Explosion-proof thermal conductivity gas analyzer

Abstract

The present application relates to gas analysis instrument related technical field, disclose a kind of explosion-proof thermal conductivity gas analyzer, including explosion-proof shell, the inside of explosion-proof shell is equipped with gas analysis component, the outside of gas analysis component is equipped with explosion-proof component;Explosion-proof component includes outer frame, the inside of outer frame is equipped with two first explosion-proof plate sliding, two second explosion-proof plate sliding are equipped between two first explosion-proof plate, multiple buffer components are equipped between the side of second explosion-proof plate and the inside one end wall of outer frame;The present application can utilize explosion-proof component to normally guarantee the normal heat dissipation effect of gas analysis component and when gas analysis component explodes, heat dissipation frame is blocked, prevent the impact force produced by explosion from spreading out through heat dissipation frame, and multiple buffer components and buffer component can be used to cooperate, impact energy is converted into heat energy or other forms of energy, to reduce the pressure peak value transmitted to explosion-proof shell, reduce the damage degree of equipment and personnel outside explosion-proof shell.

Description

Technical Field

[0001] This invention belongs to the technical field of gas analysis instruments, and more specifically, relates to an explosion-proof thermal conductivity gas analyzer. Background Technology

[0002] Currently, gas analyzers are frequently used for gas detection and content measurement. Commonly used types include thermal conductivity gas analyzers, electrochemical gas analyzers, and infrared absorption analyzers. The technical challenges of thermal conductivity gas analyzers lie in high-precision sensing, adaptability to complex environments, explosion-proof safety design, mixed gas analysis, and collaborative optimization of intelligent algorithms. However, existing gas analysis instruments have the following shortcomings: In existing technologies, preventing explosions requires consideration of three essential conditions. Limiting any one of these conditions limits the occurrence of an explosion. The three essential conditions are ignition point, oxidizing gas, and combustible material. Explosion-proof technology is a series of technical measures taken to prevent and control explosions caused by dangerous substances such as combustible gases and dust. High temperature and static electricity are the main causes of explosions. To ensure safety in the production process, explosion-proof components are generally used to prevent explosions of gas analysis components during operation.

[0003] In existing technologies, explosion-proof components typically employ multiple buffering and shock absorption technologies to enhance the buffering effect of explosion-proof panels against explosive impacts. These technologies primarily reduce the harm to equipment and personnel caused by explosions by absorbing explosive impact energy, extending the impact time, dispersing stress concentration, and protecting critical components. However, simply providing explosion buffering is insufficient to reduce the damage caused by explosions and is not conducive to protecting gas analysis components.

[0004] In the prior art, explosion-proof components are usually equipped with heat dissipation vents to ensure the heat dissipation effect of the gas analysis components, prevent the temperature around the gas analysis components from getting too high, and reduce the charge accumulated around the gas analysis components. However, during the explosion, the impact energy generated by the explosion can easily spread out through the heat dissipation vents, posing a hazard to personnel.

[0005] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings to provide an explosion-proof thermal conductivity gas analyzer, in order to achieve a more practical and valuable purpose. Summary of the Invention

[0006] This invention provides an explosion-proof thermal conductivity gas analyzer to overcome the above-mentioned defects in the prior art.

[0007] The purpose and effectiveness of the explosion-proof thermal conductivity gas analyzer of the present invention are achieved by the following specific technical means: An explosion-proof thermal conductivity gas analyzer includes an explosion-proof housing. A gas analysis component is located inside the explosion-proof housing, and an explosion-proof assembly is located outside the gas analysis component. The explosion-proof assembly includes an outer frame. A heat dissipation frame is located on each of the two side walls of the outer frame. Two first explosion-proof plates are symmetrically slidably arranged on both sides of the inner surface of the outer frame. Two second explosion-proof plates are symmetrically slidably arranged between the two first explosion-proof plates. A multi-buffered assembly is located between the two outer frame's outermost side and each of the two outer frame's innermost side walls. Several buffered assemblies are located between the two outer frame's outermost side and each of the two outer frame's innermost side walls. Two sets of adsorption plates are symmetrically slidably arranged vertically inside one end of the heat dissipation frame. Two guide blocks are symmetrically slidably arranged on the inner wall of one end of the heat dissipation frame. A first filter plate and a second filter plate are installed inside the other end of the heat dissipation frame. A third filter plate is vertically slidably arranged in the middle of the inner surface of the heat dissipation frame. A corrugated elastic filter element is located between one side of the first filter plate and one side of the second filter plate. Four pairs of connecting plates are connected between one side of the two second explosion-proof plates and one side of the two first explosion-proof plates.

[0008] In a further technical solution, the lower end of the third filter plate slides in contact with one inclined surface of the guide block, the second filter plate slides in contact with the third filter plate, one end of each of the two sets of adsorption plates slides in contact with one inclined surface of each of the two guide blocks, both ends of the adsorption plates slide vertically in contact with the two side walls of the heat dissipation frame, a first spring is connected between the two ends of the adsorption plates and the two side walls of the heat dissipation frame, one end of each pair of connecting plates is rotatably connected to one side of the second explosion-proof plate, the other end of each pair of connecting plates is rotatably connected to one side of the first explosion-proof plate, two clearance grooves are symmetrically provided on the inner wall of the other end of the heat dissipation frame, and several adsorption plates in the two sets of adsorption plates are staggered.

[0009] In a further technical solution, two symmetrical sliding grooves are provided on the outer wall of one end of the heat dissipation frame. A slider is slidably provided inside each of the two sliding grooves. The two sliders are fixedly connected to the two guide blocks respectively. A second spring is connected between each of the two sliders and one side of the two sliding grooves. The first explosion-proof plate is in sliding contact with the outer wall of the heat dissipation frame.

[0010] In a further technical solution, the multi-buffered assembly includes a first V-shaped buffer and a second V-shaped buffer. The two ends of the first V-shaped buffer are connected to one side of the second explosion-proof plate, the middle part of the first V-shaped buffer is connected to one end wall of the inner side of the outer frame, the two ends of the second V-shaped buffer are respectively connected to the inner walls of the two ends of the first V-shaped buffer, and the middle part of the second V-shaped buffer is connected to one side of the second explosion-proof plate.

[0011] A further technical solution is provided whereby a first elastic airbag is provided between the outer walls of both ends of the first V-shaped buffer and the inner end wall of the outer frame, a second elastic airbag is provided between the interior of the first V-shaped buffer and the interior of the second V-shaped buffer, and a third elastic airbag is provided between the outer walls of both ends of the second V-shaped buffer and one side of the second explosion-proof plate.

[0012] A further technical solution includes a box at each of the upper and lower ends of the outer frame. The box contains two symmetrical partitions, which separate two first air chambers and one second air chamber. Each of the two first air chambers is connected to one of the two first elastic airbags via a first connecting pipe. The second air chamber is connected to the second elastic airbag via a second connecting pipe. Each of the two first elastic airbags is connected to one of the two third elastic airbags via a third connecting pipe. Each of the second elastic airbags is connected to one of the two third elastic airbags via a fourth connecting pipe. The second air chamber is filled with carbon dioxide, and each of the two first air chambers is filled with nitrogen. The second explosion-proof plate has two symmetrical first nozzles, each connected to one of the two third elastic airbags.

[0013] In a further technical solution, the buffer assembly includes a fourth elastic airbag and a movable frame. The fourth elastic airbag is fixed to one side wall of the outer frame, and the movable frame is fixed to one side of the first explosion-proof plate. A plurality of pressure blocks are provided on one side of the fourth elastic airbag, and a V-shaped groove is provided on one side of the movable frame. The V-shaped groove corresponds to the shape of the pressure blocks. A plurality of first elastic protrusions are provided on both sides of the movable frame. A rotating plate is rotatably provided on each side of the pressure block. A plurality of second elastic protrusions are spaced apart on one side of the rotating plate. A fifth connecting pipe is provided between the first air chamber and the fourth elastic airbag, and a second nozzle is provided between the fourth elastic airbag and the clearance groove.

[0014] A further technical solution includes a top block in the middle of the V-groove, a pressure plate fixed at one end of the top block, the pressure plate sliding inside the pressure block, a third spring connecting one side of the pressure plate to the interior of the pressure block, a push rod sliding on each side of the pressure block, the ends of the two push rods approaching each other slidingly contacting the inclined surfaces at both ends of the pressure plate, and the ends of the two push rods moving away from each other contacting the two rotating plates, and a torsion spring at the rotatable connection between the rotating plate and one side wall of the pressure block.

[0015] In a further technical solution, the gas analysis component includes an inner shell, inside which a thermal conductivity sensor and a microprocessor are installed, and on the outer side of the inner shell is a user interface. The thermal conductivity sensor is provided with an air inlet and an air outlet, both of which are connected to the outside of the explosion-proof housing.

[0016] In a further technical solution, the outer side walls of the explosion-proof housing are provided with heat sinks and heat sink boxes, the interiors of the two heat sink frames are respectively connected to the heat sinks and the heat sink boxes, an air pump is installed inside the heat sink boxes, and a cover plate is hinged to one side of the explosion-proof housing, and a viewing window is provided on the cover plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of a first V-shaped buffer and a second V-shaped buffer, the shock wave generated by an explosion of the gas analysis component pushes two second explosion-proof plates away from each other. These two plates then act on two multiple buffer components. The movement of the second explosion-proof plates compresses and deforms the first V-shaped buffer, which absorbs the energy of the explosion shock wave. The deformation of the first V-shaped buffer also compresses and deforms the second V-shaped buffer, which in turn absorbs the energy of the explosion shock wave. Furthermore, the first, second, and third elastic airbags are all elastic, enabling multiple buffering actions to convert the impact energy into heat or other forms of energy, thereby reducing the pressure peak transmitted to the explosion-proof enclosure and minimizing damage to external equipment and personnel. The first, second, and third elastic airbags are then arranged so that the deformation of the first V-shaped buffer compresses the two first elastic airbags, causing nitrogen gas inside the first elastic airbags to be delivered to the two third elastic airbags through two third connecting pipes. Meanwhile, carbon dioxide from the second elastic airbag is delivered to the two third elastic airbags through two fourth connecting pipes, allowing nitrogen and carbon dioxide to mix within the third elastic airbags. The mixed gas within the third elastic airbags is then ejected from the first nozzle to the outside of the gas analysis component. Utilizing the chemical stability of inert gases, which do not participate in combustion reactions, their introduction into the environment reduces the concentration of combustible gases (such as hydrogen and methane) below the lower explosive limit (LEL), thus reducing the severity of an explosion. Furthermore, it isolates oxygen, interrupting the combustion chain reaction and inhibiting flame propagation. Additionally, the inert gas absorbs the heat released by the combustion reaction, lowering the reaction temperature and diluting the reactant concentration, thereby slowing down the chain reaction rate.

[0018] This invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of a first explosion-proof plate, a connecting plate, and a buffer assembly, two second explosion-proof plates are moved away from each other. Four pairs of connecting plates move the two first explosion-proof plates away from each other. The movement of the first explosion-proof plates drives several movable frames to move, which in turn drives several first elastic protrusions to move. The elastic contact between the first and second elastic protrusions provides initial buffering for the movement of the first explosion-proof plates. Furthermore, the movement of the movable frames drives the top block and pressure plate to move, and the pressure plate compression of a third spring provides elastic buffering. The pressure plate movement pushes two push rods away from each other, which in turn drives two rotating plates to rotate away from each other. The rotation of the rotating plates drives the movement of several second elastic protrusions, thereby adjusting the angle of the rotating plates to promote multiple elastic buffering effects between the first and second elastic protrusions. This allows for the use of multiple buffer components in combination to transform instantaneous impacts into slow, gradual releases through multi-stage deformation or phased energy dissipation; and the use of four pairs of connecting plates with multi-stage support or flexible connections to distribute stress over a wider area, avoiding localized overloads.

[0019] This invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of guide blocks, sliders, and adsorption plates, the movement of a first explosion-proof plate pushes two sliders and guide blocks to move. One end of each of the two sets of adsorption plates slides into contact with an inclined surface on one side of the two guide blocks. Under the guidance of the moving guide blocks, the two sets of adsorption plates move closer to each other, thereby increasing the contact area between the two sets of adsorption plates and improving their gas adsorption effect, thus absorbing and treating the toxic gases generated by the explosion. Furthermore, the arrangement of a second and third filter plate involves the movement of guide blocks guiding the lower end of the third filter plate, causing it to slide upwards. This upward movement of the third filter plate misaligns its filter holes with those of the second filter plate. This misalignment of the filter holes in the second and third filter plates blocks the heat dissipation frame, effectively isolating oxygen, interrupting the combustion chain reaction, and buffering the impact force of the explosion, preventing the shock wave from spreading out through the heat dissipation frame. Finally, by setting up the fourth elastic airbag and the second nozzle, the two first explosion-proof plates are moved away from each other, pushing several buffer components to move. The movement of the buffer components compresses the fourth elastic airbag, causing the inert gas inside the fourth elastic airbag to be ejected into the heat sink frame through the second nozzle. The inert gas isolates oxygen inside the heat sink frame, blocks the combustion chain reaction, inhibits flame propagation, and maintains the internal air pressure of the explosion-proof shell slightly higher than the external pressure, preventing flammable gas from seeping in and helping to reduce the damage caused by the explosion. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the first isometric structure of the present invention; Figure 2 This is a schematic diagram of the second isometric structure of the present invention; Figure 3 This is an isometric structural diagram of the explosion-proof component in this invention; Figure 4 This is a first front view schematic diagram of the explosion-proof component in this invention; Figure 5 This is an isometric structural diagram of the gas analysis component in this invention; Figure 6 This is a schematic diagram of the left-side structure of the present invention; Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at point AA; Figure 8 for Figure 7 A magnified schematic diagram of the local structure at point C; Figure 9 for Figure 7 A magnified schematic diagram of the local structure at point D; Figure 10 for Figure 7 A magnified schematic diagram of the local structure at point E; Figure 11 for Figure 10 A magnified schematic diagram of the local structure at point F; Figure 12 This is a second front view schematic diagram of the explosion-proof component in this invention; Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure at point BB.

[0023] Explanation of reference numerals in the attached figures: Explosion-proof housing 10, cover plate 11, viewing window 12, inner shell 13, thermal conductivity sensor 14, microprocessor 15, user interface 16, outer frame 17, heat dissipation frame 18, first explosion-proof plate 19, second explosion-proof plate 20, connecting plate 21, first V-shaped buffer 22, second V-shaped buffer 23, first elastic airbag 24, second elastic airbag 25, third elastic airbag 26, box body 27, partition 28, first air chamber 29, second air chamber 30, fourth elastic airbag 31, movable frame 32, V-groove 33, pressure block 34, first elastic protrusion 35, rotating plate 36, ... Two elastic protrusions 37, top block 38, pressure plate 39, third spring 40, push rod 41, torsion spring 42, adsorption plate 43, first spring 44, guide blocks 45, 46, 47, slider 48, slide groove 49, second spring 50, first filter plate 51, clearance groove 52, second filter plate 53, third filter plate 54, wave-shaped elastic filter element 55, fifth connecting pipe 56, second nozzle 57, first connecting pipe 58, second connecting pipe 59, third connecting pipe 60, fourth connecting pipe 61, first nozzle 62, heat sink 63, heat sink box 64, air inlet 65, air outlet 66. Detailed Implementation

[0024] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0025] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] As attached Figure 1 To be continued Figure 13 As shown: This invention provides an explosion-proof thermal conductivity gas analyzer.

[0028] See attached document Figure 1 To be continued Figure 13 The system includes an explosion-proof housing 10, with a gas analysis component located inside the housing 10, and an explosion-proof component located outside the gas analysis component. The explosion-proof component includes an outer frame 17, with a heat dissipation frame 18 on each of the two side walls of the outer frame 17. Two first explosion-proof plates 19 are symmetrically slidably arranged on both sides of the inner surface of the outer frame 17, and two second explosion-proof plates 20 are symmetrically slidably arranged between the two first explosion-proof plates 19. A multi-buffered assembly is provided between the side of the two second explosion-proof plates 20 that is furthest from each other and the inner end walls of the outer frame 17. The side of the two first explosion-proof plates 19 that is furthest from each other is connected to the outer frame... Several buffer components are provided between the two inner side walls of 17. Two sets of adsorption plates 43 are symmetrically slidably arranged inside one end of the heat dissipation frame 18. Two guide blocks 45 are symmetrically slidably arranged on the inner wall of one end of the heat dissipation frame 18. The first filter plate 51 and the second filter plate 53 are installed inside the other end of the heat dissipation frame 18. The third filter plate 54 is vertically slidably arranged in the middle of the inside of the heat dissipation frame 18. A wave-shaped elastic filter element 55 is provided between one side of the first filter plate 51 and one side of the second filter plate 53. Four pairs of connecting plates 21 are connected between one side of the two second explosion-proof plates 20 and one side of the two first explosion-proof plates 19.

[0029] Preferred options are shown in the appendix. Figure 7 Appendix Figure 9 The lower end of the third filter plate 54 slides in contact with one side of the inclined surface of the guide block 45. The second filter plate 53 slides in contact with the third filter plate 54. One end of each of the two sets of adsorption plates 43 slides in contact with one side of the inclined surface of the two guide blocks 45. The two ends of the adsorption plates 43 slide vertically in contact with the two side walls of the heat dissipation frame 18. A first spring 44 is connected between the two ends of the adsorption plates 43 and the two side walls of the heat dissipation frame 18. One end of each pair of connecting plates 21 is rotatably connected to one side of the second explosion-proof plate 20. The other end of each pair of connecting plates 21 is rotatably connected to one side of the first explosion-proof plate 19. Two clearance grooves 52 are symmetrically arranged on the inner wall of the other end of the heat dissipation frame 18. Several adsorption plates 43 in the two sets of adsorption plates 43 are staggered.

[0030] Preferred options are shown in the appendix. Figure 7 Appendix Figure 9 Two symmetrical grooves 49 are provided on the outer wall of one end of the heat dissipation frame 18. A slider 48 is slidably provided inside the two grooves 49. The two sliders 48 are fixedly connected to two guide blocks 45 respectively. A second spring 50 is connected between the two sliders 48 and one side of the two grooves 49 respectively. The first explosion-proof plate 19 is in sliding contact with the outer wall of the heat dissipation frame 18.

[0031] Preferred options are shown in the appendix. Figure 2 To be continued Figure 4 Appendix Figure 8The multi-buffer assembly includes a first V-shaped buffer 22 and a second V-shaped buffer 23. The two ends of the first V-shaped buffer 22 are connected to one side of the second explosion-proof plate 20, and the middle part of the first V-shaped buffer 22 is connected to one end wall of the inner side of the outer frame 17. The two ends of the second V-shaped buffer 23 are respectively connected to the inner walls of the two ends of the first V-shaped buffer 22, and the middle part of the second V-shaped buffer 23 is connected to one side of the second explosion-proof plate 20.

[0032] Preferred options are shown in the appendix. Figure 2 To be continued Figure 4 Appendix Figure 8 A first elastic airbag 24 is provided between the outer walls of the two ends of the first V-shaped buffer 22 and the inner end wall of the outer frame 17, a second elastic airbag 25 is provided between the interior of the first V-shaped buffer 22 and the interior of the second V-shaped buffer 23, and a third elastic airbag 26 is provided between the outer walls of the two ends of the second V-shaped buffer 23 and one side of the second explosion-proof plate 20.

[0033] Preferred options are shown in the appendix. Figure 7 Appendix Figure 8 The outer frame 17 has a box 27 at its upper and lower ends. The box 27 has two partitions 28 symmetrically arranged inside. The box 27 is divided into two first air chambers 29 and one second air chamber 30 by the two partitions 28. The two first air chambers 29 are connected to the two first elastic airbags 24 by a first connecting pipe 58. The second air chamber 30 is connected to the second elastic airbag 25 by a second connecting pipe 59. The two first elastic airbags 24 are connected to the two third elastic airbags 26 by a third connecting pipe 60. The second elastic airbag 25 is connected to the two third elastic airbags 26 by a fourth connecting pipe 61. The second air chamber 30 is filled with carbon dioxide. The two first air chambers 29 are filled with nitrogen. The second explosion-proof plate 20 has two first nozzles 62 symmetrically arranged on it. The two first nozzles 62 are connected to the two third elastic airbags 26.

[0034] Preferred options are shown in the appendix. Figure 10 Appendix Figure 11 The buffer assembly includes a fourth elastic airbag 31 and a movable frame 32. The fourth elastic airbag 31 is fixed to one side wall of the outer frame 17, and the movable frame 32 is fixed to one side of the first explosion-proof plate 19. A number of pressure blocks 34 are provided on one side of the fourth elastic airbag 31, and a V-shaped groove 33 is provided on one side of the movable frame 32. The V-shaped groove 33 corresponds to the shape of the pressure block 34. A number of first elastic protrusions 35 are provided on both sides of the movable frame 32. A rotating plate 36 is rotatably provided on both sides of the pressure block 34. A number of second elastic protrusions 37 are spaced apart on one side of the rotating plate 36. A fifth connecting pipe 56 is provided between the first air chamber 29 and the fourth elastic airbag 31. A second nozzle 57 is provided between the fourth elastic airbag 31 and the clearance groove 52.

[0035] Preferred options are shown in the appendix. Figure 10 Appendix Figure 11 A top block 38 is provided in the middle of the V-groove 33. A pressure plate 39 is fixedly provided at one end of the top block 38. The pressure plate 39 slides inside the pressure block 34. A third spring 40 is provided between one side of the pressure plate 39 and the inside of the pressure block 34. A push rod 41 is slidably provided on both sides of the pressure block 34. The ends of the two push rods 41 that are close to each other slide in contact with the inclined surfaces at both ends of the pressure plate 39. The ends of the two push rods 41 that are far apart from each other contact with two rotating plates 36. A torsion spring 42 is provided at the rotating connection between the rotating plate 36 and one side wall of the pressure block 34.

[0036] Preferred options are shown in the appendix. Figure 1 Appendix Figure 5 The gas analysis component includes an inner shell 13, inside which a thermal conductivity sensor 14 and a microprocessor 15 are installed. A user interface 16 is installed on the outer side of the inner shell 13. The thermal conductivity sensor 14 is provided with an air inlet 65 and an air outlet 66, both of which are connected to the outside of the explosion-proof housing 10.

[0037] Preferred options are shown in the appendix. Figure 1 Appendix Figure 7 The explosion-proof housing 10 has heat sinks 63 and heat sink boxes 64 on both sides of its exterior. The interiors of the two heat sink frames 18 are connected to the heat sinks 63 and heat sink boxes 64 respectively. An air pump is installed inside the heat sink box 64. A cover plate 11 is hinged to one side of the explosion-proof housing 10. A viewing window 12 is provided on the cover plate 11.

[0038] Specific usage of this invention: For gas analysis, firstly, the gas outside the explosion-proof enclosure 10 is delivered to the thermal conductivity sensor 14 through the air inlet 65. The thermal conductivity sensor 14 determines the composition by measuring the change in the thermal conductivity of the gas. However, the difference in thermal conductivity between different gases may be small (especially in low-concentration gas mixtures), requiring a highly sensitive sensor. Simultaneously, long-term stability is necessary to avoid temperature drift or material aging affecting accuracy. Material selection: The thermistor (such as platinum wire) must be heat-resistant, oxidation-resistant, and the encapsulation material must not undergo chemical reactions in the explosion-proof environment.

[0039] Secondly, the microprocessor 15 executes temperature compensation algorithms and concentration calculations, controls the power of the heating element, and manages data storage and communication; it also performs temperature and pressure compensation. The user interface 16 then displays parameters such as gas concentration, temperature, and pressure in real time.

[0040] Next, the detected gas is discharged through the outlet 66.

[0041] Then, the air pump inside the heat sink 64 is activated, drawing gas from outside the explosion-proof housing 10 into the heat sink 64. The gas inside the heat sink 64 then enters the heat sink frame 18. Multiple filters—first filter plate 51, second filter plate 53, and third filter plate 54—filter the gas for dust, preventing dust from entering the gas analysis component and thus preventing and controlling dust-related explosions. Two sets of adsorption plates 43 further adsorb impurities from the gas, allowing the dry gas to enter the gas analysis component for heat dissipation. The hot gas generated by the gas analysis component is discharged through the heat sink 63, thus cooling the interior of the explosion-proof housing 10 and preventing high temperatures inside. The gas flow within the explosion-proof housing 10 also reduces the charge accumulated around the gas analysis component, preventing explosions caused by high temperatures or static electricity, thereby preventing and controlling the explosion of the gas analysis component.

[0042] Finally, several heat sinks 63 are used to conduct heat and dissipate heat from the explosion-proof housing 10.

[0043] When the gas analysis component explodes, the shock wave generated by the explosion first pushes the two second explosion-proof plates 20 away from each other. The two second explosion-proof plates 20 then act on the two multi-buffered components. The movement of the second explosion-proof plates 20 compresses and deforms the first V-shaped buffer 22, which absorbs the energy of the explosion shock wave. The deformation of the first V-shaped buffer 22 also compresses and deforms the second V-shaped buffer 23, which absorbs the energy of the explosion shock wave. Furthermore, the first elastic airbag 24, the second elastic airbag 25, and the third elastic airbag 26 are all elastic, enabling multiple buffering actions to convert the impact energy into heat energy or other forms of energy, thereby reducing the pressure peak transmitted to the explosion-proof enclosure 10 and reducing the damage to external equipment and personnel.

[0044] Simultaneously, the deformation of the first V-shaped buffer 22 compresses the two first elastic gasbags 24, causing nitrogen gas inside the two first elastic gasbags 24 to be transported to the two third elastic gasbags 26 through the two third connecting pipes 60; and carbon dioxide inside the second elastic gasbag 25 is transported to the two third elastic gasbags 26 through the two fourth connecting pipes 61, thereby mixing nitrogen and carbon dioxide inside the third elastic gasbags 26. The mixed gas inside the third elastic gasbags 26 is then sprayed out to the outside of the gas analysis component through the first nozzle 62. Utilizing the chemical stability of inert gas, which does not participate in combustion reactions, its introduction into the environment can reduce the concentration of combustible gases (such as hydrogen and methane) below the lower explosive limit (LEL), thus reducing the degree of explosion; it also isolates oxygen, interrupts the combustion chain reaction, and inhibits flame propagation: filling a sealed container with inert gas can rapidly reduce the oxygen concentration, causing the flame to extinguish due to lack of oxygen. Preventing reignition: Continuously filling with inert gas after extinguishing the fire can prevent combustible gases from re-contacting with oxygen and causing reignition. Furthermore, inert gases can absorb the heat released by the combustion reaction, lower the reaction temperature, and at the same time dilute the concentration of reactants, thus slowing down the chain reaction rate.

[0045] Next, the two second explosion-proof plates 20 move away from each other, and the movement of four pairs of connecting plates 21 pushes the two first explosion-proof plates 19 away from each other. The movement of the first explosion-proof plates 19 drives the movement of several movable frames 32, which in turn drives the movement of several first elastic protrusions 35. The elastic contact between the first elastic protrusions 35 and the second elastic protrusions 37 provides a buffering effect for the movement of the first explosion-proof plates 19. The movement of the movable frames 32 also drives the top block 38 and the pressure plate 39 to move. The movement of the pressure plate 39 compresses the third spring 40, thus achieving an elastic buffering effect. The movement of the pressure plate 39 pushes the two push rods 41 away from each other, and the movement of the two push rods 41 pushes the two rotating plates 36 away from each other and rotates them. The rotation of the rotating plates 36 drives the movement of several second elastic protrusions 37, thereby adjusting the angle of the rotating plates 36 to promote a multiple elastic buffering effect between the first elastic protrusions 35 and the second elastic protrusions 37. In order to facilitate the use of multiple buffer components in combination with the buffer components to transform instantaneous impact into a slow release over a longer period of time through multi-level deformation or phased energy dissipation; and to use four pairs of connecting plates 21 to distribute stress over a wider range through multi-level support or flexible connection, so as to avoid local overload.

[0046] At the same time, the two first explosion-proof plates 19 move away from each other. The movement of the first explosion-proof plates 19 pushes several buffer components to move. The movement of the buffer components compresses the fourth elastic airbag 31, causing the inert gas in the fourth elastic airbag 31 to be ejected into the heat dissipation frame 18 through the second nozzle 57. The inert gas isolates oxygen from the interior of the heat dissipation frame 18, blocks the combustion chain reaction, inhibits the spread of flame, and keeps the internal air pressure of the explosion-proof shell 10 slightly higher than that of the outside, preventing combustible gas from seeping in.

[0047] Then, the two first explosion-proof plates 19 move away from each other, pushing the two sliders 48 and guide blocks 45 to move. One end of each of the two sets of adsorption plates 43 slides into contact with one inclined side of the two guide blocks 45. Under the guidance of the two guide blocks 45, the two sets of adsorption plates 43 move closer to each other, increasing the contact area between them. This improves the adsorption effect of the two sets of adsorption plates 43 on the gas, thus absorbing and treating the toxic gases produced by the explosion. The guide blocks 45 also guide the lower end of the third filter plate 54, causing it to slide upwards. This upward movement of the third filter plate 54 misaligns its filter holes with those of the second filter plate 53. This misalignment of the filter holes of the second and third filter plates 53 blocks the heat dissipation frame 18, isolating oxygen and interrupting the combustion chain reaction. The second and third filter plates 53 and 54 also buffer and block the impact force of the explosion, preventing the shock wave from spreading out through the heat dissipation frame 18.

[0048] Finally, the explosion-proof components can ensure the normal heat dissipation of the gas analysis components and block the heat dissipation frame 18 in the event of an explosion, preventing the impact force generated by the explosion from spreading out through the heat dissipation frame 18. In addition, the multiple buffer components and the buffer components work together to convert the impact energy into heat energy or other forms of energy, thereby reducing the pressure peak transmitted to the explosion-proof enclosure 10 and reducing the damage to external equipment and personnel of the explosion-proof enclosure 10.

[0049] The present invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of a first V-shaped buffer 22 and a second V-shaped buffer 23, the shock wave generated by the explosion of the gas analysis component pushes two second explosion-proof plates 20 away from each other. These two plates act on two multiple buffer components. The movement of the second explosion-proof plates 20 compresses and deforms the first V-shaped buffer 22, absorbing the energy of the explosion shock wave. The deformation of the first V-shaped buffer 22 also compresses and deforms the second V-shaped buffer 23, which in turn absorbs the energy of the explosion shock wave. Furthermore, the first elastic airbag 24, the second elastic airbag 25, and the third elastic airbag 26 are all elastic, enabling multiple buffering actions to convert the impact energy into heat energy or other forms of energy, thereby reducing the pressure peak transmitted to the explosion-proof enclosure 10 and reducing the degree of damage to external equipment and personnel. Then, through the arrangement of the first elastic airbag 24, the second elastic airbag 25, and the third elastic airbag 26, the deformation of the first V-shaped buffer 22 compresses the two first elastic airbags 24, causing the nitrogen gas inside the two first elastic airbags 24 to be transported to the two third elastic airbags 26 through the two third connecting pipes 60 respectively; and the carbon dioxide inside the second elastic airbag 25 is transported to the two third elastic airbags 26 through the two fourth connecting pipes 61, so that the nitrogen and carbon dioxide are mixed in the third elastic airbags 26. The mixed gas in the third elastic airbags 26 is sprayed out to the outside of the gas analysis component through the first nozzle 62. Utilizing the chemical stability of inert gas, it does not participate in the combustion reaction. By filling it into the environment, the concentration of combustible gases (such as hydrogen and methane) can be reduced to below the lower explosive limit (LEL), thereby reducing the degree of explosion; it also isolates oxygen, blocks the combustion chain reaction, and inhibits flame propagation; and it utilizes the inert gas to absorb the heat released by the combustion reaction, lowering the reaction temperature, while diluting the concentration of reactants and slowing down the chain reaction rate.

[0050] This invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of a first explosion-proof plate 19, a connecting plate 21, and a buffer assembly, two second explosion-proof plates 20 are moved away from each other. The movement of four pairs of connecting plates 21 pushes the two first explosion-proof plates 19 away from each other. The movement of the first explosion-proof plates 19 drives the movement of several movable frames 32, which in turn drives the movement of several first elastic protrusions 35. The elastic contact between the first elastic protrusions 35 and second elastic protrusions 37 provides initial buffering for the movement of the first explosion-proof plates 19. Furthermore, the movement of the movable frames 32 drives the movement of the top block 38 and the pressure plate 39. The movement of the pressure plate 39 compresses the third spring 40, thus achieving elastic buffering. The movement of the pressure plate 39 pushes two push rods 41 away from each other, which in turn drives two rotating plates 36 to rotate away from each other. The rotation of the rotating plates 36 drives the movement of several second elastic protrusions 37, thereby adjusting the angle of the rotating plates 36 to promote multiple elastic buffering effects between the first elastic protrusions 35 and the second elastic protrusions 37. In order to facilitate the use of multiple buffer components in combination with the buffer components to transform instantaneous impact into a slow release over a longer period of time through multi-level deformation or phased energy dissipation; and to use four pairs of connecting plates 21 to distribute stress over a wider range through multi-level support or flexible connection, so as to avoid local overload.

[0051] The present invention discloses an explosion-proof thermal conductivity gas analyzer. Through the arrangement of guide blocks 45, sliders 48, and adsorption plates 43, the first explosion-proof plate 19 moves to push the two sliders 48 and guide blocks 45 to move. One end of each of the two sets of adsorption plates 43 slides into contact with one inclined surface of the two guide blocks 45. Under the guiding action of the two guide blocks 45, the two sets of adsorption plates 43 move closer to each other, thereby increasing the contact area between the two sets of adsorption plates 43. This improves the adsorption effect of the two sets of adsorption plates 43 on the gas, thus absorbing and treating the toxic gases generated by the explosion. With the second filter plate 53 and the third filter plate 54 in place, the guide block 45 moves to guide the lower end of the third filter plate 54, causing the third filter plate 54 to slide upward. The upward movement of the third filter plate 54 causes the filter holes of the third filter plate 54 to be misaligned with the filter holes of the second filter plate 53. The misaligned distribution of the filter holes of the second filter plate 53 and the third filter plate 54 blocks the heat dissipation frame 18, so as to isolate oxygen, block the combustion chain reaction, and the second filter plate 53 and the third filter plate 54 buffer and block the impact force generated by the explosion, preventing the shock wave generated by the explosion from spreading out through the heat dissipation frame 18. Finally, through the arrangement of the fourth elastic airbag 31 and the second nozzle 57, the two first explosion-proof plates 19 are moved away from each other, pushing several buffer components to move. The movement of the buffer components compresses the fourth elastic airbag 31, causing the inert gas inside the fourth elastic airbag 31 to be ejected into the heat sink frame 18 through the second nozzle 57. The inert gas isolates oxygen inside the heat sink frame 18, blocks the combustion chain reaction, inhibits flame propagation, and keeps the internal air pressure of the explosion-proof shell 10 slightly higher than the external pressure, preventing flammable gas from seeping in and helping to reduce the damage caused by the explosion.

[0052] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An explosion-proof thermal conductivity gas analyzer, characterized in that: It includes an explosion-proof housing (10), with a gas analysis component disposed in the middle of the interior of the explosion-proof housing (10), and an explosion-proof component disposed on the exterior of the gas analysis component; The explosion-proof component includes an outer frame (17), with a heat dissipation frame (18) on each of the two side walls of the outer frame (17). Two first explosion-proof plates (19) are symmetrically slidably disposed on both sides of the inner interior of the outer frame (17). Two second explosion-proof plates (20) are symmetrically slidably disposed between the two first explosion-proof plates (19). A multi-buffered assembly is disposed between the side of the two second explosion-proof plates (20) that is far apart from each other and the inner end walls of the outer frame (17). Several buffered assemblies are disposed between the side of the two first explosion-proof plates (19) that is far apart from each other and the inner end walls of the outer frame (17). The heat dissipation frame (18)... Two sets of adsorption plates (43) are symmetrically slidably arranged inside one end of the heat dissipation frame (18). Two guide blocks (45) are symmetrically slidably arranged on the inner wall of one end of the heat dissipation frame (18). A first filter plate (51) and a second filter plate (53) are installed inside the other end of the heat dissipation frame (18). A third filter plate (54) is vertically slidably arranged in the middle of the interior of the heat dissipation frame (18). A wave-shaped elastic filter element (55) is provided between one side of the first filter plate (51) and one side of the second filter plate (53). Four pairs of connecting plates (21) are connected between one side of the two second explosion-proof plates (20) and one side of the two first explosion-proof plates (19).

2. The explosion-proof thermal conductivity gas analyzer according to claim 1, characterized in that: The lower end of the third filter plate (54) slides in contact with one side of the guide block (45), the second filter plate (53) slides in contact with the third filter plate (54), one end of each of the two sets of adsorption plates (43) slides in contact with one side of the two guide blocks (45), the two ends of the adsorption plates (43) slide vertically in contact with the two side walls of the heat dissipation frame (18), a first spring (44) is connected between the two ends of the adsorption plates (43) and the two side walls of the heat dissipation frame (18), one end of each pair of connecting plates (21) is rotatably connected to one side of the second explosion-proof plate (20), the other end of each pair of connecting plates (21) is rotatably connected to one side of the first explosion-proof plate (19), two clearance grooves (52) are symmetrically provided on the inner wall of the other end of the heat dissipation frame (18), and several adsorption plates (43) in the two sets of adsorption plates (43) are staggered.

3. The explosion-proof thermal conductivity gas analyzer according to claim 2, characterized in that: Two sliding grooves (49) are symmetrically arranged on the outer wall of one end of the heat dissipation frame (18). A slider (48) is slidably arranged inside each of the two sliding grooves (49). The two sliders (48) are fixedly connected to the two guide blocks (45). A second spring (50) is connected between each of the two sliders (48) and one side of the two sliding grooves (49). The first explosion-proof plate (19) slides in contact with the outer wall of the heat dissipation frame (18).

4. The explosion-proof thermal conductivity gas analyzer according to claim 2, characterized in that: The multi-buffer assembly includes a first V-shaped buffer (22) and a second V-shaped buffer (23). The two ends of the first V-shaped buffer (22) are connected to one side of the second explosion-proof plate (20). The middle part of the first V-shaped buffer (22) is connected to one end wall of the inner side of the outer frame (17). The two ends of the second V-shaped buffer (23) are respectively connected to the inner walls of the two ends of the first V-shaped buffer (22). The middle part of the second V-shaped buffer (23) is connected to one side of the second explosion-proof plate (20).

5. The explosion-proof thermal conductivity gas analyzer according to claim 4, characterized in that: A first elastic airbag (24) is provided between the outer walls of the two ends of the first V-shaped buffer (22) and the inner end wall of the outer frame (17). A second elastic airbag (25) is provided between the interior of the first V-shaped buffer (22) and the interior of the second V-shaped buffer (23). A third elastic airbag (26) is provided between the outer walls of the two ends of the second V-shaped buffer (23) and one side of the second explosion-proof plate (20).

6. The explosion-proof thermal conductivity gas analyzer according to claim 5, characterized in that: The outer frame (17) has a box (27) at its upper and lower ends respectively. The box (27) has two symmetrical partitions (28) inside. The box (27) is divided by the two partitions (28) into two first air chambers (29) and one second air chamber (30). The two first air chambers (29) are connected to the two first elastic airbags (24) by a first connecting tube (58). The second air chamber (30) is connected to the second elastic airbag (25) by a second connecting tube (59). An elastic airbag (24) is connected to two of the third elastic airbags (26) by a third connecting pipe (60). The second elastic airbag (25) is connected to two of the third elastic airbags (26) by a fourth connecting pipe (61). The second air chamber (30) is filled with carbon dioxide. The two first air chambers (29) are filled with nitrogen. The second explosion-proof plate (20) is symmetrically provided with two first nozzles (62). The two first nozzles (62) are connected to two of the third elastic airbags (26) respectively.

7. The explosion-proof thermal conductivity gas analyzer according to claim 6, characterized in that: The buffer assembly includes a fourth elastic airbag (31) and a movable frame (32). The fourth elastic airbag (31) is fixed to one side wall of the outer frame (17), and the movable frame (32) is fixed to one side of the first explosion-proof plate (19). A plurality of pressure blocks (34) are provided on one side of the fourth elastic airbag (31), and a V-shaped groove (33) is provided on one side of the movable frame (32). The V-shaped groove (33) corresponds to the shape of the pressure block (34). A plurality of first elastic protrusions (35) are provided on both sides of the movable frame (32). A rotating plate (36) is rotatably provided on both sides of the pressure block (34). A plurality of second elastic protrusions (37) are spaced apart on one side of the rotating plate (36). A fifth connecting pipe (56) is provided between the first air chamber (29) and the fourth elastic airbag (31). A second nozzle (57) is provided between the fourth elastic airbag (31) and the clearance groove (52).

8. The explosion-proof thermal conductivity gas analyzer according to claim 7, characterized in that: A top block (38) is provided in the middle of the V-groove (33). A pressure plate (39) is fixedly provided at one end of the top block (38). The pressure plate (39) slides inside the pressure block (34). A third spring (40) is provided between one side of the pressure plate (39) and the inside of the pressure block (34). A push rod (41) is slidably provided on both sides of the pressure block (34). The ends of the two push rods (41) that are close to each other slide in contact with the inclined surfaces of the two ends of the pressure plate (39). The ends of the two push rods (41) that are far apart from each other contact with the two rotating plates (36). A torsion spring (42) is provided at the rotating connection between the rotating plate (36) and one side wall of the pressure block (34).

9. The explosion-proof thermal conductivity gas analyzer according to claim 1, characterized in that: The gas analysis component includes an inner shell (13), inside which a thermal conductivity sensor (14) and a microprocessor (15) are installed. A user interface (16) is installed on the outer side of the inner shell (13). The thermal conductivity sensor (14) is provided with an air inlet (65) and an air outlet (66). Both the air inlet (65) and the air outlet (66) are connected to the outside of the explosion-proof housing (10).

10. The explosion-proof thermal conductivity gas analyzer according to claim 1, characterized in that: The explosion-proof housing (10) has heat sinks (63) and heat sink boxes (64) on its outer sides. The interiors of the two heat sink frames (18) are respectively connected to the heat sinks (63) and the heat sink boxes (64). An air pump is installed inside the heat sink boxes (64). A cover plate (11) is hinged to one side of the explosion-proof housing (10). A viewing window (12) is provided on the cover plate (11).

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