Explosion-proof valve and explosion-proof structure including the same

Abstract

An explosion-proof valve and an explosion-proof structure are disclosed. The disclosed explosion-proof valve includes a valve body and a sleeve configured to be coupled to the valve body.

Description

Technology Field

[0001] An explosion-proof valve and an explosion-proof structure are disclosed. More specifically, an explosion-proof valve and an explosion-proof structure configured to have not only an explosion-proof function but also a positive pressure control function are disclosed. Background Technology

[0002] Generally, explosion-proof valves serve to protect personnel and equipment within a facility by blocking the rapid influx of blast pressure from the outside caused by conventional weapons or nuclear explosions. These valves are installed at all intake and exhaust ports to defend the entire facility against external impacts. Furthermore, explosion-proof valves are widely utilized as safety devices to protect downstream equipment by blocking or mitigating pressure in the event of an explosion within the piping system or the influx of explosive pressure from the outside.

[0003] Specifically, explosion-proof valves generally suppress the transmission of explosion pressure into the protected area through internal structures such as moving discs, bursting discs, or backflow prevention flaps. At the same time, by supplying overpressure air (pressure higher than atmospheric pressure) into the protected area, they induce the explosion pressure to be discharged to the outside instead of flowing into the area. In other words, if a pressure exceeding a certain level is applied, the explosion-proof valve operates by releasing that pressure, thereby maintaining the stability of the protected area.

[0004] However, conventional explosion-proof valves typically focus only on explosion-proof functions that block or mitigate explosion pressure, and do not consider air flow control for maintaining a positive pressure state, i.e., positive pressure regulation. Consequently, when conventional explosion-proof valves are applied to spaces within a building where maintaining positive pressure is critical (e.g., clean rooms, chemical storage facilities, CBRN protection facilities, etc.), one-way airflow may not be secured, or operational problems may occur due to excessive pressure differences.

[0005] In other words, while explosion-proof valves based on conventional technology are effective in explosion situations, they cannot adequately control or maintain normal positive pressure conditions; therefore, there is an increasing technical need for a structure that can simultaneously satisfy both explosion prevention and positive pressure control. The problem to be solved

[0006] One embodiment of the present invention provides an explosion-proof valve configured to have not only an explosion-proof function but also a positive pressure control function.

[0007] In addition, another embodiment of the present invention provides an explosion-proof structure including the explosion-proof valve. means of solving the problem

[0008] One side wall of the present invention is,

[0009] Valve body; and

[0010] An explosion-proof valve is provided that includes a sleeve configured to be coupled to the valve body.

[0011] The above valve body may include a hollow valve housing, a disc coupled to the right inner wall of the hollow valve housing, a positive pressure regulating plate disposed inside the left side of the hollow valve housing so as to face the disc, and a first flange coupled to the right end of the hollow valve housing.

[0012] The above hollow valve housing may include a right hollow valve housing with a large inner diameter and a left hollow valve housing with a small inner diameter.

[0013] The explosion-proof valve may further include a plurality of springs configured to connect the disc to the inner wall of the hollow valve housing.

[0014] The explosion-proof valve can be configured to allow fluid to pass between the hollow valve housing and the disc, and between the hollow valve housing and the positive pressure regulating plate.

[0015] The above positive pressure control plate can be movably coupled to the above hollow valve housing.

[0016] The explosion-proof valve further includes a bracket and a first support member, wherein the bracket is coupled to the outer wall of the hollow valve housing by a first bolt, and the first support member has one end hinged to the bracket to allow for adjustment of the direction of movement and the other end bolted to the positive pressure control plate.

[0017] The above bracket has a U-shaped cross section and includes a pair of side walls facing each other and a connecting wall located between them, and the first support member has a through hole formed at one end and is connected through the side walls facing each other of the bracket with a second bolt, so that the first support member can rotate in an up-and-down direction relative to the bracket with the second bolt as an axis, and a third bolt is connected to the connecting wall of the bracket in a direction perpendicular to the second bolt, so that the direction of movement of the first support member can be adjusted according to the degree of tightening of the third bolt.

[0018] The sleeve may include a hollow sleeve body, a pressure dampener coupled to the right inner wall of the hollow sleeve body, and a second flange coupled to the left end of the hollow sleeve body.

[0019] The valve body and the sleeve can be joined to each other by bolting the first flange and the second flange together.

[0020] The pressure attenuator comprises a container-shaped structure with a closed left end and an open right end, and a plurality of second supports, wherein the container-shaped structure is fixed to the right inner wall of the hollow sleeve body by the second supports, and the explosion-proof valve may be configured such that fluid can pass between the hollow sleeve body without the hollow sleeve body being closed by the pressure attenuator.

[0021] The above sleeve includes a first sleeve and a second sleeve, wherein the first sleeve includes a first hollow sleeve body, a second flange coupled to the left end of the first hollow sleeve body, and a third flange coupled to the right end of the first hollow sleeve body, and the second sleeve may include a second hollow sleeve body, a pressure dampener coupled to the right inner wall of the second hollow sleeve body, and a fourth flange coupled to the left end of the second hollow sleeve body.

[0022] The valve body and the first sleeve are joined to each other by bolting the first flange and the second flange together, and the first sleeve and the second sleeve can be joined to each other by bolting the third flange and the fourth flange together.

[0023] Another aspect of the present invention is,

[0024] Concrete structures; and

[0025] An explosion-proof structure including the explosion-proof valve is provided, which is positioned to penetrate the concrete structure. Effects of the invention

[0026] An explosion-proof valve according to one embodiment of the present invention may have not only an explosion-proof function but also a positive pressure control function. Brief explanation of the drawing

[0027] FIG. 1 is a perspective view of an explosion-proof valve according to a first embodiment of the present invention. FIG. 2a is a side view showing only the valve body of the explosion-proof valve of FIG. 1 in enlargement. FIG. 2b is a bottom view showing only the valve body of the explosion-proof valve of FIG. 1 in enlargement. FIG. 2c is a plan view showing only the valve body of the explosion-proof valve of FIG. 1 in enlargement. FIG. 2d is an enlarged plan view of the hinge joint between the bracket and the first support of the explosion-proof valve of FIG. 1. FIG. 2e is an enlarged side view showing the hinge joint between the bracket and the first support of the explosion-proof valve of FIG. 1. FIG. 3a is a side view showing only the sleeve of the explosion-proof valve of FIG. 1 in enlarged view. FIG. 3b is a bottom view showing only the sleeve of the explosion-proof valve of FIG. 1 in enlarged view. Figure 4 is a cross-sectional view of an explosion-proof structure including the explosion-proof valve of Figure 1. FIG. 5 is a cross-sectional view of an explosion-proof structure including an explosion-proof valve according to a second embodiment of the present invention. FIG. 6 is a cross-sectional view of an explosion-proof structure including an explosion-proof valve according to a third embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, an explosion-proof valve and an explosion-proof structure according to one embodiment of the present invention will be described in detail with reference to the drawings.

[0029] In this specification, the terms "left" and "right" do not refer to absolute directions, but rather to relative directions based on the drawings. Therefore, if the arrangement direction or observation direction of the relevant article or component changes, the positional relationship between "left" and "right" may change.

[0030] FIG. 1 is a perspective view of an explosion-proof valve (100) according to a first embodiment of the present invention.

[0031] Referring to FIG. 1, an explosion-proof valve (100) according to a first embodiment of the present invention includes a valve body (110) and a sleeve (120).

[0032] The sleeve (120) can be configured to be coupled to the valve body (110).

[0033] FIG. 2a is a side view showing only the valve body (110) of the explosion-proof valve (100) of FIG. 1 in enlargement, FIG. 2b is a bottom view showing only the valve body (110) of the explosion-proof valve (100) of FIG. 1 in enlargement, FIG. 2c is a top view showing only the valve body (110) of the explosion-proof valve (100) of FIG. 1 in enlargement, FIG. 2d is a top view showing the hinge joint of the bracket (116) and the first support (117) of the explosion-proof valve (100) of FIG. 1 in enlargement, FIG. 2e is a side view showing the hinge joint of the bracket (116) and the first support (117) of the explosion-proof valve (100) of FIG. 1 in enlargement.

[0034] Referring to FIGS. 2a through 2e, the valve body (110) may include a hollow valve housing (111), a disc (112), a positive pressure regulating plate (113), and a first flange (114).

[0035] The hollow valve housing (111) may include a right hollow valve housing (111a) and a left hollow valve housing (111b).

[0036] The inner diameter of the right hollow valve housing (111a) may be larger than the inner diameter of the left hollow valve housing (111b).

[0037] Additionally, the right hollow valve housing (111a) can be configured so that the inner diameter gradually increases from left to right, and the left hollow valve housing (111b) can be configured so that the inner diameter remains constant from the left end to the right end.

[0038] The disc (112) plays a leading role in dampening the blast pressure.

[0039] The disc (112) can be attached to the right inner wall of the hollow valve housing (111) (specifically, the inner wall of the right hollow valve housing (111a)). This disc (112) may be a dome-shaped curved plate laid horizontally such that the open end is located on the left and the closed end is located on the right.

[0040] In particular, referring to FIG. 2b, the valve body (110) may further include a plurality of springs (115).

[0041] A plurality of springs (115) may be configured to connect the disc (112) to the right inner wall of the hollow valve housing (111) (specifically, the inner wall of the right hollow valve housing (111a)). With this configuration, when a blast pressure generated on the right side of the disc (112) acts on the disc (112), the plurality of springs (115) connected to the disc (112) relax, causing the disc (112) to move to the left, and the blast pressure is reduced during this process. Subsequently, when the blast pressure drops below a reference value, the plurality of springs (115) contract again, causing the disc (112) to return to its original position.

[0042] Additionally, the explosion-proof valve (100) can be configured to allow fluid to pass between the hollow valve housing (111) and the disc (112).

[0043] Additionally, the positive pressure control plate (113) may be positioned in the left interior of the hollow valve housing (111) (specifically, in the interior of the left hollow valve housing (111b)) so as to face the disk (112). This positive pressure control plate (113) may be a dome-shaped curved plate laid horizontally such that the open end is located on the right and the closed end is located on the left.

[0044] Additionally, the explosion-proof valve (100) can be configured to allow fluid to pass between the hollow valve housing (111) (specifically, the left hollow valve housing (111b)) and the positive pressure control plate (113).

[0045] Additionally, the positive pressure control plate (113) can be movably coupled to the hollow valve housing (111) (specifically, the outer wall of the right hollow valve housing (111a)).

[0046] Specifically, the explosion-proof valve (100) further includes a bracket (116) and a first support (117), the bracket (116) is coupled to the outer wall of a hollow valve housing (111) (specifically, a right hollow valve housing (111a)) by a first bolt (bt1), and the first support (117) has one end hinged to the bracket (116) to allow for adjustment of the direction of movement, and the other end can be bolted to a positive pressure control plate (113).

[0047] More specifically, the bracket (116) has a U-shaped cross section and includes a pair of side walls facing each other and a connecting wall located between them, and the first support member (117) has a through hole formed at one end and is connected through the side walls facing each other of the bracket (116) by a second bolt (bt2), so that the first support member (117) can rotate up and down relative to the bracket (116) with the second bolt (bt2) as an axis, and a third bolt (bt3) is connected to the connecting wall of the bracket (116) in a direction perpendicular to the second bolt (bt2), so that the direction of movement of the first support member (117) can be adjusted according to the degree of fastening of the third bolt (bt3).

[0048] More specifically, when the third bolt (bt3) is tightened strongly, the tip of the third bolt (bt3) pushes one end of the first support (117), causing the first support (117) to rotate to the right around the second bolt (bt2) as an axis. Consequently, the positive pressure control plate (113) moves to the right, increasing the gap between the left hollow valve housing (111b) and the positive pressure control plate (113), thereby increasing the fluid flow rate (specifically, the air flow rate). On the other hand, when the third bolt (bt3) is loosened, the force pushing one end of the first support (117) decreases, causing the first support (117) to rotate to the left. Consequently, the positive pressure control plate (113) moves to the left, reducing the gap between the left hollow valve housing (111b) and the positive pressure control plate (113), thereby decreasing the fluid flow rate.

[0049] The first flange (114) can be connected to the right end of the hollow valve housing (111) (specifically, the right hollow valve housing (111a)).

[0050] FIG. 3a is a side view showing only the sleeve (120) of the explosion-proof valve (100) of FIG. 1 in enlargement, and FIG. 3b is a bottom view showing only the sleeve (120) of the explosion-proof valve (100) of FIG. 1 in enlargement.

[0051] Referring to FIGS. 3a and 3b, the sleeve (120) may include a hollow sleeve body (121), a pressure dampener (122), and a second flange (123).

[0052] The hollow sleeve body (121) may be cylindrical, but the present invention is not limited thereto.

[0053] The pressure damper (122) performs the role of assisting in reducing the explosion pressure.

[0054] The pressure damper (122) can be attached to the right inner wall of the hollow sleeve body (121).

[0055] Specifically, the pressure dampener (122) may include a container-shaped structure (122a) and a plurality of second supports (122b).

[0056] The vessel-shaped structure (122a) may be a closed-end cylinder or a polygonal vessel laid horizontally such that the open end is located on the right and the closed end is located on the left.

[0057] The container-shaped structure (122a) can be fixed to the right inner wall of the hollow sleeve body (121) by the second supports (122b).

[0058] Additionally, the explosion-proof valve (100) can be configured so that the hollow sleeve body (121) is not closed by the pressure attenuator (122) and fluid can pass between the hollow sleeve body (121) and the pressure attenuator (122). Accordingly, most of the explosion pressure generated on the right side of the explosion-proof valve (100) is reduced as it collides with the pressure attenuator (122) (specifically, the container-shaped structure (122a)), and then moves toward the disc (112) of the valve body (110) through the space between the hollow sleeve body (121) and the pressure attenuator (122).

[0059] The second flange (123) can be attached to the left end of the hollow sleeve body (121).

[0060] The valve body (110) and the sleeve (120) can be joined to each other by bolting the first flange (114) and the second flange (123).

[0061] Alternatively, the sleeve (120) may include a first sleeve (not shown) and a second sleeve (not shown) (see FIG. 5).

[0062] The first sleeve may include a first hollow sleeve body (not shown), a second flange (not shown), and a third flange (not shown).

[0063] The second flange can be coupled to the left end of the first hollow sleeve body.

[0064] The third flange can be coupled to the right end of the first hollow sleeve body.

[0065] The second sleeve may include a second hollow sleeve body (not shown), a pressure dampener (not shown), and a fourth flange (not shown).

[0066] The pressure attenuator described above is identical to the pressure attenuator (122) described above and can be coupled to the right inner wall of the second hollow sleeve body.

[0067] The above-mentioned fourth flange can be coupled to the left end of the above-mentioned second hollow sleeve body.

[0068] The valve body and the first sleeve can be joined to each other by bolting the first flange and the second flange together.

[0069] Similarly, the first sleeve and the second sleeve can be joined to each other by bolting the third flange and the fourth flange together.

[0070] FIG. 4 is a cross-sectional view of an explosion-proof structure (10) including the explosion-proof valve (100) of FIG. 1.

[0071] Referring to FIG. 4, it includes an explosion-proof valve (100) and a concrete structure (200).

[0072] The explosion-proof valve (100) can be positioned to penetrate the concrete structure (200).

[0073] The explosion pressure generated on the right side of the explosion-proof valve (100) is primarily reduced by colliding with the pressure dampener (122) (specifically, the container-shaped structure (122a)), then moves along the space between the hollow sleeve body (121) and the pressure dampener (122) toward the disc (112) of the valve body (110), and then collides with the disc (112) to reduce the pressure secondarily. Meanwhile, air flows from the left side to the right side of the explosion-proof valve (100) and moves by sequentially passing through the space between the hollow valve housing (111) and the positive pressure control plate (113) and the space between the hollow valve housing (111) and the disc (112).

[0074] FIG. 5 is a cross-sectional view of an explosion-proof structure (10) including an explosion-proof valve (100) according to a second embodiment of the present invention.

[0075] The explosion-proof structure (10) illustrated in FIG. 5 differs from the explosion-proof structure (10) illustrated in FIG. 4 in that the sleeve (120) constituting the explosion-proof valve (100) is divided into two parts, a first sleeve and a second sleeve. A structure in which the sleeve (120) is composed of two parts in this manner has been described in detail above.

[0076] FIG. 6 is a cross-sectional view of an explosion-proof structure (10) including an explosion-proof valve (100) according to a third embodiment of the present invention.

[0077] The explosion-proof structure (10) shown in Fig. 6 differs from the explosion-proof structure (10) shown in Fig. 4 in that the pressure dampener (122') included in the explosion-proof valve (100) is formed as an angled tube having a polygonal cross-section rather than a closed cylinder.

[0078] The present invention has been described with reference to the drawings, but this is merely illustrative, and those skilled in the art will understand that various modifications and equivalent alternative embodiments are possible therefrom. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Explanation of the symbols

[0079] 100: Explosion-proof valve 110: Valve body 111: Hollow valve housing 111a: Right hollow valve housing 111b: Left hollow valve housing 112: Disc 113: Positive pressure control plate 114, 123: Flange 115: Spring 116: Bracket 117: First support 120: Sleeve 121: Hollow sleeve body 122, 122': Pressure dampener 122a: Container-type structure 122b: Second support bt1, bt2, bt3: Bolt 10: Explosion-proof structure 200: Concrete structure

Claims

Claim 1 Valve body; and includes a sleeve configured to be coupled to the valve body, wherein the valve body comprises a hollow valve housing, a disc coupled to the right inner wall of the hollow valve housing, a positive pressure regulating plate disposed inside the left side of the hollow valve housing so as to face the disc, and a first flange coupled to the right end of the hollow valve housing, wherein the positive pressure regulating plate is movably coupled to the hollow valve housing, and further comprises a bracket and a first support member, wherein the bracket is coupled to the outer wall of the hollow valve housing by a first bolt, and the first support member has one end hinge-coupled to the bracket to allow adjustment of the direction of movement and the other end bolt-coupled to the positive pressure regulating plate, wherein the bracket has a U-shaped cross-section and includes a pair of side walls facing each other and a connecting wall located between them, wherein the first support member has a through hole formed at one end and is coupled through to the side walls facing each other of the bracket by a second bolt, and accordingly, the first support member is rotatable in the up and down direction relative to the bracket with respect to the second bolt as an axis, and the connecting wall of the bracket An explosion-proof valve in which a third bolt is connected in a direction perpendicular to the second bolt, and the direction of movement of the first support is controlled according to the degree of tightening of the third bolt. Claim 2 delete Claim 3 In claim 1, the explosion-proof valve comprises a right hollow valve housing with a large inner diameter and a left hollow valve housing with a small inner diameter. Claim 4 An explosion-proof valve according to claim 1, further comprising a plurality of springs configured to connect the disk to the inner wall of the hollow valve housing. Claim 5 In claim 1, the explosion-proof valve is configured to allow fluid to pass between the hollow valve housing and the disc and between the hollow valve housing and the positive pressure regulating plate. Claim 6 delete Claim 7 delete Claim 8 delete Claim 9 In claim 1, the sleeve is an explosion-proof valve comprising a hollow sleeve body, a pressure damper coupled to the right inner wall of the hollow sleeve body, and a second flange coupled to the left end of the hollow sleeve body. Claim 10 In claim 9, the valve body and the sleeve are joined to each other by bolting the first flange and the second flange to form an explosion-proof valve. Claim 11 In claim 9, the pressure attenuator comprises a container-shaped structure with a left end closed and a right end open and a plurality of second supports, wherein the container-shaped structure is fixed to the right inner wall of the hollow sleeve body by the second supports, and wherein the explosion-proof valve is configured such that the hollow sleeve body is not closed by the pressure attenuator and fluid can pass between them. Claim 12 In claim 1, the sleeve comprises a first sleeve and a second sleeve, wherein the first sleeve comprises a first hollow sleeve body, a second flange coupled to the left end of the first hollow sleeve body, and a third flange coupled to the right end of the first hollow sleeve body, and the second sleeve comprises a second hollow sleeve body, a pressure attenuator coupled to the right inner wall of the second hollow sleeve body, and a fourth flange coupled to the left end of the second hollow sleeve body, an explosion-proof valve. Claim 13 In claim 12, the valve body and the first sleeve are joined to each other by bolting the first flange and the second flange together, and the first sleeve and the second sleeve are joined to each other by bolting the third flange and the fourth flange together, in an explosion-proof valve. Claim 14 A concrete structure; and an explosion-proof structure comprising an explosion-proof valve according to any one of claims 1, 3 to 5 and 9 to 13, disposed to penetrate the concrete structure.

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