KR20240102419A - Explosion relied vavlve assembly for exhaust duct - Google Patents

Abstract

The present invention has a structure in which a disk portion that can reciprocate in the pressure release chamber of the main body is elastically supported by an elastic support portion, and the elastic force of the elastic support portion is adjusted by the elastic force control portion. It is installed in the exhaust duct of the engine to reliably suppress the flame of the gas. It relates to an explosion relief valve assembly for an exhaust duct that not only suppresses flames but also effectively reduces the explosion pressure of gas.

Description

Explosion relief valve assembly for exhaust duct {EXPLOSION RELIED VAVLVE ASSEMBLY FOR EXHAUST DUCT}

The present invention relates to an explosion relief valve assembly for an exhaust duct, and more specifically, to an explosion relief valve assembly for an exhaust duct that is installed in the exhaust duct of an engine to reliably extinguish gas flames and effectively reduce the explosion pressure of gas. It relates to explosion relief valve assemblies.

Explosion pressure discharge and flame emission prevention devices are installed in the crankcase, fuel supply duct, and intake manifold (INLET MANIFOLD) of a ship's internal combustion engine. It is a device that prevents damage and maintains the interior at normal pressure.

Furthermore, if the high-temperature flame caused by accidental explosion is released to the outside, the human body or various devices may suffer fatal damage. Therefore, the explosion relief valve has a flame barrier layer to block the flame from being released to the outside. is installed in

This explosion pressure relief and flame emission prevention device is also referred to as an explosion relief valve or explosion venting device.

Recently, various devices have been developed that can reduce pressure while extinguishing flames caused by explosions.

An example is the explosion-pressure relief valve disclosed in Patent Registration No. 10-0350746 (hereinafter referred to as prior art).

The prior art is equipped with one or more flame arresters with low pressure resistance installed in the gas path.

This flame arrester is composed of plates arranged in layers along the gas flow direction, and in particular, at least a portion of the width of the plates is formed into an irregular wave shape.

However, the prior art had a small heat transfer area, so there was a possibility that the flame would backfire, and in particular, there was an inherent problem in that the gap between the plates after the explosion was unevenly widened, which could lead to a backfire in the event of a subsequent explosion.

Registered Patent No. 10-0350746

The present invention was invented to improve the above problems, and is an explosion relief valve for the exhaust duct that is installed in the exhaust duct of the engine to reliably extinguish the gas flame and effectively reduce the explosion pressure of the gas. This is to provide assembly.

In order to achieve the above object, the present invention includes a casing mounted on an exhaust duct of an engine and having a pressure release chamber in communication with the exhaust duct formed therein, and a first end of the casing mounted on the exhaust duct. a main body portion including an end plate mounted on a second end of the casing; a disk part built in the pressure release chamber, parallel to the end plate, dividing the internal space of the casing upward and downward, and movable toward the end plate by explosion pressure inside the exhaust duct; an elastic support portion having a third end facing the end plate and a fourth end facing the disk portion and including a plurality of springs radially disposed within the pressure relief chamber; and an adjustment nut formed on a surface of the end plate facing the atmosphere with respect to the back surface of the end plate facing the disk portion and connected to each of the plurality of springs, the entire plurality of springs for the disk portion. It will be possible to provide an explosion relief valve assembly for an exhaust duct, characterized in that it includes an elastic force control unit capable of adjusting the elastic repulsion force.

Here, the main body portion includes a connection flange connected to the exhaust duct, a base flange stacked in contact with the connection flange, a base gasket disposed between the connection flange and the base flange, and the base flange facing the base flange. an intermediate flange extending along the first end edge of the casing and parallel to the base flange, a flat ring-shaped end flange disposed between the end plate and the second end edge of the casing, the end plate and the It has an end gasket in the shape of a flat ring disposed between the end flanges, a cylindrical inner protective tube having both end edges fixed to the intermediate flange and the base flange, and an inner peripheral surface facing the outer peripheral surface of the internal protective cylinder, and the intermediate flange and A cylindrical flame barrier disposed between the base flanges, an inner circumferential surface facing the outer circumferential surface of the flame barrier, and a cylindrical outer protective passage having both end edges fixed between the middle flange and the base flange, A plurality of internal communication holes formed through a plurality of penetrating holes along the outer peripheral surface of the inner protective cylinder to communicate with the pressure relief chamber, a plurality of external communication holes formed through a plurality of penetrating holes along the outer peripheral surface of the external protective cylinder, the end flange, the end gasket, and the end portion. A plurality of stud bolts having a fifth end sequentially penetrating the plate and a sixth end sequentially penetrating the base flange, the base gasket, and the connection flange, and arranged radially on the end plate, the first stud bolt It has a fixing nut screwed to the outer peripheral surface of the fifth end and the sixth end, respectively, a seventh end in contact with the end flange, and an eighth end in contact with the base flange, and an inner peripheral surface facing the outer peripheral surface of each of the plurality of stub bolts. It further includes a fixed pipe having, wherein the outer peripheral surface of the disk portion faces the outer peripheral surface of each of the fixed pipes.

At this time, the disk unit includes a first plate in the shape of a disk having a lower surface facing the base flange, a second plate in the shape of a disk having an upper surface facing the end plate, and the upper surface of the first plate and the second plate. A disk case formed in a cylindrical shape with penetrations at both ends coupled to the lower surface of the plate, a disk guide of a ring shape with a circular cross-section fixed along the inner side of the lower edge of the first plate, and a stepped depression in the upper surface of the base flange. It further includes a disc seating step that guides the seating of the disk guide, and a guide slope that is cut along an inner edge of the disk seating step to be inclined upward toward the upper surface of the base flange.

In addition, the elastic support portion is formed in the shape of a circular block having a support piece having an upper surface facing the end plate and an outer peripheral surface that protrudes stepwise from a lower surface of the support piece and faces the inner peripheral surface of the third end of the spring. It further includes one support protrusion piece and a second support protrusion piece formed in a cylindrical shape that protrudes from the upper surface of the disk unit toward the first support protrusion side and has an outer peripheral surface facing the inner peripheral surface of the spring, wherein the third end is It is seated on a support piece, the fourth end is seated on the upper surface of the disk unit, and a portion of the elastic force adjusting part is formed on the upper surface of the support piece.

In addition, the elastic force adjusting unit includes an adjustment bolt that protrudes from the upper surface of a support piece facing the end plate and has a lower surface on which the third end is seated and penetrates the end plate, and the adjustment bolt protruding from the upper surface of the end plate. It includes the adjustment nut screwed to a bolt and fixed to the upper surface of the end plate, and the elastic force of the spring is fine depending on the length of the adjustment bolt protruding from the upper surface of the end plate depending on the degree of coupling of the adjustment nut. It is characterized by being adjusted.

According to the present invention configured as described above, it will have the advantage of being installed in the exhaust duct of an engine to reliably extinguish gas flames and effectively reduce the explosion pressure of gas.

In particular, in the present invention, the height of the disc can be finely adjusted by tightening or loosening the nut, and the tension of the spring can be adjusted accordingly, making it possible to actively respond to the needs of various customers.

In other words, the present invention adjusts the nut so that it is shipped with the initial tension set to suit the customer's needs, and then connects the adjustment nut, which adjusts the height of the spring by engaging the bolt connected to the spring, with a fixing nut fixed to the upper surface of the end plate. Since it can be shipped in a fixed state by tack welding, it has the advantage of enabling the delivery of highly reliable products.

Figure 1 is a partially cut perspective conceptual diagram showing a portion of the main body section cut away so that the internal structure of the explosion relief valve assembly for an exhaust duct according to an embodiment of the present invention can be understood.
Figure 2 is a plan conceptual diagram of an explosion relief valve assembly for an exhaust duct according to an embodiment of the present invention.
Figure 3 is a conceptual diagram of the cross section along line AA of Figure 2
Figure 4 is an enlarged side cross-sectional conceptual diagram of part B of Figure 2
Figure 5 is an enlarged side cross-sectional conceptual diagram of part C of Figure 2

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

The examples herein are provided to make the disclosure of the present invention complete and to fully inform those skilled in the art of the scope of the invention.

And the present invention is only defined by the scope of the claims.

Accordingly, in some embodiments, well-known components, well-known operations and well-known techniques are not specifically described in order to avoid ambiguous interpretation of the present invention.

In addition, the same reference numerals refer to the same components throughout the specification, and the terms used (mentioned) in the specification are for explaining embodiments and are not intended to limit the present invention.

In this specification, the singular also includes the plural unless specifically stated in the phrase, and elements and operations referred to as 'including (or, including)' do not exclude the presence or addition of one or more other elements and operations. .

Unless otherwise defined, all terms (including technical and scientific terms) used in this specification may be used with meanings that can be commonly understood by those skilled in the art to which the present invention pertains.

Additionally, terms defined in commonly used dictionaries are not interpreted ideally or excessively unless they are defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings.

First, Figure 1 is a partially cut perspective conceptual diagram showing a portion of the main body 100 cut away so that the internal structure of the explosion relief valve assembly for an exhaust duct according to an embodiment of the invention can be seen.

And, Figure 2 is a plan view of an explosion relief valve assembly for an exhaust duct according to an embodiment of the present invention.

And, Figure 3 is a cross-sectional conceptual diagram taken along line A-A of Figure 2.

Additionally, Figure 4 is an enlarged side cross-sectional conceptual diagram of portion B of Figure 2.

In addition, Figure 5 is an enlarged side cross-sectional conceptual diagram of part C of Figure 2.

As shown in Figures 1 to 3, the present invention applies an embodiment of a structure in which a disk portion that can reciprocate in the pressure release chamber of the main body is elastically supported by an elastic support portion, and the elastic force of the elastic support portion is adjusted by an elastic force adjusting portion. You can do it.

First, the main body 100 is mounted on the exhaust duct (hereinafter not shown) of the engine, a casing 110 in which a pressure release chamber 101 communicating with the exhaust duct is formed, and a casing mounted on the exhaust duct. It includes an end plate 120 mounted on the second end of the casing 110 with respect to the first end of 110.

The disk unit 200 is built into the pressure release chamber 101, is parallel to the end plate 120, divides the internal space of the casing 110 upwards and downwards, and moves toward the end plate 120 by the explosion pressure inside the exhaust duct. It is possible.

The elastic support portion 300 has a third end facing the end plate 120 and a fourth end facing the disk portion 200 and includes a plurality of springs 301 radially disposed inside the pressure release chamber 101. It includes.

The elastic force adjusting unit 500 is formed on the surface of the end plate 120 facing the atmosphere with respect to the back surface of the end plate 120 facing the disk unit 200 and is connected to each of the plurality of springs 301. It includes a nut 510 and is capable of adjusting the elastic reaction force of the plurality of springs 301 with respect to the disk unit 200.

The present invention can be applied to the above-mentioned embodiments, and of course, it is also possible to apply the following various embodiments.

First, looking at the main body portion 100 in more detail with reference to FIGS. 4 and 5 as well as FIGS. 1 to 3, the main body portion 100 has a connection flange 130 connected to the exhaust duct, and abuts the connection flange 130. It may further include a stacked base flange 140 and a base gasket 135 disposed between the connection flange 130 and the base flange 140.

In addition, the main body 100 may further include an intermediate flange 112 that extends along the first end edge of the casing 110 facing the base flange 140 and is parallel to the base flange 140.

In addition, the main body 100 includes a flat ring-shaped end flange 150 disposed between the end plate 120 and the second end edge of the casing 110, and the end plate 120 and the end flange 150. An end gasket 145 in the shape of a flat ring disposed therebetween may be further provided.

In addition, the main body 100 may further include a cylindrical inner protection tube 161 having both end edges fixed to the middle flange 112 and the base flange 140.

In addition, the main body 100 may further include a cylindrical flame barrier 170 having an inner peripheral surface facing the outer peripheral surface of the inner protective cylinder 161 and disposed between the intermediate flange 112 and the base flange 140. You can.

In addition, the main body 100 has an inner peripheral surface facing the outer peripheral surface of the flame barrier 170 and a cylindrical outer protective cylinder 162 having both end edges fixed between the middle flange 112 and the base flange 140. It can be further provided.

In addition, the main body 100 has a plurality of internal communication holes 163 that are formed through a plurality of penetrating holes along the outer peripheral surface of the internal protective cylinder 161 and communicate with the pressure release chamber 101, and a plurality of internal communication holes 163 along the outer peripheral surface of the external protective cylinder 162. It may further include an external communication hole 164 formed through the .

In addition, the main body 100 has a fifth end that sequentially penetrates the end flange 150, the end gasket 145, and the end plate 120, and a base flange 140, a base gasket 135, and a connection flange. It has a sixth end sequentially passing through 130 and may further include a plurality of stud bolts 180 radially disposed on the end plate 120 .

In addition, the main body 100 may further include fixing nuts 182 screwed to the outer peripheral surfaces of the fifth and sixth ends, respectively.

In addition, the main body 100 has a seventh end in contact with the end flange 150, an eighth end in contact with the base flange 140, and a fixed pipe 190 having an inner peripheral surface facing the outer peripheral surface of each of the plurality of stub bolts. ) may be further provided.

Here, it can be seen that the outer peripheral surface of the disk unit 200 is arranged to face the outer peripheral surface of each of the fixed pipes 190.

Meanwhile, the disk unit 200 includes a disc-shaped first plate 210 having a lower surface facing the base flange 140, and a disc-shaped second plate 220 having an upper surface facing the end plate 120. ) and a disk case 230 formed in a cylindrical shape with both ends penetrating, coupled to the upper surface of the first plate 210 and the lower surface of the second plate 220.

In addition, the disk unit 200 may further include a ring-shaped disk guide 212 with a circular cross-section that is fixed along the inner side of the lower edge of the first plate 210.

In addition, the disk unit 200 has a disc seating step 240 that is steppedly recessed on the upper surface of the base flange 140 to guide the seating of the disk guide 212, and an inner edge of the disk seating step 240. Accordingly, a guide slope 242 may be further provided that is cut to be inclined upward toward the upper surface of the base flange 140.

Here, the inclination angle θ formed between the guide slope 242 and the bottom surface of the disk seating step 240 may be 90 to 130 degrees as shown in FIG. 4.

At this time, when the inclination angle (θ) is less than 90 degrees, the disk guide 212 gets caught on the inner edge of the disk seating step 240, which may interfere with seating, and when the inclination angle (θ) exceeds 130 degrees, the disk guide 212 It is difficult to maintain the state in which the disk 212 is seated on the disk seating step 240, so the disk unit 200 may shake as a whole due to explosion pressure or vibration.

Therefore, the inclination angle (θ) may preferably be manufactured to be around 120 degrees.

Meanwhile, the elastic support portion 300 includes a support piece 330 having an upper surface facing the end plate 120, and a step protruding from the lower surface of the support piece 330 to face the inner peripheral surface of the third end of the spring 301. The beam may further include a first support stone piece 310 formed in the shape of a circular block having an outer peripheral surface.

In addition, the elastic support portion 300 is a second support protrusion piece that protrudes from the upper surface of the disk portion 200 toward the first support protrusion piece 310 and is formed in a cylindrical shape with an outer peripheral surface facing the inner peripheral surface of the spring 301. (320) may be further provided.

Here, the third end is seated on the support piece 330, the fourth end is seated on the upper surface of the disk unit 200, and a portion of the elastic force adjusting portion 500 is formed on the upper surface of the support piece 330. It can be figured out.

That is, the inner peripheral surface of the third end of each of the springs 301 faces the outer peripheral surface of the first support protrusion piece 310, and the inner peripheral surface of the fourth end faces the outer peripheral surface of the second support protrusion piece 320, thereby forming a plurality of springs 301, respectively. is supported between the end plate 120 and the upper surface of the disk unit 200.

In addition, the length from the upper surface of the disk unit 200 to the upper end of the second support protrusion piece 320 is smaller than the length of the virtual line perpendicular to the first end edge and the second end edge of the casing 110, as shown in FIG. 3. It can be formed the same way.

In addition, when the disc unit 200 moves toward the end plate 120 as the exhaust duct and the pressure release chamber 101 communicate with the explosion pressure of the exhaust duct, the movement limit of the upper surface of the disc unit 200 is the middle flange 112. ) would be desirable to reduce the explosion pressure discharge of gas.

Meanwhile, the elastic force adjusting unit 500 protrudes from the upper surface of the support piece 330, which faces the end plate 120 and has a lower surface on which the third end is seated, as shown in FIG. 5, and penetrates the end plate 120. An adjustment bolt 520 may be further provided.

The adjustment nut 510 may be screwed to the adjustment bolt 520 protruding from the upper surface of the end plate 120 and fixed to the upper surface of the end plate 120.

Accordingly, the elastic force of the spring 301 is finely adjusted by the length of the adjustment bolt 520 protruding from the upper surface of the end plate 120 depending on the degree of coupling of the adjustment nut 510.

Meanwhile, the elastic force adjusting unit 500 is fixed to the upper surface of the support piece 330 and is fixed to the spacer 522, which is fixed to the outer peripheral surface of the tip of the adjustment bolt 520, and the lower surface of the end plate 120 for adjustment. A guide nut 530 that guides the bolt 520 may be further provided.

In addition, the elastic force adjusting unit 500 includes a flat washer 541 that is seated on the upper surface of the support piece 330 and through which the adjustment bolt 520 passes, and a flat washer 541 that is seated on the upper surface of the flat washer 541 and has an adjustment bolt 520 ) may further be provided with an anti-loosening washer 542 penetrating.

In addition, the elastic force adjusting unit 500 is seated on the upper surface of the anti-loosening washer 542, contacts the upper surface of the adjusting nut 510 screwed with the adjusting bolt 520, and is screwed with the adjusting bolt 520. An anti-loosening nut 550 that secures the adjustment nut 510 may be further provided.

In addition, the elastic force adjusting unit 500 may further include a temporary welding portion 560 formed at at least one point along the edge of the contact portion of the anti-loosening nut 550 and the adjusting nut 510.

Therefore, in an actual field, after removing the temporary weld portion 560 with a grinder, the tension of the spring 301 can be readjusted according to the forward and reverse rotation of the adjustment nut 510.

As described above, the basic technical idea of the present invention is to provide an explosion relief valve assembly for the exhaust duct that is installed in the exhaust duct of the engine to reliably extinguish the flame of the gas and effectively reduce the explosion pressure of the gas. You can see that it's happening.

And, of course, many other modifications and applications are possible for those skilled in the art within the scope of the basic technical idea of the present invention.

100...main body
101...pressure relief chamber
110...Casing
112...middle flange
120...end plate
130...connection flange
135...Base gasket
140...Base flange
145...end gasket
150...end flange
161...inner protection box
162...External protective box
163...Internal communication hole
164...External communication hole
170...Flame barrier
180...stud bolt
182...Fixing nut
190...fixed pipe
200...disk part
210...First plate
212...Disk guide
220...2nd plate
230...disk case
240... Disc seating step
242...Guided pardon
300...elastic support
301...Spring
310...1st supporting stone
320...2nd support stone
330...support
500...elasticity control unit
510...adjustment nut
520...adjustment bolt
522...Spacer
530...Guide nut
541...flat washer
542... Anti-loosening washer
550...anti-loosening nut
560... Temporary welding area
θ...tilt angle

Claims (5)

A casing mounted on an exhaust duct of an engine and having a pressure release chamber in communication with the exhaust duct formed therein, and an end mounted on a second end of the casing with respect to the first end of the casing mounted on the exhaust duct. a main body including a plate;
a disk part built in the pressure release chamber, parallel to the end plate, dividing the internal space of the casing upward and downward, and movable toward the end plate by explosion pressure inside the exhaust duct;
an elastic support portion having a third end facing the end plate and a fourth end facing the disk portion and including a plurality of springs radially disposed within the pressure relief chamber; and
It includes an adjustment nut formed on a surface of the end plate facing the atmosphere with respect to the back surface of the end plate facing the disc unit and connected to each of the plurality of springs, and all of the plurality of springs with respect to the disc unit. An explosion relief valve assembly for an exhaust duct, characterized in that it includes an elastic force control unit capable of adjusting the elastic repulsion force.
In claim 1,
The main body part,
A connection flange connected to the exhaust duct,
A base flange stacked in contact with the connection flange,
A base gasket disposed between the connection flange and the base flange,
an intermediate flange extending along the first end edge of the casing opposite the base flange and parallel to the base flange;
a flat ring-shaped end flange disposed between the end plate and the second end edge of the casing;
a flat ring-shaped end gasket disposed between the end plate and the end flange;
A cylindrical inner protective passage having both end edges fixed to the middle flange and the base flange,
A cylindrical flame barrier having an inner peripheral surface facing the outer peripheral surface of the inner protective cylinder and disposed between the intermediate flange and the base flange,
A cylindrical outer protective passage having an inner peripheral surface facing the outer peripheral surface of the flame barrier and both end edges fixed between the middle flange and the base flange,
A plurality of internal communication holes formed along the outer peripheral surface of the internal protection tube and communicating with the pressure relief chamber;
A plurality of external communication holes formed along the outer circumferential surface of the external protection tube,
It has a fifth end sequentially penetrating the end flange, the end gasket, and the end plate, and a sixth end sequentially penetrating the base flange, the base gasket, and the connection flange, radially on the end plate. A plurality of stud bolts arranged,
A fixing nut screwed to the outer peripheral surface of the fifth end and the sixth end, respectively,
It further includes a fixed pipe having a seventh end in contact with the end flange, an eighth end in contact with the base flange, and an inner peripheral surface facing the outer peripheral surface of each of the plurality of stub bolts,
An explosion relief valve assembly for an exhaust duct, characterized in that the outer peripheral surface of the disk portion faces the outer peripheral surface of each of the fixed pipes.
In claim 2,
The disk unit,
A first plate in the shape of a disk having a lower surface facing the base flange,
A second plate in the shape of a disk having an upper surface facing the end plate,
a disk case formed in a cylindrical shape with both ends penetrating, coupled to the upper surface of the first plate and the lower surface of the second plate;
a ring-shaped disk guide with a circular cross-section fixed along the inner side of the lower edge of the first plate;
A disk seating step that is steppedly recessed on the upper surface of the base flange to guide seating of the disk guide,
An explosion relief valve assembly for an exhaust duct, further comprising a guide slope cut along an inner edge of the disc seating step and inclined upward toward the upper surface of the base flange.
In claim 1,
The elastic support part,
A support piece having an upper surface facing the end plate,
A first support protrusion piece that protrudes stepwise from the lower surface of the support piece and is formed in the shape of a circular block having an outer peripheral surface facing the inner peripheral surface of the third end of the spring;
It further includes a second support protrusion piece that protrudes from the upper surface of the disk unit toward the first support protrusion piece and is formed in a cylindrical shape with an outer peripheral surface facing the inner peripheral surface of the spring,
The third end is seated on the support piece and the fourth end is seated on the upper surface of the disk unit,
An explosion relief valve assembly for an exhaust duct, wherein a portion of the elastic force adjusting portion is formed on an upper surface of the support piece.
In claim 1,
The elasticity control unit,
an adjustment bolt that faces the end plate and protrudes from an upper surface of a support piece having a lower surface on which the third end is seated and penetrates the end plate;
It includes the adjustment nut screwed to the adjustment bolt protruding from the upper surface of the end plate and fixed to the upper surface of the end plate,
An explosion relief valve assembly for an exhaust duct, characterized in that the elastic force of the spring is finely adjusted by the length of the adjustment bolt protruding from the upper surface of the end plate depending on the degree of coupling of the adjustment nut.

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