Pressure container tank

Abstract

The invention relates to a pressure container tank which comprises a pressure tank mechanism and a temporary plugging assembly, the outer side of the pressure tank mechanism is sleeved with the temporary plugging assembly, and a main body frame of the temporary plugging assembly is made of an elastic material. The temporary plugging assembly is tightly attached to the outer peripheral face of the pressure tank mechanism, and the temporary plugging assembly divides the outer peripheral face of the pressure tank mechanism into a plurality of independent closed detection areas. On the premise that an existing tank body is not greatly transformed, the leakage condition of the tank body is monitored and blocked in time, through cooperative use of the passive detection assembly, the replaceable warning mechanism and all matched parts, passive and timely response during leakage of the pressure container tank is achieved, temporary blocking can be conducted on the damaged position of the tank body, and the pressure container tank is prevented from being damaged. Medium leakage is primarily controlled, and pollution expansion is prevented.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of pressure vessels, in particular to a pressure vessel tank. BACKGROUND

[0002] As the core equipment for storing and transporting high-pressure fluids, pressure vessel tanks are widely used in chemical industry, pharmaceutical industry, energy industry and other fields. They are mainly used to bear high-pressure gases, liquids and other media, and are indispensable key devices in industrial production and people's livelihood fields. The pressure vessel tank in the prior art is usually composed of a tank body, a pressure gauge, inlet and outlet pipelines and a foundation protection structure. The tank body is usually made of high-strength metal material and has certain pressure resistance and corrosion resistance. The pressure gauge is used to monitor the pressure in the tank body in real time. The inlet and outlet pipelines realize the input and output of the medium. Some pressure vessel tanks are also equipped with simple sealing structures to reduce the risk of medium leakage.

[0003] The pressure vessel tank in the prior art has many obvious advantages. Firstly, the structure design is simple, the manufacturing cost is relatively low, and it is easy to mass produce and popularize. It can meet the basic needs of different fields for high-pressure medium storage and transportation. Secondly, the tank body is made of high-strength material and has stable pressure resistance. It can withstand the action of high-pressure medium for a long time, has strong operation reliability and long service life. Thirdly, the configuration of monitoring components such as pressure gauges enables the operator to monitor the pressure change in the tank body in real time, so that abnormalities can be found in time and basic countermeasures can be taken to reduce the safety hazards caused by excessive pressure. Fourthly, the setting of the foundation sealing structure can effectively block the leakage of the medium under normal working conditions, ensuring the safety of the environment around the equipment and the utilization rate of the medium.

[0004] Although the existing pressure vessel tank can meet the basic use requirements, there are still many deficiencies in actual application, which are difficult to adapt to the safety protection needs under complex working conditions. First of all, the existing pressure vessel tank lacks passive and timely leakage response structure. When the tank body is damaged and high-pressure medium leaks, temporary plugging of the damaged part cannot be achieved, resulting in continuous leakage of a large amount of medium, causing serious resource waste, and possibly causing environmental pollution, safety accidents and other problems. Secondly, the leaked high-pressure medium is usually light in color, and the existing technology lacks effective leakage point positioning mechanism. It is difficult for the operator to quickly determine the leakage position, which may delay the repair work and further expand the loss. In addition, the protection structure of the existing pressure vessel tank is mostly fixed design. Once leakage occurs, the protection components cannot be self-adapted according to the leakage situation, the sealing performance cannot be further improved, the preliminary control of leakage cannot be achieved, and the cost of maintenance and replacement after leakage is high, which affects the subsequent normal use of the equipment. Therefore, a pressure vessel tank is proposed. SUMMARY

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0006] Given the following technical problems in the existing technology: Firstly, existing pressure vessels lack passive and timely leak response structures. When a tank ruptures and causes a high-pressure medium leak, temporary sealing of the rupture point is impossible, leading to a large and continuous leak of the medium. This not only causes serious resource waste but may also trigger environmental pollution and safety accidents. Secondly, leaked high-pressure media are often light in color, and the existing technology lacks an effective leak point location mechanism, making it difficult for operators to quickly determine the leak location, easily delaying repair work and further increasing losses. Furthermore, the protective structures of existing pressure vessels are mostly fixed designs. Once a leak occurs, the protective components cannot adaptively adjust according to the leak situation, the sealing performance cannot be further improved, it is difficult to achieve initial control of the leak, and the cost of repair and replacement after a leak is high.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a pressure vessel tank, including a pressure tank mechanism and a temporary sealing assembly. The temporary sealing assembly is sleeved on the outside of the pressure tank mechanism. The main frame of the temporary sealing assembly is made of elastic material, so that the temporary sealing assembly is tightly attached to the outer peripheral surface of the pressure tank mechanism. The temporary sealing assembly divides the outer peripheral surface of the pressure tank mechanism into multiple independent and closed detection areas. Each detection area is processed by an independent detection unit. When high-pressure fluid leaks due to tank damage, the high-pressure fluid interacts with the corresponding independent detection unit, producing a color reaction, thereby achieving the purpose of corresponding warning and preliminary pollution control.

[0008] As a preferred technical solution for pressure vessel tanks, the pressure tank mechanism includes a tank body, a pressure gauge, and inlet / outlet pipes. A temporary sealing component is fitted onto the outer side of the tank body, and an inlet / outlet pipe is provided in the middle of the top of the tank body. A pressure gauge is provided on the edge of the top of the tank body. The pressure gauge monitors the tank pressure. When the pressure is abnormal, the leakage point on the circumference can be quickly located by observing whether the color of each cylinder changes.

[0009] As a preferred technical solution for pressure vessel tanks, the temporary sealing assembly includes an outer jacket, a housing, and an elastic frame. Several housings are densely distributed on the inner side of the outer jacket. The housings are closely arranged to form a cylindrical structure that fits over the outer side of the tank. An elastic frame is provided at the end of the housing away from the outer jacket. The elastic frame and the outer side of the tank are pressed against each other.

[0010] As a preferred technical solution for pressure vessel tanks, the temporary sealing assembly also includes an elastic sealing ring. An elastic sealing ring is provided at the end of the elastic frame away from the tank body, and the elastic sealing ring contacts and compresses the outer periphery of the tank body.

[0011] As a preferred technical solution for a pressure vessel, the outer casing is uniformly provided with several detection units. Each detection unit includes a replaceable alarm mechanism and a reaction component. When the reaction component is subjected to fluid impact, it triggers the replaceable alarm mechanism to change color.

[0012] As a preferred technical solution for pressure vessel tanks, the temporary sealing assembly also includes mounting slots and rigid connecting cylinders. Several mounting slots are evenly arranged on the outer casing, and a rigid connecting cylinder is provided on the inner wall of the mounting slot. A replaceable warning mechanism is threadedly connected to the inner side of the rigid connecting cylinder, and the mounting slots correspond one-to-one with the housing.

[0013] As a preferred technical solution for a pressure vessel, the reaction assembly includes a rigid connecting frame, an irregularly shaped elastic frame, a slotted pin, and a movable block. The rigid connecting frame is located inside the housing, and the irregularly shaped elastic frame is located inside the rigid connecting frame. The irregularly shaped elastic frame is made of spring material. A movable block is located in the middle of the irregularly shaped elastic frame. The irregularly shaped elastic frame is bowl-shaped. A slotted pin is located on the side of the movable block facing the replaceable warning mechanism. One end of the slotted pin is a pointed tip. The slotted pin shoots towards the rubber disc, puncturing the rubber disc. After the pointed tip of the slotted pin passes through the rubber disc, it punctures the isolation membrane, causing substance one and substance two to mix and produce a color reaction.

[0014] As a preferred technical solution for pressure vessel tanks, the temporary sealing assembly also includes a frustum and an elastic sealing cover. The slotted nail is provided with a frustum, and multiple layers of coaxially arranged elastic sealing covers are provided on the frustum. The elastic sealing covers are funnel-shaped and made of rubber. When the elastic sealing covers are squeezed, they unfold to seal the opening.

[0015] As a preferred technical solution for a pressure vessel, the replaceable warning mechanism includes a cylinder, a diaphragm, a rigid plate, and a rubber disc. The cylinder is threadedly connected to the inner side of the rigid connecting cylinder. A blind groove is provided inside the cylinder, and the diaphragm and rigid plate are provided inside the blind groove. A rubber disc is provided in the middle of the rigid plate. The rubber disc is made of vulcanized rubber, and the tip of the rubber disc corresponds to the tip of the slotted nail. The rigid plate and the inner wall of the cylinder form a closed cavity, which is called cavity one. A closed cavity is formed between the diaphragm and the rigid plate, which is called cavity two. Cavity one contains substance one, and cavity two contains substance two. When the tip of the slotted nail punctures the diaphragm, substance one and substance two mix and produce a color change.

[0016] As a preferred technical solution for a pressure vessel, the replaceable warning mechanism also includes a cross-shaped groove. A cross-shaped groove is provided at the end of the cylinder away from the blind groove opening, and the cross-shaped groove facilitates the insertion of a flathead screwdriver to turn the cylinder.

[0017] The beneficial effects of the pressure vessel tank of the present invention are as follows: without making major modifications to the existing tank, the leakage of the tank can be monitored and timely sealed. Through the coordinated use of passive detection components, replaceable alarm mechanisms and various supporting components, a passive and timely response to the leakage of the pressure vessel tank can be achieved. It can temporarily seal the damaged part of the tank, initially control the leakage of the medium and prevent the spread of pollution. Through the color reaction of the alarm mechanism, the leakage point can be quickly located, avoiding delays in repair work and reducing losses. The adaptive adjustment of the elastic structure enables dynamic improvement of sealing performance, further ensuring leakage control. The design of replaceable modules enables rapid repair and replacement after leakage, reducing maintenance costs and ensuring that the equipment can be quickly restored to normal use. At the same time, it improves the overall safety protection performance and operational reliability of the pressure vessel, adapting to the needs of use under complex working conditions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention from a top view. Figure 3 This is a three-dimensional structural diagram of the passive detection component of the present invention; Figure 4 For the present invention Figure 2 A magnified schematic diagram of part A in the middle section; Figure 5 For the present invention Figure 5 A magnified schematic diagram of part B in the middle section.

[0019] Reference numerals: 100, pressure tank mechanism; 101, tank body; 102, pressure gauge; 103, inlet / outlet pipes; 200, temporary sealing assembly; 201, outer casing; 202, mounting groove; 203, housing; 204, elastic frame; 205, elastic sealing ring; 206, rigid connecting frame; 207, irregularly shaped elastic frame; 208, slotted nail; 209, truncated cone; 210, elastic sealing cover; 211, rigid connecting cylinder; 212, movable block; 213, protrusion; 300, replaceable warning mechanism; 301, cylinder; 302, cross-shaped groove; 303, isolation membrane; 304, rigid plate; 305, rubber circular plate; 400, elastic hoop. Detailed Implementation

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0022] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0023] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0024] like Figures 1-5 As shown, this invention proposes a pressure vessel tank, including a pressure tank mechanism 100 and a temporary sealing assembly 200. The temporary sealing assembly 200 is sleeved on the outer side of the pressure tank mechanism 100. The main frame of the temporary sealing assembly 200 is made of elastic material, so that the temporary sealing assembly 200 is tightly attached to the outer peripheral surface of the pressure tank mechanism 100. The temporary sealing assembly 200 divides the outer peripheral surface of the pressure tank mechanism 100 into multiple independent and closed detection areas. Each detection area is processed by an independent detection unit. When high-pressure fluid leaks due to tank damage, the high-pressure fluid interacts with the corresponding independent detection unit, producing a color reaction, thereby achieving the purpose of corresponding warning and preliminary pollution control.

[0025] The pressure tank mechanism 100 includes a tank body 101, a pressure gauge 102, and inlet / outlet pipes 103. A temporary sealing assembly 200 is sleeved on the outside of the tank body 101. The inlet / outlet pipe 103 is provided in the middle of the top of the tank body 101. The pressure gauge 102 is provided on the edge of the top of the tank body 101. The pressure gauge monitors the pressure of the tank body 101. When the pressure is abnormal, the leakage point on the circumferential surface can be quickly located by observing whether the color of each cylinder 301 changes.

[0026] The temporary sealing assembly 200 includes an outer jacket 201, a box 203, and an elastic frame 204. Several boxes 203 are densely distributed on the inner side of the outer jacket 201. The boxes 203 are closely arranged to form a cylindrical structure that fits over the outer side of the tank 101. An elastic frame 204 is provided at the end of the box 203 away from the outer jacket 201. The elastic frame 204 and the outer side of the tank 101 are pressed against each other.

[0027] As a preferred technical solution for a pressure vessel tank, the temporary sealing assembly 200 also includes an elastic sealing ring 205. The elastic frame 204 is provided with an elastic sealing ring 205 at the end away from the box body 203. The elastic sealing ring 205 contacts and is squeezed with the outer periphery of the tank body 101.

[0028] The outer casing 201 is uniformly provided with several detection units. Each detection unit includes a replaceable warning mechanism 300 and a reaction component. When the reaction component is subjected to fluid impact, it triggers the replaceable warning mechanism 300 to change color.

[0029] The temporary sealing assembly 200 also includes a mounting groove 202 and a rigid connecting cylinder 211. Several mounting grooves 202 are evenly arranged on the outer casing 201. The inner wall of the mounting groove 202 is provided with a rigid connecting cylinder 211. A replaceable warning mechanism 300 is threadedly connected to the inner side of the rigid connecting cylinder 211. The mounting grooves 202 correspond one-to-one with the box body 203.

[0030] The reaction assembly includes a rigid connecting frame 206, an irregularly shaped elastic frame 207, a slotted pin 208, and a movable block 212. The rigid connecting frame 206 is provided inside the housing 203, and the irregularly shaped elastic frame 207 is provided inside the rigid connecting frame 206. The irregularly shaped elastic frame 207 is made of spring material. The movable block 212 is provided in the middle of the irregularly shaped elastic frame 207. The irregularly shaped elastic frame 207 is bowl-shaped. The slotted pin 208 is provided on the side of the movable block 212 facing the replaceable warning mechanism 300. One end of the slotted pin 208 is set as a sharp point. The slotted pin 208 shoots towards the rubber disc 305, puncturing the rubber disc 305. After the sharp point of the slotted pin 208 passes through the rubber disc 305, it punctures the isolation membrane 303, causing substance one and substance two to mix and produce a color reaction.

[0031] The temporary sealing assembly 200 also includes a frustum 209 and an elastic sealing cover 210. The frustum 209 is provided on the slotted nail 208, and multiple layers of coaxially arranged elastic sealing covers 210 are provided on the frustum 209. The elastic sealing cover 210 is funnel-shaped and made of rubber. When the elastic sealing cover 210 is squeezed, it expands to seal the opening.

[0032] The replaceable warning mechanism 300 includes a cylinder 301, an isolation membrane 303, a rigid plate 304, and a rubber disc 305. The cylinder 301 is threadedly connected to the inner side of the rigid connecting cylinder 211. A blind groove is provided on the inner side of the cylinder 301. The isolation membrane 303 and the rigid plate 304 are provided on the inner side of the blind groove. The rubber disc 305 is provided in the middle of the rigid plate 304. The rubber disc 305 is made of vulcanized rubber. The tip of the rubber disc 305 corresponds to the tip of the slotted nail 208. The rigid plate 304 and the inner wall of the cylinder 301 form a closed cavity, which is called cavity one. The isolation membrane 303 and the rigid plate 304 form a closed cavity, which is called cavity two. Cavity one contains substance one, and cavity two contains substance two. When the tip of the slotted nail 208 punctures the isolation membrane 303, substance one and substance two mix and produce a color change.

[0033] The replaceable warning mechanism 300 also includes a cross-shaped groove 302. The cylindrical 301 has a cross-shaped groove 302 at one end away from the blind groove opening. The cross-shaped groove 302 facilitates the insertion of a flathead screwdriver to turn the cylindrical 301.

[0034] Multiple elastic bands 400 are fitted around the outer side of the outer sleeve 201, so that the outer sleeve 201 fits tightly against the outer side of the tank body 101. The elastic sealing ring 205 fits tightly against the outer side of the tank body 101, so that the outer side of the tank body 101 is isolated. In the event of leakage on the outer circumference of the tank body 101, the damaged area can be temporarily sealed, so that the leakage can be temporarily controlled and the situation of "fluid jetting and causing the pollution to spread" can be prevented.

[0035] The bottom of the box 203 is provided with a protrusion 213. The protrusion 213 protrudes into the inner cavity of the box 203 and occupies the inner cavity space of the box 203. The material of the protrusion 213 is spring steel. The leaked high-pressure fluid squeezes the protrusion 213 inside the box 203, causing the protrusion 213 to undergo slight deformation. This allows the protrusion 213 to increase the pressure on the elastic frame 204 and the elastic sealing ring 205, making the elastic frame 204 and the elastic sealing ring 205 fit more tightly against the outer periphery of the tank 101. Through this negative feedback adjustment, the seal between the elastic frame 204 and the elastic sealing ring 205 and the outer periphery of the tank 101 is more stable.

[0036] When existing pressure vessels leak, they often lack passive and timely response structures, resulting in a large and continuous leakage of the contents of the pressure vessel. This makes it impossible to temporarily seal the leak in time, and the leaking contents are often light-colored, making it difficult to pinpoint the location of the leak. This can easily delay the repair work on the pressure vessel and thus increase the losses.

[0037] The movable block 212 deforms by squeezing the elastic sealing cover 210 through the slotted nail 208 and the frustum 209. The elastic sealing cover 210 can cover the outside of the rubber disc 305, so that the opening on the rubber disc 305 is closed.

[0038] The cylinder 301 is made of FEP transparent fluoroplastic, which allows the color inside the cylinder 301 to be seen.

[0039] The material of the separator 303 is fluororubber. Option 1: Substance 1 is nitric oxide, and substance 2 is oxygen. The two are mixed to form a red gas.

[0040] Option 2: Substance 1 is nitrous oxide, and substance 2 is nitrogen gas. The two are mixed to form a blue gas.

[0041] After a warning is triggered by a change in the color of the inner side of cylinder 301, the corresponding cylinder 301 is unscrewed to expose the corresponding box 203. After destroying the corresponding irregular elastic frame 207 and rigid connecting frame 206, the corresponding position can be marked or the leak can be plugged on the spot. Then, by replacing the corresponding replaceable warning mechanism 300 and box 203 module, the temporary sealing component 200 can be put back into use.

[0042] The specific implementation method is as follows: When the pressure is abnormal, the leakage point on the circumferential surface can be quickly located by observing whether the color of each cylinder 301 changes. When the outer circumferential surface of the tank 101 is damaged and leaks, one or more boxes 203 correspond to the damaged area. The high-pressure fluid in the inner cavity of the tank 101 leaks. The high-pressure fluid squeezes the irregular elastic frame 207 in the box 203 and deforms it, causing the irregular elastic frame 207 to buckle. This causes the movable block 212 to shoot the slotted nail 208 towards the rubber disc 305, puncturing the rubber disc 305. The tip of the slotted nail 208 pierces the isolation membrane 303 after passing through the rubber disc 305, causing substance one and substance two to mix and produce a color reaction. This causes the color of the inner side of the cross-shaped groove 302 to change, thus playing an early warning role. In this way, the leakage point can be found in time for repair, avoiding wasting time searching.

[0043] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pressure vessel, characterized in that: The device includes a pressure tank mechanism (100) and a temporary sealing assembly (200). The temporary sealing assembly (200) is sleeved on the outside of the pressure tank mechanism (100). The main frame of the temporary sealing assembly (200) is made of elastic material, so that the temporary sealing assembly (200) is tightly attached to the outer peripheral surface of the pressure tank mechanism (100). The temporary sealing assembly (200) divides the outer peripheral surface of the pressure tank mechanism (100) into multiple independent and closed detection areas. Each detection area is handled by an independent detection unit. When high-pressure fluid leaks due to tank damage, the high-pressure fluid interacts with the corresponding independent detection unit and produces a color reaction, thereby achieving the purpose of corresponding warning and preliminary control of pollution.

2. A pressure vessel tank according to claim 1, characterized in that: The pressure tank mechanism (100) includes a tank body (101), a pressure gauge (102) and an inlet / outlet pipe (103). A temporary sealing assembly (200) is sleeved on the outside of the tank body (101). An inlet / outlet pipe (103) is provided in the middle of the top of the tank body (101). A pressure gauge (102) is provided on the edge of the top of the tank body (101).

3. A pressure vessel tank according to claim 2, characterized in that: The temporary sealing assembly (200) includes an outer jacket (201), a box (203) and an elastic frame (204). Several boxes (203) are densely distributed on the inner side of the outer jacket (201). The boxes (203) are closely arranged to form a cylindrical structure that fits on the outside of the tank (101). An elastic frame (204) is provided at the end of the box (203) away from the outer jacket (201). The elastic frame (204) and the outside of the tank (101) are pressed against each other.

4. A pressure vessel tank according to claim 3, characterized in that: The temporary sealing assembly (200) also includes an elastic sealing ring (205). An elastic sealing ring (205) is provided at the end of the elastic frame (204) away from the box body (203). The elastic sealing ring (205) contacts and is squeezed with the outer periphery of the tank body (101).

5. A pressure vessel tank according to claim 3, characterized in that: The outer casing (201) is uniformly provided with several detection units, each of which includes a replaceable warning mechanism (300) and a reaction component. When the reaction component is subjected to fluid impact, it triggers the replaceable warning mechanism (300) to change color.

6. A pressure vessel tank according to claim 5, characterized in that: The temporary sealing assembly (200) also includes a mounting groove (202) and a rigid connecting cylinder (211). Several mounting grooves (202) are evenly arranged on the outer casing (201). The inner wall of the mounting groove (202) is provided with a rigid connecting cylinder (211). A replaceable warning mechanism (300) is threadedly connected to the inner side of the rigid connecting cylinder (211). The mounting groove (202) corresponds to the box body (203) one by one.

7. A pressure vessel tank according to claim 5, characterized in that: The reaction assembly includes a rigid connecting frame (206), an irregular elastic frame (207), a slotted pin (208), and a movable block (212). The rigid connecting frame (206) is provided on the inner side of the box body (203), and the irregular elastic frame (207) is provided on the inner side of the rigid connecting frame (206). The irregular elastic frame (207) is made of spring sheet. The movable block (212) is provided in the middle of the irregular elastic frame (207). The irregular elastic frame (207) is bowl-shaped. The slotted pin (208) is provided on the side of the movable block (212) facing the replaceable alarm mechanism (300). One end of the slotted pin (208) is set as a pointed tip.

8. A pressure vessel tank according to claim 5, characterized in that: The temporary sealing assembly (200) also includes a frustum (209) and an elastic sealing cover (210). The frustum (209) is provided on the slotted nail (208), and the frustum (209) is provided with multiple layers of coaxially arranged elastic sealing covers (210). The elastic sealing cover (210) is horn-shaped and is made of rubber.

9. A pressure vessel tank according to claim 6, characterized in that: The replaceable warning mechanism (300) includes a cylinder (301), an isolation membrane (303), a rigid plate (304), and a rubber disc (305). The cylinder (301) is threadedly connected to the inner side of the rigid connecting cylinder (211). A blind groove is provided on the inner side of the cylinder (301). The isolation membrane (303) and the rigid plate (304) are provided on the inner side of the blind groove. A rubber disc (305) is provided in the middle of the rigid plate (304). The material of the rubber disc (305) is vulcanized rubber. The tip of the rubber disc (305) corresponds to the tip of the slotted nail (208). The rigid plate (304) and the inner wall of the cylinder (301) form a closed cavity, which is called cavity one. A closed cavity is formed between the isolation membrane (303) and the rigid plate (304), which is called cavity two. Cavity one contains substance one, and cavity two contains substance two.

10. A pressure vessel tank according to claim 9, characterized in that: The replaceable warning mechanism (300) also includes a cross-shaped groove (302), and the cylinder (301) has a cross-shaped groove (302) at the end away from the blind groove opening.

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