Pressure relief type explosion-proof device for methanol storage

Abstract

The invention discloses a pressure relief type explosion-proof device for methanol storage, belongs to the technical field of methanol pressure relief and explosion prevention, and aims to solve the problems that an existing pressure relief type explosion-proof structure for methanol storage cannot relieve explosion pressure and cannot absorb methanol steam in the explosion process. The device comprises an explosion-proof shell and a methanol storage tank arranged in an inner cavity of the explosion-proof shell, a first absorption assembly is fixedly arranged on the top face of the explosion-proof shell, a plurality of second absorption assemblies are arranged on the side wall of the inner cavity of the explosion-proof shell, water collecting tanks are arranged on the two sides of the explosion-proof shell correspondingly, and the explosion-proof shell communicates with the water collecting tanks through a plurality of pressure relief assemblies; by means of the explosion-proof device, secondary pressure relief of explosion impact force can be achieved, pressure can be applied to water through explosion pressure, methanol steam in the explosion-proof shell can be cooled, the methanol steam in the explosion process can be absorbed, and the explosion-proof device can be used for absorbing the methanol steam in the explosion process. And the dissipation amount of methanol steam in the explosion process is effectively reduced.

Description

Technical Field

[0001] This invention relates to the field of methanol pressure relief and explosion prevention technology, specifically to a pressure relief explosion prevention device for methanol storage. Background Technology

[0002] Methanol is an organic compound that is colorless, volatile, and flammable. Methanol should be stored away from fire and heat sources, and the storage temperature should be kept below 37°C. Methanol is highly toxic, and any leak can cause serious harm to surrounding organisms and the environment. Therefore, explosion-proof devices are required during methanol storage to prevent methanol leaks and explosions.

[0003] Chinese patent CN220702112U discloses a pressure-relief explosion-proof structure for methanol storage, including a support platform. A frame plate is fixedly connected to the top of the support platform, and a cover and a storage tank are fixedly connected to the top of the frame plate. The storage tank is located inside the cover. Support frame one and support frame two are fixedly connected to the top of the support platform. A pressure relief and diversion assembly is provided on the top of the support platform. The pressure relief and diversion assembly includes a sleeve and a connecting cylinder, which are respectively fixedly installed on the top of support frame one and support frame two. A main pipe and a diversion pipe are connected to one side of the storage tank, and one end of the main pipe is connected to the connecting cylinder. This prior art can enable the tank to adaptively adjust the internal pressure, thereby avoiding the problems of tank deformation and explosion.

[0004] The aforementioned prior art discloses a pressure-relief explosion-proof structure for methanol storage that can regulate the internal pressure of the methanol storage tank to prevent explosions caused by excessively high methanol vapor concentrations. However, if external temperature factors or other factors cause excessive fluctuations in the vapor pressure inside the tank, exceeding the regulation range of the aforementioned pressure-relief explosion-proof structure, the methanol storage tank may still explode. In the event of an explosion, the aforementioned pressure-relief explosion-proof structure fails to: 1) intercept explosive fragments, potentially causing damage to surrounding equipment and casualties; 2) relieve the explosion pressure, failing to reduce the explosion damage; and 3) intercept and absorb the large amount of methanol vapor generated during the explosion, causing serious harm to the surrounding environment and organisms.

[0005] To address the above issues, a pressure relief explosion-proof device for methanol storage is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a pressure relief explosion-proof device for methanol storage. By using this device, the problems of the aforementioned pressure relief explosion-proof structures for methanol storage, which are unable to intercept explosive fragments and cannot relieve explosion pressure, thus failing to reduce explosion damage, are solved. In addition, the invention also solves the problem that the aforementioned pressure relief explosion-proof structures for methanol storage are unable to intercept and absorb the large amount of methanol vapor generated during the explosion.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a pressure-relief explosion-proof device for methanol storage, comprising an explosion-proof shell and a methanol storage tank disposed within the inner cavity of the explosion-proof shell, a breather valve being connected to the methanol storage tank, a first absorption component being fixedly disposed on the top surface of the explosion-proof shell, the upper end of the breather valve penetrating through the top surface of the explosion-proof shell and disposed inside the first absorption component, a plurality of second absorption components being disposed on the side wall of the inner cavity of the explosion-proof shell, water collection tanks being disposed on both sides of the explosion-proof shell, the explosion-proof shell and the water collection tanks being connected through a plurality of pressure-relief components, a water spray component being fixedly disposed on the top surface of the water collection tanks, and the water spray component being connected to the water collection tanks through a water pipe.

[0008] Furthermore, the explosion-proof enclosure includes an outer shell, one end of which is rotatably fitted with a sealing door.

[0009] Furthermore, the first absorption component includes a mounting shell fixedly installed on the top surface of the outer casing. A groove is provided on the top of the mounting shell, and a sealing plate is slidably installed inside the groove. A push-pull rod is fixedly installed on the bottom surface of the sealing plate. Irregularly shaped connecting rods are fixedly installed on the outer walls of both sides of the push-pull rod. Several first holding boxes are fixedly installed on the inner walls of both sides of the inner cavity of the mounting shell. A sliding cover is slidably installed at the upper opening of the first holding box. The ends of the irregularly shaped connecting rods are fixedly connected to the sliding covers. A methanol gas detector alarm is also fixedly installed on the side wall of the inner cavity of the mounting shell. An electric telescopic column is also provided on the side of the mounting shell. The output end of the electric telescopic column is fixedly connected to the push-pull rod, and the electric telescopic column is fixedly installed on the top surface of the outer casing by a mounting bracket.

[0010] Furthermore, the first container contains a substance capable of absorbing methanol vapor.

[0011] Furthermore, the water collection tank includes a tank body, a push plate is slidably installed inside the tank body, the side wall of the push plate is elastically connected to the side wall of the inner cavity of the tank body by a first spring, a water storage cavity is formed between the push plate and the tank body, and a water inlet is fixedly installed on the top surface of the tank body, and the water inlet is connected to the water storage cavity.

[0012] Furthermore, the pressure relief assembly includes a connecting pipe, through which the inner cavity of the explosion-proof shell and the inner cavity of the tank are connected. A primary rod is slidably installed through the connecting pipe, and one end of the primary rod is fixedly connected to a push plate. A slide is provided inside the primary rod, and a secondary rod is slidably installed inside the slide. The side wall of the secondary rod and the side wall of the slide cavity are elastically connected by a second spring.

[0013] Furthermore, the water spray assembly includes a buffer chamber fixedly installed on the top surface of the tank, and several water outlet pipes are fixedly installed on the top surface of the buffer chamber, with spray heads fixedly installed at the water outlet ends of the water outlet pipes.

[0014] Furthermore, the outer shell includes an outer shell body, and a number of placement chambers and a number of limiting grooves are respectively opened on the side wall of the inner cavity of the outer shell body, and the limiting grooves are connected to the placement chambers. A clearance groove is opened on the side wall of the inner cavity of the limiting groove.

[0015] Furthermore, the second absorption assembly includes several second holding boxes fixedly installed in the cavity of the placement chamber. The interior of the second holding boxes contains a substance capable of absorbing methanol vapor. A flip plate is provided at the opening of the placement chamber. The side wall of the flip plate is movably connected to the side wall at the edge of the opening of the placement chamber through a set of elastic hinges. A snap-fit ​​block is slidably installed in the inner cavity of the limiting groove. The snap-fit ​​block and the flip plate can form a snap-fit ​​relationship. The side wall of the snap-fit ​​block and the side wall of the inner cavity of the limiting groove are elastically connected through a third spring. A T-shaped piece is slidably installed in the inner cavity of the positioning groove. The T-shaped piece is slidably disposed on the snap-fit ​​block.

[0016] Furthermore, the flip plate includes a plate body, and a slot is provided on the side wall of the plate body facing the snap-fit ​​block, and the snap-fit ​​block and the slot can form a snap-fit ​​relationship.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: By incorporating the first absorption component, the methanol vapor inside the storage tank is prevented from being directly released into the atmosphere when the pressure inside the tank is balanced via the breather valve, thus protecting the surrounding environment and organisms and achieving environmental protection goals. The coordinated arrangement of the pressure relief component, water collection tank, and water spray component not only achieves secondary pressure relief from the explosive impact but also utilizes the explosion pressure to pressurize the water, cooling the methanol inside the explosion-proof enclosure and reducing the risk of a secondary explosion. The second absorption component absorbs methanol vapor during the explosion, effectively reducing the amount of methanol vapor released and preventing it from escaping to the outside of the explosion-proof enclosure and causing serious harm to the external environment and personnel. Furthermore, the second absorption component requires no additional drive mechanism; the impact force generated by the explosion is sufficient to flip the plate. Since the second absorption component operates in harsh environments, electrical control during an explosion could lead to its failure. The second absorption component in this invention is not only simple in structure but also possesses excellent reliability. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of the present invention; Figure 2 for Figure 1 Enlarged view of point A; Figure 3 This is a schematic diagram of the overall structure of the present invention from the rear. Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention; Figure 5 for Figure 4 Enlarged view of point B; Figure 6 This is a cross-sectional schematic diagram of the first absorption component of the present invention; Figure 7 for Figure 6 Enlarged view of point C; Figure 8 This is a schematic diagram showing the installation position of the second absorption component of the present invention; Figure 9 for Figure 8 Enlarged view of point D; Figure 10 This is a schematic diagram of the open state of the second absorption component of the present invention; Figure 11 for Figure 10 Enlarged view of point E; Figure 12 This is a cross-sectional schematic diagram of the second absorption component and the water collection tank of the present invention; Figure 13 for Figure 12 Enlarged view of point F.

[0019] In the diagram: 1. Explosion-proof enclosure; 11. Outer shell; 111. Outer shell body; 112. Limiting groove; 113. Clearance groove; 114. Placement chamber; 12. Sealing door; 2. Methanol storage tank; 3. Breathing valve; 4. First absorption assembly; 41. Mounting shell; 42. Slide groove; 43. Sealing plate; 44. Push-pull rod; 45. Irregular connecting rod; 46. First container; 47. Sliding cover; 48. Methanol gas detector alarm; 49. Electric telescopic column; 420. Mounting bracket; 5. Second absorption assembly; 51. Second container 52. Box; 521. Flip-over plate; 522. Plate body; 523. Slot; 54. Elastic hinge; 55. Snap-fit ​​block; 56. Third spring; 67. T-shaped piece; 68. Pressure relief assembly; 69. Connecting pipe; 60. First-stage rod; 61. Slide rail; 62. Second spring; 63. Second-stage rod; 74. Water collection tank; 75. Tank body; 76. Water storage chamber; 77. Push plate; 78. First spring; 79. Water inlet; 80. Water spray assembly; 81. Buffer chamber; 82. Water outlet pipe; 83. Spray head; 9. Water pipe. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To address the technical problem of directly releasing methanol vapor from the methanol storage tank 2 into the atmosphere when balancing the internal pressure via the breather valve 3, which could harm the surrounding environment and organisms, such as... Figures 1-7 As shown, the following preferred technical solutions are provided: An explosion-proof pressure relief device for methanol storage includes an explosion-proof enclosure 1 and a methanol storage tank 2 disposed within the inner cavity of the explosion-proof enclosure 1. The methanol storage tank 2 is used to store methanol, while the explosion-proof enclosure 1 serves a preventative function. In the event of an explosion of the methanol storage tank 2, the device can intercept the fragments of the methanol storage tank 2, preventing the fragments from causing injury to surrounding equipment and personnel. In addition, the explosion-proof enclosure 1 can also confine the methanol vapor generated during the explosion within the enclosure 1, preventing the methanol vapor from escaping over a wide area and causing serious harm to the surrounding environment and personnel. A breather valve 3 is connected to the methanol storage tank 2, which is used to regulate the internal pressure of the methanol storage tank 2, preventing deformation due to excessively low internal pressure and preventing an explosion due to excessively high internal pressure.

[0022] A first absorption component 4 is fixedly installed on the top surface of the explosion-proof shell 1. The upper end of the breather valve 3 penetrates the top surface of the explosion-proof shell 1 and is located inside the first absorption component 4. When the pressure inside the methanol storage tank 2 is too high, the methanol vapor inside the methanol storage tank 2 needs to be released to the outside through the breather valve 3. At this time, when the released methanol vapor passes through the first absorption component 4, it will be absorbed by the first absorption component 4, so that the methanol vapor will not be directly released into the atmosphere, thus achieving the effect of environmental protection and protecting the surrounding environment and organisms.

[0023] Several second absorption components 5 are installed on the side wall of the inner cavity of the explosion-proof enclosure 1. When the methanol storage tank 2 explodes due to temperature factors or other external factors, the explosion pressure will drive the second absorption components 5 to operate, absorbing the methanol vapor escaping from the methanol storage tank 2 and preventing the methanol vapor from escaping into the surrounding environment as much as possible. Water collection tanks 7 are respectively installed on both sides of the explosion-proof enclosure 1. The explosion-proof enclosure 1 and the water collection tanks 7 are connected by several pressure relief components 6. When the methanol storage tank 2 explodes, the explosion pressure will drive the pressure relief components 6 to operate, pushing the moving parts inside the pressure relief components 6 to move into the water collection tanks 7. Essentially, this increases the volume of the explosion-proof enclosure 1, which can play a role in pressure relief. In addition, the water collection tanks 7 are filled with water. Due to the effect of the explosion pressure, the moving parts inside the pressure relief components 6 will squeeze the water inside the water collection tanks 7. During the process of squeezing the water, the water will absorb part of the impact force of the moving parts inside the pressure relief components 6, which also plays a role in pressure relief and can reduce the explosion damage.

[0024] A water spray assembly 8 is fixedly installed on the top surface of the water collection tank 7, and the water spray assembly 8 is connected to the water collection tank 7 through a water pipe 9. The moving parts inside the pressure relief assembly 6 will be squeezed by the explosion pressure, and the water will enter the interior of the water spray assembly 8 through the water pipe 9. Finally, the water spray assembly 8 will be sprayed from the interior of the water spray assembly 8 onto the outer surface of the explosion-proof shell 1 to cool the explosion-proof shell 1 and indirectly cool the methanol vapor inside the explosion-proof shell 1, reducing the risk of secondary explosion. If the spray pressure of the water spray assembly 8 is insufficient after cooling for a period of time, an external water pump can be started to continue to pump water from the water collection tank 7 into the interior of the water spray assembly 8 and spray it onto the explosion-proof shell 1 from the interior of the water spray assembly 8 for cooling.

[0025] The explosion-proof enclosure 1 includes an outer shell 11, and a sealing door 12 is rotatably installed at one end of the outer shell 11. The sealing door 12 and the opening of the outer shell 11 are sealed together. When the sealing door 12 is closed, it can prevent methanol vapor from escaping into the external environment in the event of leakage or explosion of the methanol storage tank 2.

[0026] The first absorption component 4 includes a mounting shell 41 fixedly installed on the top surface of the outer shell 11. A groove 42 is provided on the top of the mounting shell 41. A sealing plate 43 is slidably installed inside the groove 42. A push-pull rod 44 is fixedly installed on the bottom surface of the sealing plate 43. Irregular connecting rods 45 are fixedly installed on the outer walls of both sides of the push-pull rod 44. Several first holding boxes 46 are fixedly arranged on the inner walls of both sides of the inner cavity of the mounting shell 41. A sliding cover 47 is slidably installed at the upper opening of the first holding box 46. The ends of the irregular connecting rods 45 are fixedly connected to the sliding cover 47. A methanol gas detector alarm 48 is also fixedly installed on the side wall of the inner cavity of the mounting shell 41. An electric telescopic column 49 is also arranged on the side of the mounting shell 41. The output end of the electric telescopic column 49 is fixedly connected to the push-pull rod 44, and the electric telescopic column 49 is fixedly installed on the top surface of the outer shell 11 through a mounting bracket 420.

[0027] The first container 46 contains substances that can absorb methanol vapor, such as activated carbon and other chemicals that can absorb methanol vapor.

[0028] Specifically, in the initial state, the sliding cover 47 and the first container 46 are aligned. At this time, the first container 46 is in a sealed state, which protects the activated carbon or chemical substances inside the first container 46 from contamination by external substances and prevents them from becoming ineffective. In addition, it also prevents the volatilization of chemical substances. Similarly, in the initial state, such as Figure 7As shown, the interior of the mounting shell 41 is connected to the external environment. When the internal pressure of the methanol storage tank 2 decreases, the breather valve 3 can directly draw in external gas to balance the internal pressure and prevent deformation of the methanol storage tank 2. When the internal pressure of the methanol storage tank 2 increases, the breather valve 3 releases methanol vapor to the outside of the methanol storage tank 2. When the methanol vapor enters the mounting shell 41 and is detected by the methanol gas detector 48, the methanol gas detector 48 transmits an electrical signal to the controller. The controller then activates the extension of the electric telescopic column 49. During the extension process, the electric telescopic column 49 drives the sealing plate 43 to slide within the inner cavity of the slide groove 42 via the push-pull rod 44, thus sealing the portion of the mounting shell 41 that is connected to the outside environment. The sealing process makes the mounting shell 41 sealed. When the push-pull rod 44 moves the sealing plate 43, it also moves the sliding cover 47 on the first container 46 through the shaped connecting rod 45, making the first container 46 open. At this time, the activated carbon or chemical substances inside the first container 46 will absorb the methanol vapor released from the methanol storage tank 2. When the methanol gas detector alarm 48 detects that the methanol vapor is within a reasonable range, it will activate the electric telescopic column 49 to shorten again. During the shortening process of the electric telescopic column 49, the push-pull rod 44 and the shaped connecting rod 45 will reset the sealing plate 43 and the sliding cover 47 respectively, so that the inside of the mounting shell 41 is connected to the outside again, and the sliding cover 47 will seal the first container 46 again.

[0029] By setting the first absorption component 4, when the gas pressure inside the methanol storage tank 2 is balanced by the breathing valve 3, the methanol vapor inside the methanol storage tank 2 will not be directly discharged into the atmosphere, which can protect the surrounding environment and organisms and achieve the purpose of environmental protection.

[0030] To address the technical problem that existing pressure-relief explosion-proof structures used for methanol storage cannot relieve explosion pressure and thus cannot reduce explosion damage, such as... Figures 3-4 , Figure 6 , Figure 8 , Figure 10 and Figure 12 As shown, the following preferred technical solutions are provided: The water collection tank 7 includes a tank body 71. A pusher plate 73 is slidably installed inside the tank body 71. When the methanol storage tank 2 explodes, the explosion pressure will act on the pressure relief component 6. The pressure relief component 6 will drive the pusher plate 73 to apply pressure to the water, thereby squeezing the water through the water pipe 9 into the interior of the water spray component 8, and then spraying it out by the water spray component 8 to cool the methanol vapor inside the explosion-proof shell 1, reducing the risk of secondary explosion. The side wall of the pusher plate 73 is elastically connected to the side wall of the inner cavity of the tank body 71 by a first spring 74. The first spring 74 is used to reset the pusher plate 73. A water storage cavity 72 is formed between the pusher plate 73 and the tank body 71. The water storage cavity 72 stores cooling water. A water inlet 75 is fixedly installed on the top surface of the tank body 71, and the water inlet 75 is connected to the water storage cavity 72. The water inlet 75 is used to replenish water to the water storage cavity 72 to prevent water shortage inside the water storage cavity 72.

[0031] The pressure relief assembly 6 includes a connecting pipe 61. The inner cavity of the explosion-proof shell 1 and the inner cavity of the tank body 71 are connected through the connecting pipe 61. A primary rod 62 is slidably installed through the inside of the connecting pipe 61. One end of the primary rod 62 is fixedly connected to the push plate 73. A slide rail 63 is provided inside the primary rod 62. A secondary rod 65 is slidably installed inside the slide rail 63. The side wall of the secondary rod 65 is elastically connected to the side wall of the inner cavity of the slide rail 63 by a second spring 64.

[0032] The water spray assembly 8 includes a buffer chamber 81 fixedly installed on the top surface of the tank 71. Several water outlet pipes 82 are fixedly installed on the top surface of the buffer chamber 81, and the water outlet end of the water outlet pipes 82 is connected to a spray head 83 fixedly installed.

[0033] Specifically, such as Figure 4As shown, when methanol storage tank 2 explodes, the impact force of the explosion acts on the secondary rod 65, pushing it to slide inwards towards the slide rail 63, achieving the first pressure relief from the explosion. When it slides to its maximum distance, the impact force of the explosion continues to exert a thrust on the secondary rod 65. Under the action of this thrust, the secondary rod 65 continues to push the primary rod 62 away from methanol storage tank 2. During the movement of the primary rod 62, it pushes the push plate 73 to apply pressure to the water in the water storage chamber 72. The squeezed water enters the buffer chamber 81 through the water pipe 9. Under the action of water pressure, the water in the buffer chamber 81 will... Water is sprayed from the nozzle 83 through the outlet pipe 82. The water sprayed from the nozzle 83 falls onto the explosion-proof housing 1, cooling the methanol vapor inside the explosion-proof housing 1 and reducing the risk of a secondary explosion. During the process of the push plate 73 applying pressure to the water in the water storage chamber 72, the water absorbs part of the impact force on the push plate 73, the first-stage rod 62 and the second-stage rod 65, achieving a second pressure relief of the impact force of the explosion. With this setting, not only can the secondary pressure relief of the explosion impact force be achieved, but the explosion pressure can also be used to apply pressure to the water to cool the methanol inside the explosion-proof housing 1, reducing the risk of a secondary explosion.

[0034] To address the technical problem that existing pressure-relief explosion-proof structures used for methanol storage cannot absorb the large amounts of methanol vapor generated during an explosion, such as... Figure 9 and Figures 11-13 As shown, the following preferred technical solutions are provided: The outer shell 11 includes an outer shell body 111. Several placement chambers 114 and several limiting grooves 112 are respectively opened on the side wall of the inner cavity of the outer shell body 111. The limiting grooves 112 and the placement chambers 114 are connected. The side wall of the inner cavity of the limiting groove 112 is provided with a clearance groove 113.

[0035] The second absorption assembly 5 includes several second holding boxes 51 fixedly installed in the inner cavity of the placement chamber 114. The second holding boxes 51 contain substances capable of absorbing methanol vapor. A flip plate 52 is provided at the opening of the placement chamber 114. The side wall of the flip plate 52 is movably connected to the side wall at the edge of the opening of the placement chamber 114 through a set of elastic hinges 53. A snap-fit ​​block 54 is slidably installed in the inner cavity of the limiting groove 112. The snap-fit ​​block 54 and the flip plate 52 can form a snap-fit ​​relationship. The side wall of the snap-fit ​​block 54 and the side wall of the inner cavity of the limiting groove 112 are elastically connected through a third spring 55. The third spring 55 is used to achieve the reset effect of the snap-fit ​​block 54. A T-shaped piece 56 is slidably installed in the inner cavity of the clearance groove 113. The T-shaped piece 56 is slidably disposed on the snap-fit ​​block 54.

[0036] The flip plate 52 includes a plate body 521. A slot 522 is provided on the side wall of the plate body 521 facing the snap-fit ​​block 54, and the snap-fit ​​block 54 and the slot 522 can form a snap-fit ​​relationship.

[0037] Specifically, such as Figure 11 and Figure 13 As shown, when methanol storage tank 2 explodes, the impact force of the explosion will act on T-shaped part 56. Under the action of the impact force, T-shaped part 56 will slide into the inner cavity of the relief groove 113, as... Figure 13 As shown, due to the arc-shaped portion on the T-shaped member 56, during the sliding process, the arc-shaped portion applies pressure to the locking block 54. Under the action of pressure, the locking block 54 slides within the cavity of the limiting groove 112 and is pulled out from inside the locking groove 522, thus releasing the locking relationship between the locking block 54 and the flip plate 52. Under the elastic force of the elastic hinge member 53, the flip plate 52 flips outward, making the placement chamber 114 open. This allows the substance inside the second holding box 51, which can absorb methanol vapor, to come into contact with the methanol vapor during the explosion process, and... Methanol vapor absorption can effectively reduce the amount of methanol vapor released during the explosion, thereby preventing methanol vapor from escaping to the outside of the explosion-proof enclosure 1 and causing serious harm to the external environment and personnel. Furthermore, the second absorption component 5 does not require an additional drive mechanism; the flipping plate 52 can be flipped using the impact force generated by the explosion. Since the operating environment of the second absorption component 5 is relatively harsh, if electronic control is used during the explosion, the second absorption component 5 may fail. However, the second absorption component 5 in this invention is not only simple in structural design but also has good reliability.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pressure relief explosion-proof device for methanol storage, comprising an explosion-proof housing (1) and a methanol storage tank (2) disposed within the cavity of the explosion-proof housing (1), wherein a breather valve (3) is connected to the methanol storage tank (2), characterized in that: The explosion-proof shell (1) is fixedly provided with a first absorption component (4) on its top surface. The upper end of the breather valve (3) penetrates the top surface of the explosion-proof shell (1) and is located inside the first absorption component (4). Several second absorption components (5) are provided on the side wall of the inner cavity of the explosion-proof shell (1). Water collection tanks (7) are provided on both sides of the explosion-proof shell (1). The explosion-proof shell (1) and the water collection tank (7) are connected by several pressure relief components (6). A water spray component (8) is fixedly provided on the top surface of the water collection tank (7), and the water spray component (8) and the water collection tank (7) are connected by a water pipe (9).

2. The pressure relief explosion-proof device for methanol storage according to claim 1, characterized in that: The explosion-proof enclosure (1) includes an outer shell (11), and a closed door (12) is rotatably installed at one end of the outer shell (11).

3. A pressure-relief explosion-proof device for methanol storage according to claim 2, characterized in that: The first absorption component (4) includes a mounting shell (41) fixedly mounted on the top surface of the outer shell (11). A groove (42) is provided on the top of the mounting shell (41). A sealing plate (43) is slidably mounted inside the groove (42). A push-pull rod (44) is fixedly mounted on the bottom surface of the sealing plate (43). A shaped connecting rod (45) is fixedly mounted on the outer walls of both sides of the push-pull rod (44). Several first holding boxes (46) are fixedly arranged on the inner walls of both sides of the inner cavity of the mounting shell (41). A sliding cover (47) is slidably installed at the upper opening of 6), and the end of the irregular connecting rod (45) is fixedly connected to the sliding cover (47). A methanol gas detector (48) is also fixedly installed on the side wall of the inner cavity of the mounting shell (41). An electric telescopic column (49) is also provided on the side of the mounting shell (41). The output end of the electric telescopic column (49) is fixedly connected to the push-pull rod (44), and the electric telescopic column (49) is fixedly installed on the top surface of the outer shell (11) through the mounting bracket (420).

4. A pressure relief explosion-proof device for methanol storage according to claim 3, characterized in that: The first container (46) contains a substance that can absorb methanol vapor.

5. A pressure relief explosion-proof device for methanol storage according to claim 1, characterized in that: The water collection tank (7) includes a tank body (71), a push plate (73) is slidably installed inside the tank body (71), the side wall of the push plate (73) and the side wall of the inner cavity of the tank body (71) are elastically connected by a first spring (74), a water storage cavity (72) is formed between the push plate (73) and the tank body (71), and a water inlet (75) is fixedly installed on the top surface of the tank body (71), and the water inlet (75) and the water storage cavity (72) are connected.

6. A pressure-relief explosion-proof device for methanol storage according to claim 5, characterized in that: The pressure relief assembly (6) includes a connecting pipe (61). The inner cavity of the explosion-proof shell (1) and the inner cavity of the tank (71) are connected through the connecting pipe (61). A first-stage rod (62) is slidably installed inside the connecting pipe (61). One end of the first-stage rod (62) is fixedly connected to the push plate (73). A slide (63) is opened inside the first-stage rod (62). A second-stage rod (65) is slidably installed inside the slide (63). The side wall of the second-stage rod (65) is elastically connected to the side wall of the inner cavity of the slide (63) through a second spring (64).

7. A pressure-relief explosion-proof device for methanol storage according to claim 6, characterized in that: The water spray assembly (8) includes a buffer chamber (81) fixedly installed on the top surface of the tank (71). Several water outlet pipes (82) are fixedly installed on the top surface of the buffer chamber (81), and the water outlet end of the water outlet pipes (82) is connected to a spray head (83) fixedly installed.

8. A pressure-relief explosion-proof device for methanol storage according to claim 2, characterized in that: The outer shell (11) includes an outer shell body (111). Several placement chambers (114) and several limiting grooves (112) are respectively opened on the side wall of the inner cavity of the outer shell body (111). The limiting grooves (112) and the placement chambers (114) are connected. The side wall of the inner cavity of the limiting groove (112) is provided with a clearance groove (113).

9. A pressure-relief explosion-proof device for methanol storage according to claim 8, characterized in that: The second absorption assembly (5) includes several second holding boxes (51) fixedly installed in the inner cavity of the placement chamber (114). The second holding boxes (51) contain substances that can absorb methanol vapor. A flip plate (52) is provided at the opening of the placement chamber (114). The side wall of the flip plate (52) is movably connected to the side wall at the edge of the opening of the placement chamber (114) through a set of elastic hinges (53). A snap-fit ​​block (54) is slidably installed in the inner cavity of the limiting groove (112). The snap-fit ​​block (54) and the flip plate (52) can form a snap-fit ​​relationship. The side wall of the snap-fit ​​block (54) is elastically connected to the side wall of the inner cavity of the limiting groove (112) through a third spring (55). A T-shaped piece (56) is slidably installed in the inner cavity of the clearance groove (113). The T-shaped piece (56) is slidably installed through the snap-fit ​​block (54).

10. A pressure-relief explosion-proof device for methanol storage according to claim 9, characterized in that: The flip plate (52) includes a plate body (521), and a slot (522) is provided on the side wall of the plate body (521) facing the snap-fit ​​block (54), and the snap-fit ​​block (54) and the slot (522) can form a snap-fit ​​relationship.

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