Explosion Prevention device for equipment protection

Abstract

The present invention relates to an explosion prevention device for equipment protection, comprising: a housing having a discharge passage formed in the center for discharging gas; a cover coupled to the upper side of the housing to open and close the discharge passage; an electromagnet for fastening the cover to the housing; a support assembly coupled to the upper side of the housing; and a cover connecting part having one longitudinal side slidably coupled to the support assembly and the other longitudinal side coupled to the cover.

Description

Technology Field

[0001] The present invention relates to an explosion prevention device for equipment protection that can prevent damage to equipment caused by excessive pressure by rapidly discharging expanded pressure gas that has exploded inside a pulverizer. Background Technology

[0002] If an explosion occurs inside the pulverizer, not only may safety accidents resulting in worker injury occur, but auxiliary equipment such as the PA Inlet Duct and Cold Air Duct Expansion Joint may also be damaged, leading to a shutdown of power generation.

[0003] Conventionally, rupture discs were used to solve these problems, but since rupture discs are disposable products, they not only incur high consumption costs but also frequently cause duct damage because they do not operate smoothly when excessive pressure occurs.

[0004] Therefore, there is a growing need to develop new technology that can minimize damage to surrounding equipment by relieving the pressure generated inside the pulverizer in the event of a sudden fire and explosion, and assist workers in evacuating by providing information about the explosion to the surroundings. Prior art literature

[0005] Patent Document 1) Korean Registered Patent Publication No. 10-2068276 (Title: Flame-extinguishing exhaust device, Registration Date: 2020. 01. 14) Patent Document 2) Korean Registered Patent Publication No. 10-2241438 (Title: Flame-extinguishing exhaust device for gas-insulated switchgear for power equipment, Registration Date: 2021. 04. 12) The problem to be solved

[0006] The present invention has been devised to solve the problems described above, and the objective of the present invention is to provide an explosion prevention device capable of preventing damage to surrounding equipment by releasing gas when the internal pressure of the duct increases.

[0007] In addition, it provides an explosion prevention device that can evacuate workers by providing information about the occurrence of an explosion to the surroundings when the internal pressure of the duct increases. means of solving the problem

[0008] The explosion prevention device (1000) for equipment protection according to the present invention, for achieving the above-mentioned purpose, is characterized by comprising: a housing (100) having a discharge passage (101) formed in the center through which gas is discharged; a cover (200) coupled to the upper side of the housing (100) to open and close the discharge passage (101); and an electromagnet (300) that fastens the cover (200) to the housing (100).

[0009] Additionally, it is characterized by including a support assembly (400) coupled to the upper side of the housing (100); and a cover connecting part (500) having one longitudinal side slidably coupled to the support assembly (400) and the other longitudinal side coupled to the cover (200).

[0010] Additionally, the cover connecting portion (500) is characterized by including: a connecting bar (510) having one longitudinal side slidably coupled to the support assembly (400) and the other longitudinal side coupled to the cover (200); and an elastic member (520) coupled to the other side of the connecting bar (510).

[0011] Additionally, it is characterized by including a cylinder module (600) coupled to the support assembly (400), wherein the piston rod (610) is positioned to face the cover (200).

[0012] Additionally, it is characterized by including an alert unit (700) coupled to the upper side of the cylinder module (600); and a control unit (800) that operates the alert unit (700) when the connection between the cover (200) and the housing (100) is released.

[0013] In addition, it is characterized by including a pressure information collecting means (900) for collecting internal pressure information of the housing (100); and a control unit (800) for operating the notification unit (700) when the pressure information received from the pressure information collecting means (900) exceeds a set value.

[0014] Additionally, the control unit (800) is characterized by opening the internal valve of the cylinder module (600) when the pressure information received from the pressure information collection means (900) exceeds a set value.

[0015] Additionally, the housing (100) is characterized by comprising: a lower housing (100A) located on the lower side; an upper housing (100B) coupled to the upper side of the lower housing (100A); and a first insulating plate (100C) located between the lower housing (100A) and the upper housing (100B).

[0016] Additionally, the housing (100) is characterized by including a second insulation plate (100D) that is coupled to the inner lower surface of the insulation plate (100C).

[0017] In addition, a tube insertion space (A) is formed between the second insulation plate (100D) and the lower housing (100A); this is a characteristic feature.

[0018] Additionally, the cover (200) is characterized by including an upper cover (210) coupled to a cover connecting part (500); and a third insulation plate (220) coupled to the lower side of the upper cover (210) and inserted into the discharge passage (101).

[0019] In addition, the upper cover (210) is characterized by including a plurality of insertion grooves formed on the lower edge.

[0020] Additionally, the insertion groove is characterized by including a getter insertion groove (211) located on the inner side; and an O-ring insertion groove (212) formed spaced apart on the outer side of the getter insertion groove (211). Effects of the invention

[0021] The explosion prevention device for equipment protection according to the present invention has the advantage of preventing damage to surrounding equipment that may occur due to increased internal pressure in the duct, as it can discharge gas when the internal pressure of the pulverizer duct exceeds a set value.

[0022] In addition, it has the advantage of preventing safety accidents that could occur due to gas release by notifying workers if the internal duct pressure exceeds a set value or if the door opens, thereby assisting in their evacuation.

[0023] In addition, since the housing and cover are connected using an electromagnet, there is an advantage in that the housing and cover can be reassembled and reused after being separated for gas release.

[0024] In addition, by using an insulating plate to restrict the transfer of heat from inside the duct to the outside of the housing, it has the advantage of minimizing deformation of the device that may occur as heat spreads outward. Brief explanation of the drawing

[0025] FIG. 1 is a perspective view showing an explosion prevention device for equipment protection according to the present invention. FIG. 2 is an exploded perspective view showing an explosion prevention device for equipment protection according to the present invention. FIG. 3 is a front view showing an explosion prevention device for equipment protection according to the present invention. FIG. 4 is a cross-sectional view showing an explosion prevention device for equipment protection according to the present invention. FIG. 5 is a partial enlarged view showing an explosion prevention device for equipment protection according to the present invention. Specific details for implementing the invention

[0026] The advantages and features of the embodiments of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Throughout the specification, the same reference numerals refer to the same components.

[0027] In describing the embodiments of the present invention, specific descriptions of known functions or configurations will be omitted if it is determined that such detailed descriptions could unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions in the embodiments of the present invention, and these definitions may vary depending on the intentions or practices of the user or operator. Therefore, such definitions should be based on the content throughout this specification.

[0028] Hereinafter, an explosion prevention device (1000) for equipment protection according to the present invention will be described with reference to the attached drawings.

[0029] FIG. 1 is a perspective view showing an explosion prevention device for equipment protection according to the present invention, FIG. 2 is an exploded perspective view showing an explosion prevention device for equipment protection according to the present invention, FIG. 3 is a front view showing an explosion prevention device for equipment protection according to the present invention, FIG. 4 is a cross-sectional view showing an explosion prevention device for equipment protection according to the present invention, and FIG. 5 is a partial enlarged view showing an explosion prevention device for equipment protection according to the present invention.

[0030] Referring to FIGS. 1 to 5, the explosion prevention device (1000) for equipment protection according to the present invention may include a housing (100) having a discharge passage (101) formed in the center through which gas is discharged, a cover (200) coupled to the upper side of the housing (100) to open and close the discharge passage (101), and an electromagnet (300) that fastens the cover (200) to the housing (100).

[0031] To explain in detail, the explosion prevention device (1000) for equipment protection according to the present invention is coupled to the hot air duct of the pulverizer, so that when an explosion occurs and the internal pressure of the duct exceeds a set value, the coupling between the cover (200) and the housing (100) is released, allowing the internal gas of the pulverizer to be discharged to the outside through the discharge passage (101).

[0032] At this time, the connection between the housing (100) and the cover (200) is achieved through the magnetic force of an electromagnet (300) connected to the edge of the cover (200), and the control unit can adjust the magnetic force of the electromagnet (300) to a value set by the user, and more specifically, can adjust the magnetic force of the electromagnet (300) so that when the pressure on the discharge passage (101) exceeds the set value, the connection between the housing (100) and the cover (200) is released and the discharge passage (101) is opened.

[0033] In addition, although the drawing shows multiple electromagnets (300) spaced apart in the circumferential direction on the edge of the cover (200), in addition to this, if the electromagnets (300) are formed in a ring shape to completely surround the edge of the cover (200), the fastening force and the sealing force of the contact area can be further increased.

[0034] In addition, the explosion prevention device (1000) for equipment protection according to the present invention may include a support assembly (400) coupled to the upper side of the housing (100), and a cover connecting part (500) in which one side in the longitudinal direction is slidably coupled to the support assembly (400) and the other side in the longitudinal direction is coupled to the cover (200).

[0035] To explain in detail, the cover (200) must be able to move up and down to easily open and close the discharge passage (101), and also must not undergo horizontal displacement during the process of moving up and down. Therefore, a cover connecting part (500) is attached to the upper side of the cover (200), and the cover connecting part (500) is slidably connected to the support assembly (400) so that the cover (200) can move only in the up and down direction.

[0036] At this time, the cover connecting portion (500) may include a connecting bar (510) in which one side in the longitudinal direction is slidably connected to the support assembly (400) and the other side in the longitudinal direction is connected to the cover (200), and an elastic member (520) connected to the other side of the connecting bar (510).

[0037] To explain in detail, when the pressure of the discharge passage (101) exceeds a set value and the cover (200) and the housing (100) are separated, the cover (200) may rapidly move upward along the connecting bar (510) due to the force of the high-pressure gas located inside the discharge passage (101) being released to the outside and collide with the support assembly (400), causing it to be damaged or deformed. Therefore, an elastic member (520) is attached to the connecting bar (510) so that the elastic member (520) can absorb the force of the cover (200) rising.

[0038] At this time, an elastic member fixing groove may be formed on the lower edge of the connecting bar (510) to fix a spring-shaped elastic member (520) at a certain position.

[0039] Additionally, the support assembly (400) may be composed of a plurality of assembly vertical parts (410) spaced apart in the circumferential direction and coupled to the upper side of the housing (100), a plurality of assembly horizontal parts (420) bent and coupled to the upper end of the assembly vertical parts (410), and an assembly connector part (430) connecting the plurality of assembly horizontal parts (420).

[0040] Additionally, the explosion prevention device (1000) for equipment protection according to the present invention may further include a cylinder module (600) coupled to the support assembly (400) and positioned so that the piston rod (610) faces the cover (200).

[0041] To explain in detail, the cylinder module (600) presses the cover (200) to prevent the cover (200) from moving out of the position where it closes the discharge passage (101).

[0042] Accordingly, the fastening state of the housing (100) and the cover (200) can be maintained by the force of the piston rod (610) pressing in addition to the magnetic force of the electromagnet (300).

[0043] In addition, since the piston rod (610) of the cylinder module (600) can move in the up and down direction, it is obvious that it can also be used to lower the cover (200) and bring the cover (200) into close contact with the housing (100).

[0044] In addition, the explosion prevention device (1000) for equipment protection according to the present invention may include an alert unit (700) coupled to the upper side of the cylinder module (600), and a control unit (800) that operates the alert unit (700) when the connection between the cover (200) and the housing (100) is released.

[0045] To explain in detail, since high temperature and high pressure gas is emitted while a worker is positioned nearby, the worker may suffer serious injury. Therefore, when the housing (100) and the cover (200) are released, the control unit (800) detects this and activates the notification unit (700) so that the worker does not approach the explosion prevention device (1000) for protecting the equipment from which the gas is emitted.

[0046] At this time, the control unit (800) can determine whether the housing (100) and the cover (200) are released in various ways, and in one embodiment, the connection between the housing (100) and the cover (200) can be determined based on movement information of the connecting bar (510) detected through the first sensor (501) connected to the cover connecting part (500), but it is not limited to this as it can be determined whether the connection between the housing (100) and the cover (200) is released in various other ways.

[0047] In addition, the explosion prevention device (1000) for equipment protection according to the present invention may include a pressure information collecting means (900) for collecting internal pressure information of the housing (100), and a control unit (800) for operating the notification unit (700) when the pressure information received from the pressure information collecting means (900) exceeds a set value.

[0048] To explain in detail, in order to ensure the safe evacuation of workers, evacuation information must be provided to surrounding workers before high temperature and high pressure gas is released. Therefore, when the pressure information collection means (900) measures the pressure of the discharge passage (101) of the housing (100) and provides it to the control unit (800), the control unit (800) determines whether to open the cover (200) based on the pressure information, and if it is determined that opening the cover (200) is necessary, the notification unit (700) is activated before separating the cover (200) from the housing (100) so that surrounding workers can evacuate.

[0049] At this time, in order to release the connection between the housing (100) and the cover (200), the pressure of the piston rod (610) on the cover (200) must also be released. Therefore, when the control unit (800) determines that the cover (200) needs to be opened, it operates the cylinder module (600) to release the force of the piston rod (610) pressing on the cover (200), and more specifically, it may be a method of operating the solenoid valve located inside the cylinder module (600) in the reverse direction.

[0050] Referring to FIGS. 4 and 5, the housing (100) may include a lower housing (100A) located on the lower side, an upper housing (100B) coupled to the upper side of the lower housing (100A), a first insulation plate (100C) located between the lower housing (100A) and the upper housing (100B), and a second insulation plate (100D) coupled to the inner lower surface of the insulation plate (100C).

[0051] To explain in detail, since the upper housing (100B) must be made of a metal material so that not only can the electromagnet (300) be coupled, but the support assembly (400) must also be fastened, the first insulating plate (100C) is positioned on the lower surface of the upper housing (100B) to prevent heat conduction.

[0052] And a second insulation plate (100D) made of ceramic is combined with the lower inner side of the first insulation plate (100C) to further increase the insulation capacity and at the same time prevent direct impact from being applied to the first insulation plate (100C) made of carbon.

[0053] At this time, a pipe insertion space (A) is formed between the second insulation plate (100D) and the lower housing (100A), and a pipe that forms a passage for gas discharged by connecting to the duct of the pulverizer is inserted into the pipe insertion space (A), so that alignment for connection is facilitated, and thus there is an advantage that the connection between the explosion prevention device (1000) for equipment protection of the present invention and the duct can be made more stably.

[0054] Additionally, the cover (200) may include an upper cover (210) coupled to a cover connecting part (500), and a third insulation plate (220) coupled to the lower side of the upper cover (210) and inserted into the discharge passage (101).

[0055] To explain in detail, the edge of the upper cover (210) is in close contact with the housing (100) to close the discharge passage (101), and a third insulation plate (220) attached to the lower center of the upper cover (210) is inserted into the discharge passage (101) to increase the sealing power of the discharge passage (101) and simultaneously block heat transfer to the upper cover (210).

[0056] At this time, the third insulation plate (220) may be made of ceramic material, but is not limited to various other materials.

[0057] Additionally, the upper cover (210) may have a plurality of insertion grooves formed on its lower edge, and the insertion grooves may include a getter insertion groove (211) located on the inside and an O-ring insertion groove (212) formed spaced apart on the outside of the getter insertion groove (211).

[0058] To explain in detail, a ring-shaped ceramic getter is fitted into the getter insertion groove (211) to block heat transfer and gas discharge through the contact area.

[0059] In addition, an O-ring made of rubber or silicone is fitted into the O-ring insertion groove (212) to more completely block the discharge of gas.

[0060] In addition, the inner side described above refers to the direction in which the center point is located, and the outer side may indicate the direction in which the edge is located.

[0061] The present invention is not limited to the embodiments described above and has a diverse scope of application. Furthermore, it is understood that anyone with ordinary knowledge in the field to which the present invention pertains can make various modifications without departing from the essence of the invention as claimed in the claims. Explanation of the symbols

[0062] 100 : Housing 100A: Lower housing 100B: Upper housing 100C: First insulation plate 100D: Second insulation plate 101 : Exhaust passage 200 : Cover 210 : Upper cover 211: Getter insertion groove 212 : O-ring insertion groove 220 : 3rd insulation plate 300 : electromagnet 400 : Support Assembly 500 : Cover connection part 510 : Connection bar 520 : Elastic member 600 : Cylinder Module 610: Piston rod 700 : Notification Department 800 : Control unit 900 : Means of collecting notification information

Claims

Claim 1 An explosion prevention device for equipment protection comprising: a housing (100) having a discharge passage (101) formed in the center through which gas is discharged; a cover (200) coupled to the upper side of the housing (100) to open and close the discharge passage (101); and an electromagnet (300) that fastens the cover (200) to the housing (100). Claim 2 An explosion prevention device for equipment protection according to claim 1, comprising: a support assembly (400) coupled to the upper side of the housing (100); and a cover connecting part (500) having one longitudinal side slidably coupled to the support assembly (400) and the other longitudinal side coupled to the cover (200). Claim 3 In claim 2, the cover connecting part (500) comprises: a connecting bar (510) having one longitudinal side slidably coupled to the support assembly (400) and the other longitudinal side coupled to the cover (200); and an elastic member (520) coupled to the other side of the connecting bar (510); an explosion prevention device for equipment protection. Claim 4 An explosion-proof device for equipment protection, comprising: a cylinder module (600) coupled to the support assembly (400) and positioned so that the piston rod (610) faces the cover (200) in the second paragraph. Claim 5 An explosion prevention device for equipment protection, comprising: an alert unit (700) coupled to the upper side of the cylinder module (600) in claim 4; and a control unit (800) that operates the alert unit (700) when the connection between the cover (200) and the housing (100) is released. Claim 6 An explosion prevention device for equipment protection, comprising: a pressure information collecting means (900) for collecting internal pressure information of the housing (100); and a control unit (800) for operating the notification unit (700) when the pressure information received from the pressure information collecting means (900) exceeds a set value. Claim 7 An explosion prevention device for equipment protection, characterized in that, in claim 6, the control unit (800) opens the internal valve of the cylinder module (600) when the pressure information received from the pressure information collection means (900) exceeds a set value. Claim 8 In claim 2, the explosion prevention device for equipment protection comprises: a lower housing (100A) located on the lower side; an upper housing (100B) coupled to the upper side of the lower housing (100A); and a first insulation plate (100C) located between the lower housing (100A) and the upper housing (100B). Claim 9 In claim 2, the explosion-proof device for equipment protection comprises: a second insulation plate (100D) coupled to the inner lower surface of the insulation plate (100C) of the housing (100). Claim 10 An explosion-proof device for equipment protection, characterized in that, in claim 2, a pipe insertion space (A) is formed between the second insulation plate (100D) and the lower housing (100A).

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