, comprising an outer bottle body 1 and an inner bottle body 3; The outer bottle body 1 has a rhombic cylindrical shape, and the four corners of the outer bottle body 1 are all blunt-angled; this shape can better adapt to different installation environments while ensuring a certain storage space. Compared with the traditional circular cylinder, it is also very stable when placed on the ground, and the rhombus can reduce the possibility of the bottle body rolling; the design of blunt-angled at the four corners can, on the one hand, avoid safety hazards brought by sharp corners, such as scratching personnel or other equipment during transportation or installation, and on the other hand, improve the stability of the overall structure, preventing the bottle body from being damaged due to stress concentration at the sharp corners when subjected to external force impact; The material of the outer bottle body 1 is selected as high-strength alloy steel, which has good pressure resistance and impact resistance, and can withstand the pressure of the internal liquefied oxygen and various possible impacts from the external environment, ensuring the safety of the storage device; in addition, the surface of the outer bottle body 1 is subjected to anti-corrosion treatment, such as spraying anti-corrosion paint or using electroplating process, to prevent the bottle body from rusting or corroding due to environmental factors (such as humidity, corrosive gases, etc.) during long-term use, thereby affecting its structural strength and service life; A rubber base 5 is installed at the bottom of the outer bottle body 1, and the rubber base 5 has a flat shape; its function is not only to provide support for the outer bottle body 1, but also to play a role in buffering and shock absorption; a circular installation groove 2 is opened in the middle of the outer bottle body 1, and the inner bottle body 3 is arranged in the installation groove 2; A plurality of locking bolts 4 are equidistantly installed on one side outer wall of the outer bottle body 1, and the locking bolts 4 extend inward into the installation groove 2; a friction end 6 is provided at the inner end of the locking bolt 4, and the friction end 6 abuts against the side wall of the inner bottle body 3, thereby restricting the inner bottle body 3 through friction; the function of the locking bolt 4 is to fix and limit the inner bottle body 3, and the locking bolt 4 is provided with an adjustment handle to facilitate the operator to use tools or manually adjust; A filling cavity 7 is opened in the inner wall of the installation groove 2, a flame retardant layer is filled in the filling cavity 7, a ventilation cavity 8 is reserved on the side of the filling cavity 7 close to the installation groove 2, and ventilation holes are evenly opened at the position where the ventilation cavity 8 contacts the installation groove 2, so that the ventilation cavity 8 is communicated with the installation groove 2 through the ventilation holes; The flame retardant layer filled in the filling cavity 7 is a multi-layer structure. First, a layer of fireproof felt is laid, then a certain thickness of fireproof mud or fireproof granular material is filled, and finally a layer of fireproof fiberglass cloth is covered; this multi-layer flame retardant structure can more effectively prevent the spread of fire and improve the protection ability for the internal liquefied oxygen; ensure that when encountering an external fire source, it can provide enough fire protection time for the inner bottle body 3; The inner wall of the filling cavity 7 is provided with a heat insulation coating to further enhance the heat insulation and fire prevention performance; the heat insulation coating is selected as a ceramic heat insulation paint, which can reflect and isolate heat, preventing heat from being transferred to the inner bottle body 3, so as to ensure the temperature stability of the liquefied oxygen in the inner bottle body 3 and prevent safety accidents caused by excessive temperature; A detector mounting strip 9 is installed in the air permeable cavity 8, and gas sensors are evenly installed on the detector mounting strip 9; The detector mounting strip 9 is not provided in the filling cavity 7 where the locking bolt 4 is located; a display is embedded and installed on one side wall of the outer bottle body 1, and the display is electrically connected to the detector mounting strip 9; an alarm horn is provided on the display, and the surface of the display after installation is lower than the surface of the outer bottle body 1; The gas sensors include various types, such as oxygen concentration sensors, temperature sensors, pressure sensors, combustible gas sensors, etc.; the oxygen concentration sensor is used to monitor the concentration of the internal liquefied oxygen in real time, preventing safety problems caused by too high or too low oxygen concentration due to leakage; the temperature sensor can monitor the temperature around the inner bottle body 3 to detect abnormal temperature changes in time; the pressure sensor can monitor the pressure in the inner bottle body 3, and when the pressure exceeds the normal range, it can trigger an alarm; the combustible gas sensor can detect whether there is any leakage of combustible gas around the device to ensure environmental safety; these sensors can adopt high-precision and high-reliability sensor modules and have good anti-interference ability and long-term stability.
[0014] The working principle of this solution: The outer bottle body 1 is designed as a rhombic cylinder. Compared with the traditional circular cylinder, while ensuring the storage space, it can better adapt to different installation environments, be more stable when placed, and reduce the possibility of rolling; the four corners are treated with blunt corners to avoid sharp corners scratching personnel or equipment during transportation or installation, and at the same time improve the overall structural stability to prevent the bottle body from being damaged due to stress concentration at the sharp corners when impacted by external forces; A plurality of locking bolts 4 are equidistantly installed on the outer wall of one side of the outer bottle body 1, which extend inward into the installation groove 2, and the friction end heads 6 at the inner ends abut against the side wall of the inner bottle body 3; in this way, the position of the inner bottle body 3 is restricted by the friction force to realize the fixation and limit of the inner bottle body 3; the locking bolt 4 is provided with an adjustment handle to facilitate the operator to use tools or manually adjust the fixing force; A multi-layer flame retardant structure is adopted in the filling cavity 7 on the inner wall of the installation groove 2. First, a fireproof felt is laid, then fireproof mud or fireproof granular materials are filled, and finally a fireproof fiberglass cloth is covered; this structure can effectively prevent the spread of fire and provide sufficient fire protection time for the inner bottle body 3 when encountering an external fire source; The inner wall of the filling cavity 7 is provided with a ceramic heat insulation paint as the heat insulation coating, which can reflect and isolate heat, prevent heat from being transferred to the inner bottle body 3, ensure the temperature stability of the liquefied oxygen in the inner bottle body 3, and avoid safety accidents caused by excessive temperature; A variety of gas sensors are evenly installed on the detector mounting strip 9 inside the breathable cavity 8, including an oxygen concentration sensor, a temperature sensor, a pressure sensor, a combustible gas sensor, etc.; the oxygen concentration sensor monitors the internal liquid oxygen concentration in real time to prevent safety problems caused by too high or too low oxygen concentration due to leakage; the temperature sensor monitors the temperature around the inner bottle body 3 to detect abnormal temperature changes in time; the pressure sensor monitors the pressure inside the inner bottle body 3, and triggers an alarm when the pressure exceeds the normal range; the combustible gas sensor detects whether there is combustible gas leakage around the device to ensure environmental safety; these sensors adopt high-precision and high-reliability modules, with good anti-interference ability and long-term stability; The display is linked with the alarm horn, and the sensors on the detector mounting strip 9 are electrically connected to the display embedded in the side wall of the outer bottle body 1; the display is equipped with an alarm horn, and its surface is lower than the surface of the outer bottle body 1 after installation to prevent damage; the sensors transmit the monitoring data to the display, and once the monitoring data is abnormal, the display controls the alarm horn to sound an alarm to remind the operator to deal with it in time and ensure the safe operation of the device; The display is equipped with a detachable battery, and the battery provides power for the detection sensors; the electrical signals (usually analog signals) collected by these sensors are transmitted to the signal processing circuit inside the display through a wired connection method (such as a shielded cable); the shielded cable can effectively reduce external electromagnetic interference and ensure the accuracy of signal transmission; during the transmission of the analog signal, certain attenuation may occur due to factors such as line loss, so a signal amplifier may be set in the transmission line to amplify the signal to ensure that the signal strength meets the requirements of subsequent processing The signal processing circuit inside the display first converts the received analog signal into a digital signal through an analog-to-digital converter (ADC); the analog-to-digital converter can convert the continuously changing analog quantity into discrete digital quantities according to a certain quantization accuracy, which is convenient for subsequent digital circuits to process; The converted digital signal is transmitted to the microprocessor (MCU) or digital signal processor (DSP) inside the display; these processors process and analyze the digital signal according to the preset algorithms and programs; for example, compare the values collected by the sensors with the preset normal range to determine whether the current monitoring parameters are in a normal state; if the signal value transmitted by the oxygen concentration sensor exceeds the normal oxygen concentration range, the processor will identify this as an abnormal situation; The processed and analyzed data is presented to the user in an intuitive manner by the processor controlling the display; when the processor determines that the data of one or more sensors exceeds the normal range, an alarm mechanism is triggered; the processor sends a control signal to the drive circuit of the alarm horn to drive the alarm horn to emit a sound alarm; for example, when the pressure sensor detects that the pressure inside the inner bottle exceeds the safety upper limit, the processor immediately sends a high-level signal to the drive circuit of the alarm horn to drive the alarm horn to emit a loud alarm sound, reminding the operator of potential danger and the need to take corresponding measures in a timely manner.
[0015] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms; therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.
[0016] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A safe storage device for liquefied oxygen, comprising an outer bottle (1) and an inner bottle (3), characterized in that: The outer bottle body (1) is in the shape of a prismatic cylinder, and the four corners of the outer bottle body (1) are obtuse; a circular mounting groove (2) is provided in the middle of the outer bottle body (1), and the inner bottle body (3) is arranged in the mounting groove (2); a plurality of locking bolts (4) are equidistantly installed on the outer wall of one side of the outer bottle body (1), and the locking bolts (4) extend inwardly into the mounting groove (2) and contact the inner bottle body (3); A filling cavity (7) is provided in the inner wall of the installation groove (2), and a flame retardant layer is filled in the filling cavity (7). A ventilation cavity (8) is reserved on one side of the filling cavity (7) close to the installation groove (2), and ventilation holes are evenly provided at the position where the ventilation cavity (8) contacts the installation groove (2), so that the ventilation cavity (8) and the installation groove (2) are connected to each other through the ventilation holes; A detector mounting strip (9) is installed in the air permeable cavity (8), and gas sensors are evenly installed on the detector mounting strip (9); no detector mounting strip (9) is provided in the filling cavity (7) where the locking bolt (4) is located.
2. A safe storage device for liquefied oxygen according to claim 1, characterized in that: A rubber base (5) is installed at the bottom of the outer bottle body (1), and the rubber base (5) is flat in shape.
3. A safe storage device for liquefied oxygen according to claim 1, characterized in that: The inner end of the locking bolt (4) is provided with a friction end head (6), and the friction end head (6) abuts against the side wall of the inner bottle body (3), thereby restricting the inner bottle body (3) through friction.
4. A safe storage device for liquefied oxygen according to claim 1, characterized in that: A display is embedded in one of the side walls of the outer bottle body (1), and the display is electrically connected to the detector mounting strip (9); the display is provided with an alarm horn, and the surface of the display after installation is lower than the surface of the outer bottle body (1).