Compact Flare Stack for Mounting in Blower Structures

Abstract

The present invention relates to a compact flare stack mounted with a blower structure, wherein the flare stack mounted at the gas outlet of the present invention comprises a structure combining a motor mounting housing, a fuel housing, and an air housing, which are cylindrical in shape with progressively increasing diameters, and further comprises one or more air supply pipes inserted from the outside through side insertion holes of the air housing, the fuel housing, and the motor mounting housing, wherein exhaust gas is transmitted from the gas outlet to the space between the fuel housing and the motor mounting housing, and by the rotation of a propeller coupled to the rotating shaft of a motor mounted in the inner space of the motor mounting housing, which has a closed bottom surface, mixing of air supplied through the air supply pipes is achieved in the space between the motor mounting housing and the motor, and mixing of air supplied through one or more air holes formed on the side of the air housing is achieved in the space between the air housing and the fuel housing.

Description

Technology Field

[0001] The present invention relates to a flare stack, and more specifically, to a compact flare stack with a blower structure that utilizes low power of a motor for the safe discharge and clean combustion of flammable gases ignited and combusted in oil refineries, petrochemical plants, etc. Background Technology

[0002] A flare stack is a chimney-shaped structure installed for the purpose of igniting and burning combustible gas for safety in oil refineries or petrochemical plants, and includes a structure installed at the outlet, and operates to automatically release the gas inside the device into the atmosphere by incinerating it to prevent explosions.

[0003] Although research on flare stacks for complete combustion and reduction of soot emissions has been conducted in the past, there are problems such as the difficulty of achieving complete combustion, high spatial costs, and high power consumption.

[0004] As relevant prior art, Patent Application No. 10-2007-0056209, No. 10-2010-0044028, etc. may be referenced. The problem to be solved

[0005] Accordingly, the present invention has been devised to solve the aforementioned problems, and the objective of the present invention is to provide a compact flare stack with a blower structure that utilizes low power of a motor, which reduces the cost or space required to install additional equipment such as pipelines, is easy to mount, and can induce complete combustion by introducing additional air rather than steam. means of solving the problem

[0006] First, to summarize the features of the present invention, a flare stack mounted on a gas outlet according to one aspect of the present invention for achieving the above objective comprises a structure combining a motor-mounting housing, a fuel housing, and an air housing, which are cylindrical in shape with progressively increasing diameters, and further comprises one or more air supply pipes inserted from the outside through side insertion holes of the air housing, the fuel housing, and the motor-mounting housing, wherein exhaust gas is transmitted from the gas outlet to the space between the fuel housing and the motor-mounting housing, and by the rotation of a propeller coupled to the rotating shaft of a motor mounted in the inner space of the motor-mounting housing, which has a closed bottom surface, mixing of air supplied through the air supply pipes is achieved in the space between the motor-mounting housing and the motor, and mixing of air supplied through one or more air holes formed on the side of the air housing is achieved in the space between the air housing and the fuel housing.

[0007] A cable supplying power to the motor can be placed inside the air supply pipe.

[0008] The propeller rotates in the inner space of the air housing and rotates on the upper part of the fuel housing and the motor mounting housing.

[0009] The motor is secured by screws that are fastened to two or more screw holes of the motor mounting housing.

[0010] The motor mounting housing is secured by screws that are fastened to two or more screw holes of the fuel housing.

[0011] The fuel housing is secured by screws that are fastened to two or more screw holes of the fuel housing and corresponding screw holes of the air housing.

[0012] The screws are fastened to the two or more screw holes formed in the lower retaining projection of the fuel housing and to the two or more screw holes formed on the bottom surface of the air housing.

[0013] The flare stack is fitted into the end of the gas outlet through the gap between the air housing and the fuel housing. Effects of the invention

[0014] According to the compact flare stack with a blower structure according to the present invention, it can be applied to various companies equipped with flare stack facilities for the safe discharge of ignited combustible gases, such as oil refineries and petrochemical plants, and utilizes low power of the motor, reduces the cost and space required to install additional facilities such as pipelines, is easy to mount, and can induce complete combustion by introducing additional external air instead of steam. Brief explanation of the drawing

[0015] The accompanying drawings, included as part of the detailed description to aid in understanding the present invention, provide embodiments of the present invention and explain the technical concept of the present invention together with the detailed description. FIG. 1 is an overall cross-sectional view of a flare stack (100) according to one embodiment of the present invention. FIG. 2a is a schematic three-dimensional perspective view of a motor mounting housing (110) according to one embodiment of the present invention. FIG. 2b is a drawing of a motor mounting housing (110) according to one embodiment of the present invention as viewed from below the bottom surface (119). FIG. 3a is a schematic three-dimensional perspective view of a fuel housing (120) according to one embodiment of the present invention. FIG. 3b is a drawing of a fuel housing (120) according to one embodiment of the present invention as viewed from below the bottom surface. FIG. 4a is a schematic three-dimensional perspective view of an air housing (130) according to one embodiment of the present invention. FIG. 4b is a drawing of an air housing (130) according to one embodiment of the present invention as viewed from below the bottom surface. FIG. 5 is a drawing illustrating a configuration in which a flare stack (100) according to one embodiment of the present invention is mounted on a gas outlet (900). FIG. 6 is an example showing the flame / gas discharge result (a) in a flare stack of the prior art and the flame / gas discharge result (b, c, d, e) according to the voltage applied to the motor (10) of the flare stack (100) of the present invention. Specific details for implementing the invention

[0016] The present invention will be described in detail below with reference to the attached drawings. In this case, identical components in each drawing are denoted by the same reference numeral whenever possible. Furthermore, detailed descriptions of already known functions and / or configurations are omitted. The content disclosed below focuses on the parts necessary for understanding the operation according to various embodiments, and descriptions of elements that may obscure the gist of the explanation are omitted. Additionally, some components in the drawings may be exaggerated, omitted, or schematically depicted. The size of each component does not entirely reflect its actual size, and therefore, the contents described herein are not limited by the relative sizes or spacing of the components depicted in each drawing.

[0017] In describing the embodiments of the present invention, detailed descriptions of known technologies related to the present invention are omitted if it is determined that such detailed descriptions may unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined in consideration of their functions within the present invention, and these 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. Terms used in the detailed description are intended merely to describe the embodiments of the present invention and should not be limiting in any way. Unless explicitly stated otherwise, expressions in the singular form include the meaning of the plural form. In this description, expressions such as "include" or "comprise" are intended to refer to certain characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof, and should not be interpreted to exclude the existence or possibility of one or more other characteristics, numbers, steps, actions, elements, parts thereof, or combinations thereof other than those described.

[0018] Additionally, terms such as first, second, etc., may be used to describe various components, but said components are not limited by said terms, and said terms are used only for the purpose of distinguishing one component from another.

[0019] FIG. 1 is an overall cross-sectional view of a flare stack (100) according to one embodiment of the present invention.

[0020] Referring to FIG. 1, a flare stack (100) according to one embodiment of the present invention is a structure mounted on a gas outlet (900) and comprises a cylindrical structure with a diameter that increases sequentially, a motor mounting housing (110), a fuel housing (120), and an air housing (130), and further comprises an air supply pipe (140). The overall components of the flare stack (100), including the motor mounting housing (110), the fuel housing (120), the air housing (130), and the air supply pipe (140), may be made of a heat-resistant material such as a ferrous metal, a non-ferrous metal (e.g., SUS), or a heat-resistant plastic (e.g., polyimide (PI), polyamideimide (PAI), polyethersulfone (PES), polyetherimide (PEI), etc.).

[0021] A flare stack (100) according to one embodiment of the present invention is designed to be compactly installed at an outlet (900) in a chimney-shaped structure installed to ignite and burn combustible gas for safety in oil refineries or petrochemical plants. The flare stack (100) of the present invention can be fitted into the end of the gas outlet (900) through a gap (800) between an air housing (130) and a fuel housing (120). The flare stack (100) can be applied to various companies requiring safe discharge of combustible gas, such as ignited flames and incompletely burned gases, and utilizes low power of the motor (10), reduces costs and space for installing additional equipment such as pipelines, is easy to mount at the outlet (900), and can induce complete combustion through the additional inflow of external air rather than steam.

[0022] A motor (10) is mounted inside a motor mounting housing (110), and a propeller (50) coupled to the rotation axis of the motor (10) rotates in the inner space of an air housing (130) and is configured to rotate on the upper part of a fuel housing (120) and a motor mounting housing (110).

[0023] The air supply pipe (140) is inserted from the outside through the side insertion holes (115, 125, 135) of the air housing (130), fuel housing (120), and motor mounting housing (110), respectively, so that fluid communication between the outside and the internal space of the motor mounting housing (110) is achieved through the air supply pipe (140). Although the air supply pipe (140) is shown as being provided one on each side in the drawing, depending on the case, there may be only one, or three or more may be provided. A cable that supplies power to the motor (10) may be placed through the inner through hole of the air supply pipe (140).

[0024] Accordingly, in the flare stack (100), the exhaust gas (Gas) is made to flow from the gas outlet (900) to the space between the fuel housing (120) and the motor mounting housing (110).

[0025] Furthermore, the bottom surface (119) of the motor mounting housing (110) and the side of the motor mounting housing (110) between the bottom surface (119) and the air supply pipe (140) are closed without holes, and external air supplied through the air supply pipe (140) into the space between the motor mounting housing (110) and the motor (10) is mixed by the rotation of the propeller (50) coupled to the rotation shaft of the motor (10) mounted in the inner space of the motor mounting housing (110). In addition, external air supplied through one or more air holes formed on the side of the air housing (130) into the space between the air housing (130) and the fuel housing (120) is mixed by the rotation of the propeller (50).

[0026] FIG. 2a is a schematic three-dimensional perspective view of a motor mounting housing (110) according to one embodiment of the present invention. FIG. 2b is a view of the motor mounting housing (110) according to one embodiment of the present invention as seen from below the bottom surface (119).

[0027] Referring to FIGS. 2a and 2b, the air supply pipe (140) is inserted through the side insertion hole (115) of the motor mounting housing (110), and the bottom surface (119) of the motor mounting housing (110) and the side of the motor mounting housing (110) between the bottom surface (119) and the air supply pipe (140) are closed without holes.

[0028] Below the upper part above the side insertion hole (115) for inserting the air supply pipe (140), the motor mounting housing (110) is provided with two or more (four in the drawing) side screw holes (112). By fastening screws (111 in FIG. 1) into the two or more screw holes (112) of the motor mounting housing (110), force is applied to the motor (10) by the screws (111), and the motor (10) is pressed at two or more positions and fixed to the motor mounting housing (110). In some cases, it is also possible to form a recess at an outer position of the motor (10) corresponding to the screw hole (112) so that the ends of the screws (111) are seated in the recess and fixed stably.

[0029] FIG. 3a is a schematic three-dimensional perspective view of a fuel housing (120) according to one embodiment of the present invention. FIG. 3b is a view of the fuel housing (120) according to one embodiment of the present invention as seen from below the bottom surface.

[0030] Referring to FIGS. 3a and 3b, an air supply pipe (140) is inserted through a side insertion hole (125) of a fuel housing (120). Below the upper portion above the side insertion hole (125) for inserting the air supply pipe (140), the fuel housing (120) is provided with two or more (four in the drawings) side screw holes (122). By fastening screws (121 in FIG. 1) into the two or more screw holes (122) of the fuel housing (120), force is applied to the motor mounting housing (110) by the screws (121), thereby pressing the motor mounting housing (110) at two or more positions and fixing it to the fuel housing (120). In some cases, it is also possible to form a recess at an outer position of the motor mounting housing (110) corresponding to the screw hole (122) so that the ends of the screws (121) can be seated in the recess and fixed stably.

[0031] Additionally, the fuel housing (120) is provided with at least two (four in the drawing) vertical screw holes (126) perpendicular to the longitudinal direction formed in the catch (129) for the gas outlet (900) toward the lower side. The fuel housing (120) is cylindrical in shape, extending in both directions with the catch (129) in between, and the length extending toward the lower side of the catch (129) is shorter than the length extending toward the upper side of the catch (129). The catch (129) and the screw holes (126) are described in the description of FIGS. 4a and 4b.

[0032] FIG. 4a is a schematic three-dimensional perspective view of an air housing (130) according to one embodiment of the present invention. FIG. 4b is a view of the air housing (130) according to one embodiment of the present invention as seen from below the bottom surface.

[0033] Referring to FIGS. 4a and 4b, an air supply pipe (140) is inserted through a side insertion hole (135) of an air housing (130), and one or more air holes (132) are formed on the side of the air housing (130) above the side insertion hole (135) for inserting the air supply pipe (140) and below the upper part. As described above, external air is introduced through one or more air holes (132) formed on the side of the air housing (130) by the rotation of the propeller (50), thereby enabling the mixing of external air supplied to the space between the air housing (130) and the fuel housing (120).

[0034] In addition, the air housing (130) is provided with at least two (four in the drawing) vertical screw holes (136) perpendicular to the longitudinal direction on the bottom surface.

[0035] The vertical screw hole (126) formed in the retaining projection (129) of the fuel housing (120) in FIGS. 3a and 3b and the vertical screw hole (136) of the air housing (130) in FIGS. 4a and 4b are formed at corresponding positions, and the fuel housing (120) is coupled and fixed to the air housing (130) by screws (131) that are fastened to two or more screw holes (126) of the fuel housing (120) and corresponding screw holes (136) of the air housing (130).

[0036] FIG. 5 is a drawing illustrating a configuration in which a flare stack (100) according to one embodiment of the present invention is mounted on a gas outlet (900).

[0037] Referring to FIG. 5, the flare stack (100) of the present invention can be fitted into the end of the gas outlet (900) through a gap (800) between the air housing (130) and the fuel housing (120). As in FIG. 1, the flare stack (100) can be fitted into the end of the gas outlet (900) through a gap (800) between the surface of the fuel housing (120) extending toward the lower end of the catch (129) of the fuel housing (120) and the side of the lower end of the air housing (130), and the upper end of the gas outlet (900) is caught by the catch (129) of the fuel housing (120), so that only a predetermined length of the upper end of the gas outlet (900) is fitted. A predetermined cover (200) can be fixed over the flare stack (100) by means of a screw or the like. This minimizes the ingress of foreign substances such as dust and minimizes the impact on gas discharge caused by wind, etc.

[0038] As such, a flare stack (100) according to one embodiment of the present invention can be compactly installed at an outlet (900) in a chimney-shaped structure installed to ignite and burn combustible gas for safety in oil refineries or petrochemical plants. The flare stack (100) can be applied to various companies that require safe discharge of flames from combustible gas and incompletely burned gas, and utilizes low power of the motor (10), reduces costs and space for installing additional equipment such as pipelines, is easy to mount at the outlet (900), and can induce complete combustion by introducing additional external air instead of steam.

[0039] FIG. 6 is an example showing the flame / gas discharge result (a) in a flare stack of the prior art and the flame / gas discharge result (b, c, d, e) according to the voltage applied to the motor (10) of the flare stack (100) of the present invention.

[0040] Referring to FIG. 6, when methane gas is discharged at 10 LPM (liter per minute), the flame / gas discharge result (a) in the conventional flare stack shows many red flames of incomplete combustion, whereas the flame / gas discharge result (b, c, d, e) according to the voltage (e.g., 0V, 0.5V, 1.0V, 1.5V) applied to the motor (10) of the flare stack (100) of the present invention shows that as the voltage increases, there are many blue flames of complete combustion due to the proper mixing of fuel and air.

[0041] As described above, the present invention has been explained by specific details such as specific components, limited embodiments, and drawings; however, this is provided merely to aid in a more comprehensive understanding of the invention, and the invention is not limited to the above embodiments. A person skilled in the art to which the invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the invention. Accordingly, the concept of the present invention should not be limited to the described embodiments, and all technical concepts that are equivalent to or have equivalent variations to the claims set forth below, as well as the claims themselves, should be interpreted as being included within the scope of the rights of the present invention. Explanation of the symbols

[0042] Motor mounting housing (110) Fuel housing (120) air housing (130) air supply pipe (140) gas outlet (900)

Claims

Claim 1 A flare stack mounted on a gas outlet, comprising a structure combining a motor-mounting housing, a fuel housing, and an air housing, which are cylindrical in shape with progressively increasing diameters, and further comprising one or more air supply pipes inserted from the outside through side insertion holes of the air housing, the fuel housing, and the motor-mounting housing, wherein exhaust gas is transmitted from the gas outlet to the space between the fuel housing and the motor-mounting housing, and by the rotation of a propeller coupled to the rotation shaft of a motor mounted in the inner space of the motor-mounting housing, which has a closed bottom surface, mixing of air supplied through the air supply pipes into the space between the motor-mounting housing and the motor is achieved, and mixing of air supplied through one or more air holes formed on the side of the air housing is achieved into the space between the air housing and the fuel housing. Claim 2 A flare stack according to claim 1, wherein a cable supplying power to the motor is arranged inside the air supply pipe. Claim 3 In claim 1, the propeller rotates in the inner space of the air housing and is a flare stack that rotates above the upper part of the fuel housing and the motor mounting housing. Claim 4 In claim 1, the motor is a flare stack fixed by screws fastened to two or more screw holes of the motor mounting housing. Claim 5 In claim 1, the motor mounting housing is a flare stack fixed by screws fastened to two or more screw holes of the fuel housing. Claim 6 In claim 1, the fuel housing is a flare stack fixed by screws fastened to two or more screw holes of the fuel housing and corresponding screw holes of the air housing. Claim 7 A flare stack according to claim 6, wherein the screws are fastened to the two or more screw holes formed in the lower retaining projection of the fuel housing and the two or more screw holes formed on the bottom surface of the air housing. Claim 8 In claim 1, the flare stack is a flare stack that is fitted and coupled to the end of the gas outlet through the gap between the air housing and the fuel housing.

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