KR20210065652A - Flame arrester for concentric type - Google Patents

Abstract

A concentric flame arrestor having improved quenching ability and easy to maintain is disclosed. The concentric flame arrestor of the present invention comprises: a device body in which an upper space and a lower space are symmetrically formed with respect to a horizontal central axis; an integrated element assembly which comprises a plurality of element modules arranged to intersect the central axis in a central region in the device body to provide a quenching function against an explosive flame, and is formed into a single body to be replaceable from the device body; an assembly fixing part detachably coupled to the device body for each position and fixing the integrated element assembly to the device body; and a direct contact module temperature measurer coupled to the device body and having one side in contact with the element modules to directly measure the temperature of the element modules.

Description

Concentric flame arrester

An embodiment according to the concept of the present invention relates to a concentric flame interrupter, and in particular, the explosion flame can be evenly distributed, so that the anti-inflammation function is superior to that of the prior art, and parts can be replaced without disassembling the entire product. Maintenance work can be performed easily and, above all, the temperature of the element module can be accurately measured, so it is a concentric flame arrester that can accurately and quickly process monitoring work according to the temperature of the element module and its accompanying actions. it's about

A flame arrester, also called a flashback arrester or flame arrester, is installed in a part that discharges the vapor from a tank that stores combustible vapors to the outside or sucks outside air into the tank to block the flame. plays a role

In other words, in piping equipment filled with combustible gas, tanks storing flammable liquids or mixed gases, or in burners or furnaces, it is necessary to quench the ignition or explosion caused by ignition, For this purpose, a flame arrester may be applied.

1 is a structural diagram of a flame blocking device according to the prior art.

Referring to this figure, the flame arrester according to the prior art includes a main body (1) and connection parts (2) provided on both sides of the main body (1). The connection part 2 forms a place to be connected to a plumbing facility or the like.

A plurality of anti-inflammatory elements 10 that provide an anti-inflammatory function are provided with a certain horizontal pattern 11 formed in the main body 1 . The anti-inflammatory element 10 is also called an element module (ELEMENT MODULE).

In addition, a plurality of fixing parts 20 for aligning and fixing each of the anti-inflammatory elements 10 are provided on both sides of the anti-inflammatory element 10 . The plurality of fixing parts 20 are connected to each other by stud bolts 30 .

The structure as shown in FIG. 1 may be a general configuration of the flame blocking device, and serves to block the flame by being connected between the pipe and the pipe.

However, such a conventional flame arrester has a structural limitation in which the entire product must be disassembled and reverse-assembled one by one when replacement of parts such as the flame-retardant element 10 is required, thereby adversely affecting the surrounding piping facilities and requiring maintenance. There is a problem that is not easy.

In addition, the conventional flame blocking device has a problem in that the anti-inflammation function may be somewhat deteriorated compared to the structure because the plurality of anti-inflammation elements 10 are formed in a constant horizontal direction pattern 11 .

On the other hand, the above-described anti-inflammatory element 10, that is, the element module 10 may be spontaneously ignited when a predetermined temperature, for example, 600° C. or higher, there is a need to measure and monitor the temperature of the element module 10.

Accordingly, the technology for measuring the temperature of the element module 10 is applied to the existing flame blocking device. In the past, the temperature of the element module 10 is not directly measured, but the element module 10 as a convection temperature value inside the device. The method of inferring the temperature of

However, since this conventional method is an indirect temperature measurement method for the element module 10, there is a problem in that it is difficult to measure the temperature of the element module 10 accurately.

As previously described, it is important to accurately measure the temperature of the element module 10 in that the element module 10 can be spontaneously ignited when it reaches a predetermined temperature, for example, 600° C. or higher. Considering the lack of it, the need for a concentric flame arrester of a new concept that has not been previously known arises.

Korean Intellectual Property Office Application No. 20-1999-0020723

The technical problem to be achieved by the present invention is that the explosion flame can be evenly distributed so that the anti-inflammation function is superior to the conventional one, and the maintenance work can be easily performed because parts can be replaced without disassembling the whole product, Above all, it is to provide a concentric flame arrester that can accurately and quickly process the monitoring work according to the temperature of the element module and its accompanying measures by accurately measuring the temperature of the element module.

The object is, the apparatus body in which the upper space and the lower space are symmetrically formed with respect to a horizontal central axis; An integral element assembly (ELEMENT) having a plurality of element modules intersecting the central axis in a central region within the device body to provide an anti-inflammation function against an explosive flame, and being formed as a single body so as to be replaceable in the device body (ELEMENT) ASSEMBLY); an assembly fixing part detachably coupled to the device body for each position and fixing the integral element assembly to the device body; And coupled to the device main body, one side is in contact with the element module is achieved by a concentric flame arrester, characterized in that it comprises a direct contact module temperature measuring instrument for directly measuring the temperature of the element module.

The integral element assembly may include an element body having a ring shape; and an element cover coupled to the element body from the opposite side of the element body with the plurality of element modules interposed therebetween, and supporting the plurality of element modules together with the element body.

The element module, a pair of module shells spaced apart from each other; and a corrugated element disposed in a wavy shape between the pair of module shells.

The element body may be formed with a rib flange to prevent displacement of the element module, and a plurality of through-holes disposed radially may be formed in the element cover.

The integrated element assembly may include: a center spacer disposed between the plurality of element modules and having a plurality of first communication holes communicating with the through holes; and a side spacer disposed between the element module and the element body, the side spacer having a thickness greater than that of the center spacer, and having a second communication hole communicating with the through hole and the first communication hole.

The integrated element assembly may include: a plurality of element bushes coupled to central portions of the element cover, the center spacer, and the side spacer; and a handle connected to the element body and handling the integral element assembly.

The assembly fixing part may include: a side fixing member fastened into the element body from a side surface of the element body to fix the element body or the element cover; and a regulator cover disposed to surround the side fixing member via a first gasket.

The assembly fixing part may include a cover plate disposed in the opening of the element body via a second gasket and supporting the handle; an upper fixing member for fixing the cover plate to the element body; and an eye (EYE) nut screw for fixing the cover plate to the element body from the opposite side of the upper fixing member.

The assembly fixing part may further include a lower fixing member coupled to the element body from the opposite side of the cover plate to fix the element body or the element cover at a corresponding position.

At least one vent plug detachably coupled to one side of the device body may be further included.

The direct contact module thermometer may be coupled to a vent plug.

a monitoring device (monitoring device) for monitoring the temperature value of the element module measured in the direct contact module temperature meter in real time; And based on the alarm signal generated through the monitoring device may further include a controller for controlling the operation of the concentric flame arrester to automatically stop.

According to the present invention, as the explosion flame can be evenly distributed, the anti-inflammation function is superior to that of the prior art, and parts can be replaced without disassembling the entire product, so maintenance work can be easily performed, and above all, the Since it can measure the temperature accurately, it has the effect of accurately and quickly processing the monitoring work according to the temperature of the element module and the actions accompanying it.

1 is a structural diagram of a flame blocking device according to the prior art.
2 is a partial cross-sectional structural view of a concentric flame arrester according to an embodiment of the present invention.
3 is an exploded view of FIG. 2 .
4 is an enlarged view of the device body.
5 is an enlarged structural diagram of the integral element assembly.
6 is a front view of FIG. 5 .
7 is an enlarged structural diagram of the element body shown in FIG. 5 .
FIG. 8 is a front view of FIG. 7 ;
9 is an enlarged structural diagram of the element cover shown in FIG. 5 .
FIG. 10 is a front view of FIG. 9 .
11 is an enlarged structural diagram of the center spacer shown in FIG. 5 .
12 is a front view of FIG. 11 ;
13 is an enlarged structural diagram of the side spacer shown in FIG. 5 .
FIG. 14 is a front view of FIG. 13 ;
15 is a control block diagram of a concentric flame arrester according to an embodiment of the present invention.
16 is a structural diagram of a concentric flame arrester according to another embodiment of the present invention.
17 is a structural diagram of a concentric flame arrester according to another embodiment of the present invention.
18 shows an embodiment of the direct contact module temperature measuring instrument shown in FIG.

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed in this specification are only exemplified for the purpose of describing the embodiments according to the concept of the present invention, and the embodiments according to the concept of the present invention may take various forms. It can be implemented with the above and is not limited to the embodiments described herein.

Since the embodiment according to the concept of the present invention may have various changes and may have various forms, the embodiment will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one element from another, for example without departing from the scope of the inventive concept, a first element may be termed a second element and similarly a second element A component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it should be understood that other components may exist in between. will be. On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Other expressions describing the relationship between elements, such as "between" and "immediately between" or "neighboring to" and "directly adjacent to", should be interpreted similarly.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that a feature, number, step, operation, component, part, or combination thereof described herein exists, but one or more other features It is to be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in the dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and are not to be interpreted in an ideal or excessively formal sense unless explicitly defined in the present specification. .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a partial cross-sectional structural view of a concentric flame arrester according to an embodiment of the present invention, FIG. 3 is an exploded view of FIG. 2, FIG. 4 is an enlarged view of the device body, FIG. 5 is an enlarged structural diagram of an integrated element assembly, 6 is a front view of FIG. 5 , FIG. 7 is an enlarged structural diagram of the element body shown in FIG. 5 , FIG. 8 is a front view of FIG. 7 , and FIG. 9 is an enlarged structural diagram of the element cover shown in FIG. 5 , FIG. is a front view of FIG. 9 , FIG. 11 is an enlarged structural diagram of the center spacer shown in FIG. 5 , FIG. 12 is a front view of FIG. 11 , FIG. 13 is an enlarged structural diagram of the side spacer shown in FIG. 5 , and FIG. 14 is FIG. 13 is a front view, and FIG. 15 is a control block diagram of a concentric flame arrester according to an embodiment of the present invention.

Referring to these drawings, the concentric flame blocking device 100 according to the present embodiment can distribute the explosive flame evenly, so that the anti-inflammation function is superior to that of the prior art, and parts can be replaced without disassembling the entire product. Maintenance work can be easily performed, and above all, the temperature of the element module 130 can be accurately measured so that the monitoring work according to the temperature of the element module 130 and the actions accompanying it can be accurately and quickly processed. do.

This concentric flame cut-off device 100 has a structure in which the explosive flame can be evenly distributed, so it can be applied to a gas line, in particular, a BOG (Boil Off Gas) line. Of course, considering that the durability of the element module 130 may be reduced due to the accumulation of residues at the bottom when installed on the horizontal piping line, the concentric flame arrestor 100 of this embodiment is more preferably applied to the gas line. desirable.

For reference, BOG (Boil Off Gas) refers to natural gas that naturally evaporates and vaporizes in an LNG cargo tank. Explosive flames may occur during the operation of such a BOG (Boil Off Gas) line. To this, the concentric flame arrestor 100 may be applied. Therefore, the concentric flame blocking device 100 according to the present embodiment may be connected between BOG (Boil Off Gas) lines.

The concentric flame arrester 100 according to this embodiment includes a device body 110, an integrated element assembly 120, ELEMENT ASSEMBLY, an assembly fixing part 160, and a direct contact module temperature measuring device 170. can do.

The device body 110 forms the external structure of the concentric flame blocking device 100 according to the present embodiment. The device body 110 is a structure coupled to a piping line, and the integrated element assembly 120 is mounted therein.

Pipe flanges 113 are formed at both ends of the device body 110 so that the device body 110 can be coupled to the piping line. By fastening the pipe flange 113 to the flange of the lath facility line with bolts, the device body 110 can be installed in the pipe line.

An opening 111 is formed at one side of the device body 110 . The integrated element assembly 120 may enter and exit through the opening 111 . Accordingly, maintenance such as replacing the integrated element assembly 120 can be performed without removing the device body 110 from the piping facility. Accordingly, the convenience of operation can be greatly improved.

A vent plug 112 (VENT PLUG) is provided on one side of the device body 110 . The vent plug 112 may be used to vent the gas in the device body 110 to lower the pressure.

In this embodiment, the vent plugs 112 are arranged in pairs on the upper and lower portions of the device body 110 . Of course, unlike the drawings, the vent plug 112 may be applied only to one side of the device body 110, and it should be said that all of these matters fall within the scope of the present invention.

The one-piece element assembly 120 (ELEMENT ASSEMBLY) is intersected to the central axis (C/L, see FIG. 3 ) in a central region within the device body 110 to provide an anti-flame function against an explosive flame.

In particular, the integrated element assembly 120 applied to this embodiment is formed as a single body so that it can be easily replaced in the device body 110 . Accordingly, as shown in FIG. 3 , the integrated element assembly 120 may be taken out of the device body 110 as it is or may be inserted into the device body 110 at once. Therefore, workability is greatly improved.

The integrated element assembly 120 has a structure in which a plurality of element modules 130 are provided between the element body 121 and the element cover 140 . The element module 130 may be simply called an element.

The element body 121 supports one side of the element module 130 as a structure having a ring shape. Since the element body 121 has a ring shape, a through portion 122 is formed in the element body 121 . Explosive flame may be directed to the element module 130 through the penetration portion 122 .

The element body 121 is formed with a rib flange 123 . The rib flange 123 serves to prevent the displacement of the element module 130 or the side spacer 154 .

In addition, a handle 158 for handling the integral element assembly 120 is provided on the element body 121 . An operator may handle the integral element assembly 120 by grasping the handle 158 to facilitate the operation.

The element cover 140 is a structure coupled to the element body 121 from the opposite side of the element body 121 with the plurality of element modules 130 interposed therebetween. The element cover 140 supports the plurality of element modules 130 together with the element body 121 .

Unlike the element body 121 having a ring shape, the element cover 140 has a circular structure only in its outer shape, and a plurality of through holes 141 are formed therein. The plurality of through holes 141 are radially disposed from the center of the element cover 140 . Explosive flame may be directed to the element module 130 through the through hole 141 .

The element module 130 is fixed between the element body 121 and the element cover 140, and provides an anti-inflammatory function in case of an explosion flame at the corresponding position.

In particular, since the plurality of element modules 130 are intersected on the central axis (C/L, see FIG. 3) in the central region within the device body 110, the explosion flame can be evenly distributed, so that the anti-inflammation function is superior to the prior art can be done

The element module 130 includes a pair of module shells 131 spaced apart from each other, and a corrugated element 132 disposed in a waveform shape between the pair of module shells 131 . Since the corrugated element 132 is applied, the contact area with the explosive flame may be increased, and thus the anti-inflammation function may be further increased.

In this embodiment, the element module 130 is disposed in multiple layers between the element body 121 and the element cover 140 . Accordingly, the anti-inflammatory function may be further improved.

However, in applying the plurality of layers of the element module 130 , it is difficult if the element module 130 is not supported between the element body 121 and the element cover 140 and is shaken. To solve this problem, a center spacer 151 and a side spacer 154 are provided.

The center spacer 151 is disposed between the plurality of element modules 130 to separate the plurality of element modules 130 , while the plurality of element modules 130 shake between the element body 121 and the element cover 140 . to be supported without A plurality of first communication holes 152 communicating with the through holes 141 are formed in the center spacer 151 . The position and shape of the through hole 141 and the first communication hole 152 are the same.

For reference, in the present embodiment, since a plurality of element modules 130 are applied, the center spacer 151 is used. However, when a single element module 130 is applied, the center spacer 151 does not need to be used. .

The side spacer 154 is disposed between the element module 130 and the element body 121 so that the plurality of element modules 130 can be supported between the element body 121 and the element cover 140 without shaking. In this embodiment, the side spacer 154 is formed to have a greater thickness than the center spacer 151 .

A through hole 141 and a second communication hole 155 communicating with the first communication hole 152 are formed in the side spacer 154 . The positions and shapes of the through hole 141 , the first communication hole 152 , and the second communication hole 155 are the same.

In addition to this, a plurality of element bushes 157 are applied to the integrated element assembly 120 . The plurality of element bushes 157 are coupled to the central portions of the element cover 140 , the center spacer 151 , and the side spacer 154 so that the plurality of element modules 130 can be firmly coupled.

The assembly fixing unit 160 is detachably coupled to the device body 110 for each position, and serves to fix the integrated element assembly 120 to the device body 110 .

When replacing the integrated element assembly 120, loosen the assembly fixing unit 160 by position, take out the existing integrated element assembly 120, place a new integrated element assembly (not shown) in its place, and then again The assembly fixing unit 160 may be fixed for each position.

The assembly fixing part 160 includes a side fixing member 161 . The side fixing member 161 is fastened into the element body 121 from the side of the element body 121 to fix the element body 121 or the element cover 140 .

A regulator cover (163, REGULATOR COVER) is disposed on the side fixing member 161 . The regulator cover 163 is disposed to surround the side fixing member 161 via the first gasket 162a.

In addition to this, the assembly fixing unit 160 includes a cover plate 164 . The cover plate 164 is disposed in the opening 111 of the element body 121 via the second gasket 162b and serves to support the handle 158 .

An upper fixing member 165 for fixing the cover plate 164 to the element body 121 is installed on one side of the cover plate 164 .

In addition, an eye (EYE) nut screw 166 for fixing the cover plate 164 to the element body 121 is provided on the opposite side of the upper fixing member 165 . The eye nut screw 166 allows for manual operation.

A lower fixing member 167 is provided on the opposite side of the cover plate 164 . The lower fixing member 167 is coupled to the element body 121 from the opposite side of the cover plate 164 and serves to fix the element body 121 or the element cover 140 at the corresponding position.

On the other hand, the direct contact module temperature measuring device 170 is coupled to the device body 110 as shown in detail in FIG. 2 , and one side is in contact with the element module 130 to directly measure the temperature of the element module 130 . plays a role

As described above, the element module 130 may be ignited naturally at a predetermined temperature, for example, 600° C. or higher, so to stop the operation of the concentric flame arrester 100 before this temperature, the correct element module 130 temperature should be measured.

However, it is difficult to accurately measure the temperature of the element module 130 in an indirect method of inferring the temperature of the element module 130 from the convection temperature value inside the device as in the prior art. Therefore, in this embodiment, the direct contact type module temperature measuring instrument 170 is applied.

When the direct contact module temperature measuring instrument 170 is applied, one side is in contact with the element module 130 to directly measure the temperature of the element module 130 , so it is possible to accurately measure the temperature of the element module 130 , and accordingly the subsequent Measures that stop the operation of the device when it reaches 600°C or higher can be quickly and automatically processed.

In this embodiment, the direct contact module temperature measuring instrument 170 may be detachably coupled to the vent plug (112, VENT PLUG). Therefore, there is no need to perform a structural change for the installation of the direct contact module temperature measuring instrument (170).

This direct contact module temperature measuring device 170 includes an explosion-proof head 171 disposed on the outside of the device body 110 , a covering member 172 disposed over the inside and outside of the device body 110 , and a covering member 172 . ) disposed in and substantially in contact with the element module 130 and includes a measurement sensor line 173 for measuring the temperature of the element module 130 .

On the other hand, as shown in FIG. 15 in the concentric flame arrester 100 according to the present embodiment, a monitoring device 180, a monitoring device, and a controller 190 are further provided.

The monitoring device 180 serves to monitor the temperature value of the element module 130 measured by the direct contact module temperature measuring instrument 170 in real time.

Then, the controller 190 controls the operation of the concentric flame arrester 100 to be automatically stopped based on the alarm signal generated by the monitoring device 180 . That is, when the temperature value of the element module 130 exceeds the reference temperature value, the controller 190 controls the operation of the concentric flame arrester 100 to automatically stop.

The controller 190 performing this role may include a central processing unit (CPU) 191, a memory (192, MEMORY), and a support circuit (193, SUPPORT CIRCUIT).

The central processing unit 191 is various computer processors that can be industrially applied to control the operation of the concentric flame arrester 100 to be automatically stopped based on the alarm signal generated from the monitoring device 180 in this embodiment. can be one of

The memory 192 (MEMORY) is connected to the central processing unit (191). The memory 192 is a computer-readable recording medium, which may be installed locally or remotely, and may be easily available such as random access memory (RAM), ROM, floppy disk, hard disk, or any digital storage form. It may be at least one memory.

The support circuit 193 (SUPPORT CIRCUIT) is coupled with the central processing unit 191 to support typical operations of the processor. The support circuit 193 may include a cache, a power supply, a clock circuit, an input/output circuit, a subsystem, and the like.

In this embodiment, the controller 190 controls the operation of the concentric flame arrester 100 to be automatically stopped based on the alarm signal generated from the monitoring device 180, and such a series of control processes are performed in the memory 192 ) can be stored in Typically, software routines may be stored in memory 192 . Software routines may also be stored or executed by other central processing units (not shown).

Although the process according to the present invention has been described as being executed by a software routine, it is also possible that at least a part of the process of the present invention is performed by hardware. As such, the processes of the present invention may be implemented in software executed on a computer system, implemented in hardware such as an integrated circuit, or implemented by a combination of software and hardware.

Hereinafter, the operation of the concentric flame arrester 100 will be described.

First, to replace the integral element assembly 120, once the assembly fixing part 160 is loosened for each position, and then the cover plate 164 is removed.

Next, after taking out the existing integrated element assembly 120 through the opening 111 of the device body 110, a new integrated element assembly (not shown) is placed there.

Then, while closing the opened cover plate 164, it is fixed with the upper fixing member 165 and the EYE nut screw 166, and fixed with the lower fixing member 167 from the opposite side. Then, after the side fixing member 161 is fastened, the replacement operation of the integrated element assembly 120 can be performed very easily by overlaying and coupling the regulator cover 163 .

On the other hand, during the operation of such a device, if the temperature value of the element module 130 exceeds the reference temperature value, the operation of the concentric flame blocking device 100 may be automatically stopped.

According to this embodiment, which operates based on the structure as described above, the explosion flame can be evenly distributed, so that the anti-inflammation function is superior to that of the prior art, and parts can be replaced without disassembling the entire product, so maintenance work can be easily performed, and above all, the temperature of the element module 130 can be accurately measured, so that the monitoring operation according to the temperature of the element module 130 and the actions accompanying it can be accurately and quickly processed.

16 is a structural diagram of a concentric flame arrester according to another embodiment of the present invention.

Referring to this figure, in the case of the concentric flame arrester 200 applied to this embodiment, the shape (or structure) of the device body 210 and the shape (or structure) of the integrated element assembly 220 are described above. Although it is slightly different from one embodiment, the roles and functions are all the same.

The temperature of the element module 230 can be directly measured by the direct contact module temperature measuring device 170 coupled to the vent plug 112 even in the concentric flame interrupter 200 . The direct contact module temperature measuring instrument 170 applied to this embodiment is the same as the above-described embodiment.

Referring to FIG. 16 , the concentric flame arrester 200 includes two vent plugs (the left vent plug has no reference numerals; the right vent plug 112) on the upper portion of the device body. According to an embodiment, another direct contact module temperature measuring device (not shown) may be coupled to the left vent plug to directly measure the temperature of the element module 230 . That is, the direct contact module temperature measuring device 170 directly measures the temperature of the rightmost element of the element module 230, and the other direct contact module temperature measuring device (not shown) coupled to the left vent plug is an element module. The temperature of the leftmost element of 230 is directly measured. The two direct contact module thermometers may directly measure the temperature of the leftmost element and the rightmost element of the element module 230 through two vent plugs on the upper portion of the device body 210 , respectively. In FIG. 16 , the element module 230 includes five elements. When the concentric flame blocking device 200 is installed in a pipe of liquefied gas such as LNG, the liquefied gas is vaporized if it is -162 degrees or more. The direct contact module temperature measuring device 170 checks these temperature conditions, so that the pressure rise in the pipe due to the BOG gas and the possibility of an explosion can be predicted. When the concentric flame arrester 200 is installed in the pipe of a general gas, the direct contact module temperature measuring device 170 measures the temperature rise inside the pipe to determine when the gas temperature exceeds the allowable temperature. Accordingly, the possibility of spontaneous ignition may be predicted. In addition, when a flame reaches the element in an explosion accident and continuous combustion occurs, the temperature of the element rises by more than 60 degrees within 1 minute. At this time, it is possible to measure the temperature rise of the elements located on both edges using two direct contact module thermometers. According to the measurement of temperature rise, it is possible to prevent human accidents by giving a warning in advance.

17 is a structural diagram of a concentric flame arrester according to another embodiment of the present invention.

Referring to FIG. 17 , the concentric flame arrester 300 includes two vent plugs 340 and 350 on the upper portion of the device body. Each of the plurality of direct contact module thermometers 310 and 320 directly measures the temperature of the rightmost element 331 of the element module 335 , and another direct contact module temperature coupled to the left vent plug 350 . The measuring device 320 directly measures the temperature of the leftmost element 333 of the element module 335 . The two direct contact module thermometers 310 and 320 are the leftmost element 333 and the most leftmost element of the element module 335 through the two vent plugs 340 and 350 of the upper part of the device body 330, respectively. The temperature of the right element 331 may be directly measured. According to an embodiment, the element module 335 may include two or more elements. When the concentric flame blocking device 300 is installed in a pipe of liquefied gas such as LNG, the liquefied gas is vaporized if it is -162 degrees or more. The direct contact module temperature measuring device 310 or 320 checks these temperature conditions, so that the pressure rise in the pipe due to the BOG gas and the possibility of an explosion can be predicted. When the concentric flame arrester 300 is installed in the pipe of a general gas, the direct contact module temperature measuring device 310 or 320 measures the temperature rise inside the pipe to check if the gas is above the allowable temperature. . Accordingly, the possibility of spontaneous ignition may be predicted. In addition, when a flame reaches the element in an explosion accident and continuous combustion occurs, the temperature of the element rises by more than 60 degrees within 1 minute. At this time, it is possible to measure the temperature rise of the elements located on both edges using two direct contact module thermometers. According to the measurement of temperature rise, it is possible to prevent human accidents by giving a warning in advance.

18 shows an embodiment of the direct contact module temperature measuring instrument shown in FIG.

Referring to FIG. 18 , the thickness of the sensing part 311 of the direct contact module temperature measuring device 310 is between 0.5 and 0.9 mm in diameter. The thickness of the sensing part 311 is the same as the Maximum Experience Safe Gap (MESG) of the element shown in FIG. 17 . According to an embodiment, the direct contact module temperature measuring instrument 310 shown in FIG. 18 is the direct contact module temperature measuring device 320 shown in FIG. 17, or the direct contact module temperature measuring device 170 shown in FIG. can

Even if this embodiment is applied, the explosion flame can be evenly distributed, so the anti-inflammation function is superior to that of the prior art, and parts can be replaced without disassembling the whole product, so maintenance work can be easily performed, and above all, the element module ( It is possible to accurately measure the temperature of the 335), so that the monitoring operation according to the temperature of the element module 335 and the accompanying measures can be accurately and quickly processed.

As such, the present invention is not limited to the described embodiments, and it is apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Accordingly, it should be said that such modifications or variations fall within the scope of the claims of the present invention.

100: concentric flame blocking device 110: device body
111: opening 112: vent plug
120: one-piece element assembly 121: element body
122: through part 123: rib flange
130: element module 131: module shell
132: waveform element 140: element cover
141: through hole 151: center spacer
152: first communication hole 154: side spacer
155: second communication hole 157: element bush
158: handle 160: assembly fixing part
161: side fixing member 162a: first gasket
162b: second gasket 163: regulator cover
164: cover plate 164a: plate handle
165: upper fixing member 166: eye nut screw
167: lower fixing member 170: direct contact module temperature measuring instrument
180: monitoring device 190: controller

Claims (5)

an apparatus body in which an upper space and a lower space are symmetrically formed with respect to a horizontal central axis;
An integral element assembly (ELEMENT) having a plurality of element modules intersecting the central axis in a central region within the device body to provide an anti-inflammation function against an explosive flame, and being formed as a single body to be replaceable in the device body (ELEMENT) ASSEMBLY);
an assembly fixing part detachably coupled to the device body for each position and fixing the integral element assembly to the device body; and
A concentric flame arrester comprising a direct contact module temperature measuring device coupled to the device body and having one side in contact with the element module to directly measure the temperature of the element module. According to claim 1,
The integral element assembly,
an element body having a ring shape; and
Concentric flame arrester comprising an element cover coupled to the element body from the opposite side of the element body with the plurality of element modules interposed therebetween, and supporting the plurality of element modules together with the element body. According to claim 1,
Concentric flame arrester further comprising at least one vent plug (VENT PLUG) detachably coupled to one side of the device body. 4. The method of claim 3,
The direct contact module temperature measuring device is a concentric flame arrester coupled to a vent plug. According to claim 1,
a monitoring device (monitoring device) for monitoring the temperature value of the element module measured by the direct contact module temperature measuring device in real time; and
Concentric flame arrester further comprising a controller for automatically stopping the operation of the concentric flame arrester based on the alarm signal generated by the monitoring device.

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