A state self-aware hazardous chemical sealed storage device

Abstract

The utility model relates to the field of dangerous chemical storage technology, especially to a state self -perception's dangerous chemical sealed storage device, including the outer layer protection jar and be located in the inner layer storage jar of outer layer protection jar inside, the hollow buffer cavity is formed between the inner layer storage jar and outer layer protection jar, the jar wall of inner layer storage jar is equipped with the first pressure -relief part, the output end of first pressure -relief part with hollow buffer cavity is linked together, for the inner layer storage jar pressure reaches the first threshold value when the medium is exported to hollow buffer cavity, the utility model discloses through the first pressure -relief part of inner layer storage jar and the second pressure -relief part of outer layer protection jar form the progressive pressure -relief, the medium in the inner layer storage jar first through hollow buffer cavity buffering, when the pressure in hollow buffer cavity reaches the second threshold value, only to the outside export, avoid the risk that the harmful substance directly discharges in traditional single -stage pressure -relief, when the impact such as unexpected falling appears simultaneously, the outer layer protection jar protects the inner layer storage jar, reduces the mechanical damage to the inner layer storage jar.

Description

Technical Field

[0001] This utility model relates to the field of hazardous chemical storage technology, and in particular to a state-sensing sealed storage device for hazardous chemicals. Background Technology

[0002] Hazardous chemicals are typically stored in single sealed containers. Due to temperature changes, chemical reactions, or the airtightness of the sealed environment, pressure can easily accumulate inside the container. If the pressure exceeds the container's safety limit, it may cause the container to rupture or explode. Therefore, existing technologies generally install pressure relief valves on the containers. When the internal pressure reaches a preset threshold, the pressure relief valve opens directly, releasing the hazardous chemicals into the external environment to relieve the pressure.

[0003] However, hazardous chemicals that are directly released into the environment may contain toxic gases and corrosive vapors. These toxic gases and corrosive vapors are not buffered and can directly endanger operators and the surrounding environment. Furthermore, existing storage devices only rely on the strength of their shells to withstand external impacts. In actual use, whether it is collisions of equipment in the workshop, bumps and friction during transportation, accidental drops, or impacts caused by human error, all may cause mechanical damage to the tank and lead to leakage of hazardous chemicals.

[0004] Therefore, based on the above situation, it is necessary to design a state-sensing sealed storage device for hazardous chemicals to solve the above problems. Utility Model Content

[0005] This invention provides a state-sensing sealed storage device for hazardous chemicals to solve the problems of existing sealed storage devices for hazardous chemicals that rely solely on a single-stage pressure relief valve to directly discharge harmful substances, lack pressure gradient buffering and pretreatment of harmful substances, and have high pressure relief safety risks and delayed risk detection.

[0006] The technical problem solved by this utility model is achieved by the following technical solution: A state-sensing sealed storage device for hazardous chemicals includes an outer protective tank and an inner storage tank located inside the outer protective tank. A hollow buffer cavity is formed between the inner storage tank and the outer protective tank. The inner storage tank has a first pressure relief component on its wall, the output end of which is connected to the hollow buffer cavity for discharging the medium into the hollow buffer cavity when the pressure inside the inner storage tank reaches a first threshold. The outer protective tank has a second pressure relief component on its wall, the input end of which is connected to the hollow buffer cavity for discharging the medium when the pressure inside the hollow buffer cavity reaches a second threshold. The outer protective tank has a warning component for issuing a warning signal.

[0007] Preferably, both the first pressure relief component and the second pressure relief component are spring-loaded pressure relief valves.

[0008] Preferably, the warning component includes a warning light and a touch switch disposed on the first pressure relief component. When the pressure inside the inner storage tank reaches a first threshold, the valve core of the first pressure relief component actuates and abuts the touch switch to control the warning light to start an early warning.

[0009] Preferably, the outer protective tank has multiple supporting ribs evenly spaced on its inner circumferential wall.

[0010] Preferably, the output end of the first pressure relief component is provided with a blocking component for buffering the flow rate of the medium.

[0011] Preferably, the preset threshold of the second pressure relief component is greater than the preset threshold of the first pressure relief component.

[0012] The beneficial effects of this utility model are as follows: a two-stage progressive pressure relief structure is formed by the first pressure relief component of the inner storage tank and the second pressure relief component of the outer protective tank. The medium in the inner storage tank is first buffered by the hollow buffer cavity. When the pressure in the hollow buffer cavity reaches the second threshold, it is discharged to the outside, avoiding the risk of direct discharge of harmful substances in traditional single-stage pressure relief. At the same time, when there is an accidental fall or other impact, the outer protective tank protects the inner storage tank and reduces mechanical damage to the inner storage tank. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 Schematic diagram of the three-dimensional structure provided by this utility model Figure 1 ; Figure 2 Schematic diagram of the three-dimensional structure provided by this utility model Figure 2 ; Figure 3 A cross-sectional structural schematic diagram provided for this utility model; Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0015] In the diagram, 1 is the outer protective tank; 2 is the inner storage tank; 3 is the first pressure relief component; 4 is the second pressure relief component; 5 is the warning component; 51 is the warning light; 52 is the touch switch; 6 is the supporting rib; and 7 is the blocking component. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0017] Reference Figures 1-4 As shown, a state-sensing sealed storage device for hazardous chemicals includes an outer protective tank 1 and an inner storage tank 2 disposed inside the outer protective tank 1. The inner storage tank 2 and the outer protective tank 1 are integrally connected, forming a hollow buffer cavity between them. In use, the hazardous chemicals are stored in the inner storage tank 2. When subjected to an accidental drop or impact caused by human error, the outer protective tank 1 is the first to be subjected to external force, while the inner storage tank 2 is protected, which can reduce mechanical damage to the inner storage tank 2 and reduce the risk of hazardous chemical leakage. A first pressure relief component 3 is provided on the wall of the inner storage tank 2, and a second pressure relief component 4 is provided on the wall of the outer protective tank 1. Both the first pressure relief component 3 and the second pressure relief component 4 are spring-loaded pressure relief valves. Structurally, both the first pressure relief component 3 and the second pressure relief component 4 include a valve body, a valve core piston that is slidably connected to the valve body, and a spring located between the piston and the valve body. When the pressure inside the inner storage tank 2 reaches a first preset threshold due to temperature increase or chemical reaction (e.g., 0.3 MPa for flammable and explosive gases, and 0.5 MPa for corrosive liquids), the valve core piston of the first pressure relief component 3 compresses the spring under pressure and moves upward, opening the medium channel and allowing the medium inside the inner storage tank 2 to be introduced into the hollow buffer cavity through the output end, achieving first-level pressure relief. Similarly, the structure of the second pressure relief component 4 is the same as that of the first pressure relief component 3, with its input end connected to the hollow buffer cavity. The output end can be selectively connected to an exhaust gas treatment device or a directional emission pipeline, depending on the application scenario. For example, the exhaust gas treatment device can be an activated carbon adsorption tank or a neutralization liquid spray assembly. In addition, the second preset threshold of the second pressure relief component 4 is greater than the first preset threshold of the first pressure relief component 3. For example, if the first threshold is set to 0.3MPa, the second threshold is set to 0.6MPa, ensuring that the second pressure relief component 4 will only open and discharge the medium outward when the pressure in the hollow buffer chamber continues to accumulate due to the first-stage pressure relief and exceeds the safe range. In this process, the medium is buffered and temporarily stored through the hollow buffer chamber, and the problem of direct discharge of harmful substances in traditional single-stage pressure relief is avoided. In addition, when the first pressure relief component 3 depressurizes, the warning component 5 on the outer protective tank 1 issues a warning signal to inform the operator of the pressure relief situation in the inner storage tank 2, thus solving the problem of delayed risk response.

[0018] Reference Figure 4As shown, the warning component 5 further includes a warning light 51 and a touch switch 52 located on the first pressure relief component 3. When the pressure inside the inner storage tank 2 reaches the first preset threshold and the valve core piston of the first pressure relief component 3 moves upward, the end of the valve core piston will touch the touch switch 52, causing the circuit of the warning light 51 to be turned on and start flashing warning, reminding the operator that the inner layer has been depressurized and needs to be checked and handled in time, realizing self-sensing and active warning of the storage status, solving the defects of relying only on post-event pressure relief and delayed risk response in traditional use.

[0019] Reference Figure 3 As shown, furthermore, multiple support ribs 6 are provided at equal intervals on the inner circumference of the outer protective tank 1. The support ribs 6 can be made of the same high-strength alloy material as the outer protective tank 1 and are fixed to the outer storage tank by an integral molding process. The support ribs 6 enhance the deformation resistance of the outer protective tank 1. When the outer protective tank 1 is subjected to external pressure or impact, the support ribs 6 can disperse the stress to the entire tank body, avoid the outer tank body from cracking due to local stress concentration, and further improve the structural safety of the overall device.

[0020] Reference Figure 3 , Figure 4 As shown, furthermore, in order to avoid the violent impact caused by the medium rushing into the hollow buffer cavity at high speed during depressurization and damaging the surface of the outer protective tank 1, the output end of the first depressurization component 3 is connected to a blocking component 7. The flow velocity of the medium in the hollow buffer cavity is reduced by the turbulence or blocking effect of the blocking component 7, thereby reducing the erosion of the inner wall of the hollow buffer cavity.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A state-sensing sealed storage device for hazardous chemicals, characterized in that, The device includes an outer protective tank (1) and an inner storage tank (2) located inside the outer protective tank (1). A hollow buffer cavity is formed between the inner storage tank (2) and the outer protective tank (1). The inner storage tank (2) has a first pressure relief component (3) on its wall. The output end of the first pressure relief component (3) is connected to the hollow buffer cavity and is used to discharge the medium to the hollow buffer cavity when the pressure inside the inner storage tank (2) reaches a first threshold. The outer protective tank (1) has a second pressure relief component (4) on its wall. The input end of the second pressure relief component (4) is connected to the hollow buffer cavity and is used to discharge the medium when the pressure inside the hollow buffer cavity reaches a second threshold. The outer protective tank (1) has a warning component (5) for issuing a warning signal.

2. The state-sensing sealed storage device for hazardous chemicals according to claim 1, characterized in that, Both the first pressure relief component (3) and the second pressure relief component (4) are spring-loaded pressure relief valves.

3. The state-sensing sealed storage device for hazardous chemicals according to claim 1, characterized in that, The warning component (5) includes a warning light (51) and a touch switch (52) provided on the first pressure relief component (3). When the pressure in the inner storage tank (2) reaches the first threshold, the valve core of the first pressure relief component (3) is activated and abuts against the touch switch (52) to control the warning light (51) to start the warning.

4. A state-sensing sealed storage device for hazardous chemicals according to claim 1, characterized in that, Multiple supporting ribs (6) are provided at equal intervals on the inner circumference of the outer protective tank (1).

5. A state-sensing sealed storage device for hazardous chemicals according to claim 1, characterized in that, The first pressure relief component (3) has a blocking component (7) at its output end for buffering the flow rate of the medium.

6. A state-sensing sealed storage device for hazardous chemicals according to claim 1, characterized in that, The preset threshold of the second pressure relief component (4) is greater than the preset threshold of the first pressure relief component (3).

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