A pressure vessel that can be depressurized

Abstract

This invention relates to the field of pressure vessel technology, specifically disclosing a pressure-relief pressure vessel. The pressure vessel includes a circular top and a side wall portion connected as a single unit from top to bottom, and also includes a concave bottom portion that is rolled and sealed to the bottom of the side wall portion. The top of the circular top is provided with a pressure relief port. The side wall portion is cylindrical. The lower edge of the side wall portion is tightly attached to the outer edge of the concave bottom portion and is rolled outward for sealing connection. The concave bottom portion includes a circular bottom surface at the center and an inclined connecting surface. A pressure relief groove is provided on the outer surface of the circular bottom surface. The dimensions of the circular top, side wall portion, circular bottom surface, inclined connecting surface, and pressure relief groove satisfy a specific proportional relationship. Therefore, the pressure vessel obtained by selecting the size values ​​of each part within a limited range can have better safety. Industry personnel no longer need to conduct excessive sampling and testing. They can directly select the size values ​​of the pressure vessel according to the limited method of this invention, which greatly reduces the product testing cost.

Description

Technical Field

[0001] This invention relates to the field of pressure vessel technology, and more particularly to a pressure vessel with pressure relief capability. Background Technology

[0002] Pressure vessels are used to package and dispense various fluid products, such as liquids, gases, solids, and mixtures thereof. Under normal operating conditions, these vessels fully meet requirements. However, if improper use, heat, or other causes lead to overpressure within the vessel, it may rupture violently. Various aerosol cans are also available on the market to prevent explosions of pressurized containers.

[0003] Among these pressure relief devices, one type features one or more recessed areas at the bottom of the tank, combined with pressure relief grooves of decreasing material thickness to provide a defined release pressure. However, because a shallow pressure relief depth leads to high-pressure release, while a deep depth leads to premature low-pressure release, microcracks develop on the remaining thin metal sheet at the bottom of the pressure relief grooves. Therefore, frequent sampling and testing are crucial before mass production, requiring a high level of technical expertise and significantly increasing manufacturing costs. Thus, those skilled in the art urgently need to find a new technical solution to address these problems. Summary of the Invention

[0004] In view of the technical problems in the prior art, the present invention provides a pressure vessel that can release pressure.

[0005] This invention discloses a pressure-relieving vessel, comprising a circular top and a sidewall portion integrally connected from top to bottom, and an inner concave bottom portion rolled and sealed to the bottom of the sidewall portion. The top of the circular top is provided with a pressure relief port. The sidewall portion is cylindrical; the lower edge of the sidewall portion is tightly fitted to the outer edge of the inner concave bottom portion and rolled outwards for a sealed connection. The inner concave bottom portion includes a circular bottom surface at its center and an inclined connecting surface; the outer surface of the circular bottom surface is provided with pressure relief grooves.

[0006] The dimensions of the pressure vessel meet the following requirements: =[2, 5], =[2, 4], =[0.5, 0.75], =[4, 20]; ; ; ; ;

[0007] The height of the dome is a1, and the value of a1 is in the range of [5mm, 40mm].

[0008] The height of the side wall is a2, and the value of a2 is in the range of [50mm, 300mm].

[0009] The diameter of the circular base is a3, and the value of a3 is in the range of [3mm, 60mm].

[0010] The maximum diameter of the inclined connecting surface is a4, and the value of a4 is in the range of [30mm, 125mm].

[0011] The diameter of the sidewall is a5, and the value of a5 is in the range of [35mm, 130mm].

[0012] The distance between the circular base and the bottom surface of the pressure vessel is a6, and the value of a6 ranges from [2mm, 30mm].

[0013] The length of the pressure relief groove is a7, and the value of a7 is [1.5mm, 45mm].

[0014] The thickness of the sidewall is b1, and the value of b1 ranges from [0.18 mm to 0.38 mm].

[0015] The thickness of the concave bottom is b2, and the value of b2 is [0.3mm, 0.8mm].

[0016] Furthermore, the pressure relief grooves can be straight grooves, arc grooves, X-shaped grooves, or V-shaped grooves.

[0017] Furthermore, the circular arc groove corresponds to the central angle. The angle range is The corresponding radius R ranges from R=[0.5, 5].

[0018] Furthermore, the cross-sectional shape of the pressure relief groove is an isosceles trapezoid, and the width of the pressure relief groove gradually decreases from the groove opening to the bottom of the groove.

[0019] Furthermore, the cross-sectional shape of the pressure relief groove is hook-shaped or U-shaped.

[0020] Furthermore, the dimensions of the pressure vessel meet the following requirements: ;

[0021] The depth of the pressure relief groove is b3, and the value of b3 ranges from [0.25mm, 0.75mm].

[0022] The thickness of the circular bottom surface at the pressure relief groove is b4, and the value of b4 ranges from [0.05mm, 0.4mm].

[0023] The width of the groove opening of the pressure relief groove is a8, and the value of a8 is in the range of [0.1mm, 3mm].

[0024] The width of the bottom of the pressure relief groove is b6, and the value of b6 ranges from [0.1mm to 1mm].

[0025] Furthermore, the dimensions of the pressure vessel meet the following requirements: , ;

[0026] The depth of the pressure relief groove is b3, and the value of b3 ranges from [0.25mm, 0.75mm].

[0027] The width of the groove opening of the pressure relief groove is a8, and the value of a8 ranges from [0.1mm to 5mm].

[0028] Furthermore, the depth of the arc groove gradually increases from the two ends to the midpoint, and the depth of the two ends of the arc groove is b5, with the value of b5 ranging from [0.1mm, 0.45mm].

[0029] Furthermore, the depth of the arc groove is consistent from both ends to the midpoint, and the value of b3 ranges from [0.3mm, 0.6mm].

[0030] Furthermore, the dimensions of the pressure vessel meet the following requirements: , .

[0031] The pressure-relief vessel of the present invention includes a rounded top and a sidewall portion integrally connected from top to bottom, and a concave bottom portion rolled and sealed to the bottom of the sidewall portion. The top of the rounded top is provided with a pressure relief port. The sidewall portion is cylindrical. The lower edge of the sidewall portion is tightly attached to the outer edge of the concave bottom portion and rolled outward to seal it. The concave bottom portion includes a circular bottom surface at the center and an inclined connecting surface. A pressure relief groove is provided on the outer surface of the circular bottom surface. The dimensions of the rounded top, sidewall portion, circular bottom surface, inclined connecting surface, and pressure relief groove satisfy a specific proportional relationship. Therefore, the pressure vessel obtained by selecting the size values ​​of each part within a limited range can have better safety. Industry personnel no longer need to conduct excessive sampling and testing. They can directly select the size values ​​of the pressure vessel according to the present invention, which greatly reduces the product testing cost. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present 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 present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of a pressure vessel capable of releasing pressure according to an embodiment of the present invention;

[0034] Figure 2This is a dimensioned diagram of the pressure vessel capable of releasing pressure according to an embodiment of the present invention;

[0035] Figure 3 This is a dimensioned diagram of the pressure relief groove in the pressure vessel according to an embodiment of the present invention;

[0036] Figure 4 A schematic diagram (a) of the shape of the pressure relief groove in the pressure vessel of this invention embodiment;

[0037] Figure 5 This is a schematic diagram (II) of the shape of the pressure relief groove in the pressure vessel of the present invention.

[0038] Figure 6 This is a schematic diagram (III) of the shape of the pressure relief groove in the pressure vessel of the present invention.

[0039] Figure 7 This is a partial cross-sectional schematic diagram (a) of the circular bottom surface of a pressure vessel that can be depressurized according to an embodiment of the present invention.

[0040] Figure 8 This is a partial cross-sectional schematic diagram (II) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention.

[0041] Figure 9 This is a partial cross-sectional schematic diagram (III) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention;

[0042] Figure 10 This is a partial cross-sectional schematic diagram (IV) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention.

[0043] Figure 11 This is a partial cross-sectional schematic diagram (V) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention.

[0044] Figure 12 This is a partial cross-sectional schematic diagram (VI) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention;

[0045] Figure 13 This is a partial cross-sectional schematic diagram (VII) of the circular bottom surface of the pressure vessel that can be depressurized according to an embodiment of the present invention.

[0046] Among them, 10-round top, 101-pressure relief port, 20-side wall, 30-concave bottom, 301-circular bottom surface, 302-inclined connecting surface, and 303-pressure relief groove. Detailed Implementation

[0047] The technical solutions in 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 protection scope of the present invention.

[0048] An embodiment of the present invention provides a pressure-relief vessel, such as... Figure 1 As shown, the pressure vessel includes a dome 10 and a side wall portion 20 connected as a single unit from top to bottom, and also includes a concave bottom 30 that is rolled and connected to the bottom of the side wall portion 20. The top of the dome 10 is provided with a pressure relief port 101. The side wall portion 20 is cylindrical. The lower edge of the side wall portion 20 is in close contact with the outer edge of the concave bottom 30 and is rolled outward to seal the connection. The concave bottom 30 includes a circular bottom surface 301 at the center and an inclined connecting surface 302. The outer surface of the circular bottom surface 301 is provided with a pressure relief groove 302.

[0049] The dimensions of the pressure vessel in this embodiment of the invention satisfy the following: =[2, 5], =[2, 4], =[0.5, 0.75], =[4, 20]; ; ; ; ;

[0050] Among them: such as Figures 2 to 3 As shown,

[0051] The height of the dome 10 is a1, and the value of a1 is in the range of [5mm, 40mm].

[0052] The height of the side wall portion 20 is a2, and the value of a2 ranges from [50mm to 300mm].

[0053] The diameter of the circular base 301 is a3, and the value of a3 is in the range of [3mm, 60mm].

[0054] The maximum diameter of the inclined connecting surface 302 is a4, and the value of a4 is in the range of [30mm, 125mm].

[0055] The diameter of the side wall portion 20 is a5, and the value of a5 ranges from [35mm to 130mm].

[0056] The distance between the circular bottom surface 301 and the bottom surface of the pressure vessel is a6, and the value of a6 is in the range of [2mm, 30mm].

[0057] The length of the pressure relief groove 303 is a7, and the value of a7 is in the range of [1.5mm, 45mm]. The closer the length of the pressure relief groove is to the diameter a3 of the circular bottom surface, the lower the pressure bearing capacity of the pressure vessel.

[0058] Furthermore, in this embodiment of the invention, the thickness of the side wall portion 20 of the pressure vessel is b1, with a value ranging from [0.18 mm to 0.38 mm]; the thickness of the concave bottom portion 30 is b2, with a value ranging from [0.3 mm to 0.8 mm]. The thickness b2 of the concave bottom portion 30 can be selected as needed. For example, when storing corrosive gases in a general pressure vessel, the thickness of the concave bottom portion can be increased to prevent the corrosive gases from corroding the concave bottom portion and causing it to become too thin, thus ensuring product safety.

[0059] The dimensions of the pressure vessel in this embodiment of the invention have at least four proportional relationships. This expresses the dimensional relationship between the total height of the pressure vessel and its maximum diameter. This expresses the dimensional relationship between the diameter of the concave bottom 30 and the diameter of the circular bottom surface 301 therein. This illustrates the dimensional relationship between the length of the pressure relief groove 302 and the circular bottom surface 301. This reflects the dimensional relationship between the internal area of ​​the pressure vessel and the degree of concavity of the concave bottom 30 under the longitudinal section of the pressure vessel. By defining this dimensional relationship, those skilled in the art can select dimensional values ​​for each part within the defined range to obtain a pressure vessel with better safety, eliminating the need for excessive sampling and testing, and significantly reducing product testing costs. Furthermore, those skilled in the art can directly use the subsequent parameter value examples of this invention as the dimensional parameters of the corresponding pressure vessel.

[0060] Specifically, in this embodiment of the invention, the pressure relief groove 303 can be a straight groove, an arc groove, an X-shaped groove, or a V-shaped groove. For example... Figure 4 As shown, this is a V-shaped groove, such as... Figure 5 and Figure 6 As shown, this is an X-shaped groove.

[0061] Specifically, when the pressure relief groove 303 is an arc groove, the corresponding central angle of the arc groove is... The angle range is The corresponding radius R ranges from R=[0.5, 5].

[0062] like Figure 7 As shown, the cross-sectional shape of the pressure relief groove 303 in this embodiment of the invention is an isosceles trapezoid, and the width of the pressure relief groove 303 gradually decreases from the groove opening to the groove bottom.

[0063] Or, such as Figure 8, Figure 9 As shown, the cross-sectional shape of the pressure relief groove 303 is hook-shaped or U-shaped. For example... Figure 10 The image shows a special hook shape, or V-shape.

[0064] Specifically, the dimensions of the pressure vessel in this embodiment of the invention also satisfy the following: ;

[0065] Among them, the depth of the pressure relief groove 303 is b3, and the value of b3 is in the range of [0.25mm, 0.75mm].

[0066] The thickness of the circular bottom surface 301 at the pressure relief groove 303 is b4, and the value of b4 ranges from [0.05mm to 0.4mm]. For circular bottom surfaces 301 of the same thickness, the larger the value of b4, the stronger the pressure bearing capacity of the pressure vessel.

[0067] like Figures 7 to 10 As shown, the width of the groove opening of the pressure relief groove 303 is a8, and the value of a8 ranges from [0.1mm to 3mm]. When the depth b3 of the pressure relief groove 303 and the thickness b4 of the circular bottom surface 301 at the pressure relief groove 303 are constant, the larger the value of a8, the smaller the pressure-bearing capacity of the pressure vessel. The value of a8 also affects the pressure relief speed of the pressure vessel. For example, for two pressure vessels of the same size, the wider the opening of the pressure relief groove 303, the faster the pressure relief. The width of the bottom of the pressure relief groove 303 is b6, and the value of b6 ranges from [0.1mm to 1mm].

[0068] In this embodiment, for the case where the cross-sectional shape of the pressure relief groove 303 is an isosceles trapezoid, the ratio of the groove opening width a8 to the groove bottom width b6 of the pressure relief groove 303 and the ratio of the thickness b4 to the thickness b2 of the circular bottom surface 301 at the pressure relief groove 303 are set to be equal.

[0069] Specifically, the dimensions of the pressure vessel in this embodiment of the invention satisfy the following: , ;

[0070] The depth of the pressure relief groove is b3, and the value of b3 ranges from [0.25mm, 0.75mm].

[0071] The width of the groove opening of the pressure relief groove is a8, and the value of a8 ranges from [0.1mm to 5mm].

[0072] In the pressure vessel of this embodiment, the ratio between the groove width a8 and the depth b3 of the pressure relief groove 303 has a certain range. This ratio reflects the pressure-bearing capacity of the pressure vessel. For example, when the groove width a8 is the same, the smaller the depth b3 of the pressure relief groove 303, the better. The larger the value, the greater the pressure of the pressure vessel.

[0073] Specifically, such as Figure 11 As shown, the depth of the arc groove gradually increases from the two ends to the midpoint, and the depth of the two ends of the arc groove is b5, with the value of b5 ranging from [0.1mm, 0.45mm].

[0074] In another embodiment, specifically, such as Figure 12 As shown, the depth of the arc groove gradually increases from the two ends to the midpoint, and the depth of the two ends of the arc groove is 0.

[0075] In another embodiment, specifically, such as Figure 13 As shown, the depth of the arc groove is consistent from both ends to the midpoint, and the value of b3 ranges from [0.3mm, 0.6mm].

[0076] Combination Figures 11 to 13 When the pressure relief groove 303 in the embodiments of the present invention is of other shapes, the depth can gradually increase from the end point to the midpoint, or the depth can be the same from the end point to the midpoint.

[0077] Specifically, in this embodiment of the invention, the dimensions of the pressure vessel also satisfy: , .

[0078] The value of a6 represents the relationship between the total height of the pressure vessel and the degree of concavity of the concave bottom 30. When the total height of the pressure vessel is constant, the larger the value of a6, the better. The smaller the value, the greater the pressure value of the pressure vessel.

[0079] Based on all the above embodiments, the following provides specific values ​​for multiple sets of parameters as examples.

[0080] Table 1

[0081]

[0082] Table 2

[0083]

[0084] Table 3

[0085]

[0086] Table 4

[0087]

[0088] Table 5

[0089]

[0090] Table 6

[0091]

[0092] Table 7

[0093]

[0094] Table 8

[0095]

[0096] Table 9

[0097]

[0098] Table 10

[0099]

[0100] Table 11

[0101]

[0102] Table 12

[0103]

[0104] Table 13

[0105]

[0106] Table 14

[0107]

[0108] Table 15

[0109]

[0110] Table 16

[0111]

[0112] Table 17

[0113]

[0114] Table 18

[0115]

[0116] Table 19

[0117]

[0118] Table 20

[0119]

[0120] Those skilled in the art can directly produce products of corresponding sizes based on the numerical relationships disclosed in this invention, eliminating the need for sampling and testing, thus significantly reducing product testing costs. Regarding the product material, those skilled in the art can use commercially available materials for production, such as deformable metal sheets. Furthermore, a corrosion-resistant coating can be applied to the product surface to prevent the internal filling medium from corroding the container wall.

[0121] Since the main research focus of this invention is on the dimensional relationships of pressure vessels, the specific production process and depressurization process of pressure vessels will not be described in detail. Those skilled in the art can directly refer to the existing technology for understanding.

[0122] The pressure-relief vessel of this invention includes a dome and a sidewall portion integrally connected from top to bottom, and a concave bottom portion rolled and sealed to the bottom of the sidewall portion. The top of the dome is provided with a pressure relief port. The sidewall portion is cylindrical. The lower edge of the sidewall portion is tightly attached to the outer edge of the concave bottom portion and rolled outward to seal it. The concave bottom portion includes a circular bottom surface at the center and an inclined connecting surface. A pressure relief groove is provided on the outer surface of the circular bottom surface. The dimensions of the dome, sidewall portion, circular bottom surface, inclined connecting surface, and pressure relief groove satisfy a specific proportional relationship. Therefore, the pressure vessel obtained by selecting the size values ​​of each part within a limited range can have better safety. Industry personnel no longer need to conduct excessive sampling and testing. They can directly select the size values ​​of the pressure vessel according to the limitations of this invention, which greatly reduces the product testing cost.

[0123] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the nature and scope of the present invention. Various modifications made to the above embodiments by those skilled in the art after reading this specification are all within the scope of protection of the present invention.

Claims

1. A pressure vessel capable of releasing pressure, characterized in that, The pressure vessel includes a circular top and a sidewall portion integrally connected from top to bottom, and also includes a concave bottom portion that is rolled and sealed to the bottom of the sidewall portion. The top of the circular top is provided with a pressure relief port. The sidewall portion is cylindrical. The lower edge of the sidewall portion is tightly fitted to the outer edge of the concave bottom portion and is rolled outwards for a sealed connection. The concave bottom portion includes a circular bottom surface at its center and an inclined connecting surface. A pressure relief groove is provided on the outer surface of the circular bottom surface. The dimensions of the pressure vessel satisfy: =[2, 5], =[2, 4], =[0.5, 0.75], =[4, 20]; ; ; ; ; The height of the dome is a1, and the value of a1 is in the range of [5mm, 40mm]. The height of the sidewall portion is a2, and the value of a2 ranges from [50mm, 300mm]. The diameter of the circular base is a3, and the value of a3 is in the range of [3mm, 60mm]. The maximum diameter of the inclined connecting surface is a4, and the value of a4 is in the range of [30mm, 125mm]. The diameter of the sidewall portion is a5, and the value of a5 ranges from [35mm to 130mm]. The distance between the circular bottom surface and the bottommost surface of the pressure vessel is a6, and the value of a6 ranges from [2mm, 30mm]. The total length of the pressure relief groove is a7, and the value of a7 is in the range of [1.5mm, 45mm]. The thickness of the sidewall is b1, and the value of b1 ranges from [0.18 mm to 0.38 mm]. The thickness of the concave bottom is b2, and the value of b2 is in the range of [0.3mm, 0.8mm].

2. A pressure-relief vessel as described in claim 1, characterized in that, The pressure relief grooves are straight grooves, arc grooves, X-shaped grooves, and V-shaped grooves.

3. A pressure-relief vessel as described in claim 2, characterized in that, The central angle corresponding to the arc groove The angle range is The corresponding radius R ranges from R=[0.5, 5].

4. A pressure-relief vessel as described in claim 2, characterized in that, The cross-sectional shape of the pressure relief groove is an isosceles trapezoid, and the width of the pressure relief groove gradually decreases from the groove opening to the bottom of the groove.

5. A pressure-relief vessel as described in claim 2, characterized in that, The cross-sectional shape of the pressure relief groove is hook-shaped or U-shaped.

6. A pressure-relief vessel as described in claim 4, characterized in that, The dimensions of the pressure vessel satisfy: ; The depth of the pressure relief groove is b3, and the value of b3 ranges from [0.25mm, 0.75mm]. The thickness of the circular bottom surface at the pressure relief groove is b4, and the value of b4 ranges from [0.05mm, 0.4mm]. The width of the groove opening of the pressure relief groove is a8, and the value of a8 is in the range of [0.1mm, 3mm]. The width of the bottom of the pressure relief groove is b6, and the value of b6 ranges from [0.1mm to 1mm].

7. A pressure-relief vessel as described in claim 5, characterized in that, The dimensions of the pressure vessel satisfy: , ; The depth of the pressure relief groove is b3, and the value of b3 ranges from [0.25mm, 0.75mm]. The width of the groove opening of the pressure relief groove is a8, and the value of a8 ranges from [0.1mm to 5mm].

8. A pressure-relief vessel as described in any one of claims 6-7, characterized in that, The depth of the arc groove gradually increases from the two ends to the midpoint, and the depth of the two ends of the arc groove is b5, with the value of b5 ranging from [0.1mm, 0.45mm].

9. A pressure-relief vessel as described in any one of claims 6-7, characterized in that, The arc groove has a consistent depth from both ends to the midpoint, and the value of b3 ranges from [0.3mm, 0.6mm].

10. A pressure-relief vessel as described in claim 1, characterized in that, The dimensions of the pressure vessel satisfy: , .

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