KR102582906B1 - Heating value controllable device for real scale fire test calibration burner system - Google Patents

Abstract

The present invention relates to a device for controlling heat generation and duration through control of fuel surface area. More specifically, it is used in the form of a cover on the top of a burner for actual fire experiments, and the surface area desired by the user can be set as the plate moves in the form of a slide. By adjusting the calorific value, it is possible to generate a variety of flames from a low calorific value range to a high calorific value range, and by adjusting the duration of exposure to fire, it is possible to experiment with various fire scenarios. About a device for controlling the calorific value and duration by controlling the fuel surface area. will be.
A preferred embodiment of the present invention includes a side plate formed to have a square frame with upper and lower openings; An opening of a certain size is formed in the center of the upper part of the side plate in the horizontal direction from the top of the side plate to the inside of the side plate, and is spaced a certain distance from the bottom to the top to form a lower guide plate, a middle guide plate, and an upper guide plate. The upper plate; a lower extension plate whose end is inserted into the lower space between the lower guide plate and the middle guide plate on both opposite sides of the upper plate and is configured to slide in the direction of the opening to adjust the length; It includes an upper extension plate, the end of which is inserted into the upper space between the upper guide plate and the middle guide plate on both sides facing the other side of the upper plate, and is configured to slide in the direction of the opening to adjust the length.

Description

Device for controlling heat generation and duration by controlling fuel surface area {HEATING VALUE CONTROLLABLE DEVICE FOR REAL SCALE FIRE TEST CALIBRATION BURNER SYSTEM}

The present invention relates to a device for controlling heat generation and duration through control of fuel surface area. More specifically, it is used in the form of a cover on the top of a burner for actual fire experiments, and the surface area desired by the user can be set as the plate moves in the form of a slide. By adjusting the calorific value, it is possible to generate a variety of flames from a low calorific value range to a high calorific value range, and by adjusting the duration of exposure to fire, it is possible to experiment with various fire scenarios. About a device for controlling the calorific value and duration by controlling the fuel surface area. will be.

As shown in Figure 1, the burner for the actual fire experiment that is currently used is made of steel in the form of a box with an open top, and as shown in Figure 2, the burner for the actual fire experiment generates a flame using liquid fuel to burn pillars, etc. A fire experiment was conducted on the same object.

However, such burners for real-life fire experiments had the problem of having to manufacture new burners of different sizes depending on the capacity of the liquid fuel (heptane, gasoline, etc.) to be tested, or adjusting the liquid fuel to fit the capacity of the existing burner. Therefore, there was a problem in that it was difficult to control the amount of heat generated.

The technology behind the present invention is Patent Publication No. 2010-0049866, “Calibration Burner for Real Fire Experiments” (Patent Document 1).

In the above background technology, a burner device for generating a fire and testing fire performance includes: a fuel supply unit equipped with a fuel reservoir containing liquid fuel and a fuel supply pump to supply liquid fuel through a pipe; a combustion unit having a plurality of nozzles connected to the pipe of the fuel supply unit and a plurality of supports supporting the nozzles at a certain height; And a controller having a flow control valve and a flow meter mounted on the pipe of the fuel supply unit, and controlling the flow rate of liquid fuel supplied from the fuel supply unit to the nozzle in multiple stages to adjust the heat generation amount of the flame generated in the nozzle of the combustion unit; We propose a 'calibration burner for real fire experiments, which is characterized in that it generates flames with multi-stage heating values, including the use of liquid heptane as fuel, so the device can be constructed with a simple structure, and the heating value can be adjusted at the nozzle. This allows flames to be generated in a variety of ways, from a low calorific value range to a high calorific value range, and to enable experimental measurements at various temperatures.

However, the above background technology is not only complicated in terms of controlling the calorific value in the nozzle itself, but also involves manufacturing new burners of different sizes depending on the capacity of liquid fuel (heptane, gasoline, etc.) or liquid fuel to match the capacity of an existing burner. There was a problem of having to adjust the fuel.

Patent Publication No. 2010-0049866 “Calibration burner for real fire experiments”

The present invention is intended to solve the above problems, and allows the user to adjust the heat generation amount by setting the desired surface area, thereby generating a variety of flames from a low heat value range to a high heat value range, and controlling the duration of exposure to fire. The purpose is to provide a device for controlling heat generation and duration by controlling the surface area of the fuel to enable experiments with various fire scenarios.

The present invention includes a side plate formed to have a square frame with open upper and lower portions; An opening of a certain size is formed in the center of the upper part of the side plate in the horizontal direction from the top of the side plate to the inside of the side plate, and is spaced a certain distance from the bottom to the top to form a lower guide plate, a middle guide plate, and an upper guide plate. The upper plate; a lower extension plate whose ends are inserted into the lower space between the lower guide plate and the middle guide plate on both opposing sides of the upper plate and are configured to slide in the direction of the opening to adjust the length; An upper extension plate, the end of which is inserted into the upper space between the upper guide plate and the middle guide plate on both sides facing the other side of the upper plate, and is configured to slide in the direction of the opening to adjust the length; characterized in that it comprises a. The aim is to provide a device for controlling heat generation and duration by controlling the fuel surface area.

In addition, a sagging prevention member is comprised of a length adjustment member fixed to the upper surface of the upper guide plate, a fixing member fixed to the upper surface of the lower expansion plate, and a length adjustment rod configured to connect the fixing member and the length adjustment member. The object of the present invention is to provide a device for controlling heat generation and duration through adjustment of the fuel surface area, which is characterized by adjusting the protrusion length of the lower expansion plate and preventing the lower part from sagging.

In addition, the fixing member of the anti-sagging member is in the shape of a vertical plate and the lower end is joined to the upper surface of the lower expansion plate, and the length adjustment member is in the shape of a vertical plate and has an adjustment hole that penetrates the central part so that the lower end is the upper part of the upper guide plate. It is connected to the surface, and the length adjustment rod has one end connected to the other side of the fixing member and the other end is configured to penetrate the adjustment hole of the length adjustment member. I want to do it.

In addition, it is intended to provide a device for controlling heat generation and duration through adjustment of the fuel surface area, wherein the length adjustment rod is recessed on the outer circumferential surface at regular intervals from the other end to one side to form a length adjustment groove.

In addition, it is intended to provide a device for controlling heat generation and duration by controlling the fuel surface area, which is characterized in that a vertical plate-shaped reinforcing rib is formed to connect one side of the fixing member and the upper surface of the lower expansion plate.

In addition, it is intended to provide a device for controlling heat generation and duration by controlling the fuel surface area, wherein the lower expansion plate and the upper expansion plate are cut in an arc shape on opposing surfaces to form a concave inlet.

The device for controlling the heat generation and duration by controlling the fuel surface area of the present invention is in the form of a slide and can control the heat generation by setting the surface area desired by the user as the plate moves, thereby generating a variety of flames from a low calorific value range to a high calorific value range. , it has the very useful effect of allowing experiments with various fire scenarios by controlling the duration of exposure to fire.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention along with the detailed description of the invention. Therefore, the present invention is limited to the matters described in the attached drawings. It should not be interpreted as limited.
Figure 1 is a diagram showing a conventional burner for an actual fire experiment.
Figure 2 is a diagram showing a local fire test of a pillar using a conventional burner for a real fire test.
Figure 3 is an exploded perspective view showing the device for controlling the heating value and duration through controlling the fuel surface area of the present invention installed in a burner for an actual fire experiment.
Figure 4 is a combined perspective view of Figure 3.
FIG. 5 is a cross-sectional view taken along line AA of FIG. 4.
Figure 6 is an enlarged view of the main part of Figure 5.
Figures 7a and 7b are plan views of a device for controlling heat generation and duration by controlling the fuel surface area of the present invention.
FIG. 8A is a cross-sectional view taken along line CC of FIG. 7, and FIG. 8B is a cross-sectional view taken along line BB of FIG. 7.

Below, the present invention will be described in detail with reference to embodiments shown in the attached drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to preferred embodiments.

Figure 3 is an exploded perspective view showing the device for controlling heat generation and duration through fuel surface area control of the present invention installed in a burner for an actual fire experiment, and Figure 4 is a combined perspective view of Figure 3.

As shown in Figures 3 and 4, the device for controlling heat generation and duration through fuel surface area control (1) of the present invention is configured to cover the upper part of the burner (2) for actual fire experiments in the form of a cover, and is configured to cover the upper part of the burner (2) for actual fire experiments in the form of a cover through fuel surface area control. By adjusting the size of the opening 150 of the heat generation and duration control device (1) to set the surface area desired by the user, the heat generation amount can be adjusted, and the duration of exposure to fire can be adjusted to enable experiments with various fire scenarios. will be.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3.

As shown in FIGS. 3 and 4, the device for controlling heat generation and duration through fuel surface area control (1) of the present invention is made in the form of a square cover that can cover the top of the burner (2) for actual fire testing.

For this purpose, the side plate 110 is formed to have a rectangular frame shape by joining or bending vertical plates using various known methods such as bending and welding to have a rectangular frame with openings at the top and bottom.

When the heat generation and duration control device 1 through controlling the fuel surface area covers the upper part of the burner 2 for the actual fire experiment, the inner surface of the side plate 110 is the burner 2 for the actual fire experiment. A frame larger than the size of the flat cross-section of the burner (2) for the actual fire experiment is formed so that it can be in contact with the outer surface of or spaced a certain distance apart.

An opening 150 is formed at the upper end of the rectangular frame-shaped side plate 110, and a lower expansion plate 130 and an upper expansion plate 140 are formed to adjust the size of the opening 150. An upper plate 120 is formed at the upper end of the side plate 110 so that the expansion plate 130 and the upper expansion plate 140 can slide and move.

This upper plate 120 does not cover the entire upper part of the rectangular frame-shaped side plate 110, but is configured to cover only the upper concave portion of the side plate 110, so that an opening 150 is formed in the central portion of the side plate. (110) It is formed in the horizontal direction inside the side plate 110 at the upper end.

In addition, the upper plate 120 is made of three plates so that the lower expansion plate 130 and the upper expansion plate 140 can be inserted and withdrawn or stored.

That is, as shown in FIG. 5, a horizontal plate-shaped lower guide plate 121, a middle guide plate 122, and an upper guide plate 123 are formed so that they are spaced a certain distance from the bottom to the top, respectively, so that the lower guide plate ( A lower space 126 is formed between the upper guide plate 121 and the middle guide plate 122, and an upper space portion 127 is formed between the upper guide plate 123 and the middle guide plate 122.

One end of the lower guide plate 121, the middle guide plate 122, and the upper guide plate 123 is joined to the inner surface of the side plate 110, or the lower guide plate 121 and the middle guide plate 122 ), one end of the upper guide plate 123 can be joined with a finishing plate, etc., and then bonded to the side plate 110, or a horizontal plate can be added on the inner side of the side plate 110 to be spaced a certain distance apart and joined. there is.

A horizontal plate-shaped lower expansion plate 130 and an upper expansion plate 140 are installed on the upper plate 120. The lower expansion plate 130 guides the lower plate on both opposing sides of the upper plate 120. The end is inserted into the lower space 126 between the plate 121 and the intermediate guide plate 122 and slides in the direction of the opening 150 to enable length adjustment.

In addition, the upper extension plate 140 has its ends retracted into the upper space 127 between the upper guide plate 123 and the middle guide plate 122 on both sides facing the other side of the upper plate 120 to form an opening 150. It is configured to slide in the ) direction so that the length can be adjusted.

When configured in this way, the size of the opening 150 can be adjusted by adjusting the length of the part where the lower expansion plate 130 and the upper expansion plate 140 are stored. The lower expansion plate 130 on both sides around the corner can be adjusted. It is composed of two overlapping plates, the upper expansion plate 140, so that the amount of heat generation and duration can be adjusted by easily changing the surface area to a rectangular or square shape.

In particular, the upper expansion plate 140 located on the upper part of the lower expansion plate 130 is supported on the upper part of the lower expansion plate 130 at the part that overlaps the lower expansion plate 130 to enable stable movement. To prevent sagging of the lower expansion plate 130, a sagging prevention member 20 may be installed.

Figure 6 is an enlarged view of the main part of Figure 5.

As shown in FIGS. 5 and 6, the sagging prevention member 20 is fixed to the length adjustment member 230 fixed to the upper surface of the upper guide plate 123 and the upper surface of the lower expansion plate 130. It is made up of a fixing member 210 and a length adjusting rod 220 configured to connect the fixing member 210 and the length adjusting member 230, so that the protruding length of the lower expansion plate 130 is adjusted by the length adjusting rod ( 220), it is possible to prevent the lower expansion plate 130 from sagging.

As for the sagging prevention members 20, a length adjustment rod 220 is installed in the direction of movement of the lower expansion plate 130. As shown, one or two sagging prevention members 20 can be installed in the required number at the required location.

In particular, the fixing member 210 of the anti-sag member 20 has a vertical plate shape so that its lower end is joined to the upper surface of the lower expansion plate 130, and the length adjustment member 230 has a vertical plate shape at the center. The adjustment hole 231 is perforated so that the lower end is joined to the upper surface of the upper guide plate 123, and the length adjustment rod 220 has one end joined to the other side of the fixing member 210 and the other end It is configured to penetrate the adjustment hole 231 of the length adjustment member 230, so that the protruding length of the lower extension plate 130 fixed to the fixing member 210 can be adjusted by pushing or pulling the length adjustment rod 220. .

In addition, the length adjustment rod 220 is recessed into the outer peripheral surface at regular intervals from the other end to one side to form a length adjustment groove 221, so that the length adjustment rod 220 is adjusted when it passes through the adjustment hole 231. The length adjustment groove 221 is placed on the ball 231 so that the exact length can be adjusted and fixed.

Since the lower end of the fixing member 210 is fixed to the upper surface of the lower expansion plate 130 by a method such as welding, in order to increase the joint area and prevent problems such as the joint falling off, one side of the fixing member 210 A vertical plate-shaped reinforcing rib 211 may be configured in a direction perpendicular to the fixing member 210 to connect the upper surfaces of the lower expansion plate 130 and the lower expansion plate 130.

Figures 7a and 7b are plan views of a device for controlling heat generation and duration through controlling the fuel surface area of the present invention.

It consists of two overlapping plates, the lower expansion plate 130 and the upper expansion plate 140, so that the heat generation amount and duration can be adjusted by easily changing the surface area to a rectangle or square, as shown in Figure 7a, especially as shown in Figure 7b. , the lower expansion plate 130 and the upper expansion plate 140 are cut in an arc shape on each opposing surface to form concave portions 131 and 141, so that the opening 150 has a circular, oval, and close to circular shape. It can be configured to allow experiments with various fire scenarios.

FIG. 8A is a cross-sectional view taken along line C-C of FIG. 7, and FIG. 8B is a cross-sectional view taken along line B-B of FIG. 7.

In addition, the lower expansion plate 130 and the upper expansion plate 140 are stored inside the lower space 126 and the upper space 127 and are slidably pulled out. As shown in FIG. 8, the lower guide plate 121 And on the upper surface of the intermediate guide plate 122, rails 128 and 129 are formed from the inside to the outside on both sides in the width direction, and rails are formed at the lower portions of the lower expansion plate 130 and the upper expansion plate 140, respectively. Guide grooves (138) (149) corresponding to (128) (129) are formed so that the guide grooves (138) (149) are seated on the rails (128) (129) and move along the rails (128) (129). This can be done to ensure stable sliding.

[Table 1] shows the heat generation amount and duration through the liquid fuel fire calculation formula in the SFPE Handbook (5th ed, 2016).

Liquid fuel fire calculation formula in SFPE Handbook (5th ed, 2016) calorific value duration

As in Table 1, the heat generation amount and duration can be easily calculated through the liquid fuel fire calculation formula in the SFPE Handbook (5th ed, 2016), and the fuel surface area (0.64m ² , 0.25m ^{2 )} and fuel quantity (50L, 90L, When calculated as 100L), the results are shown in Table 2 below.

Through the results in Table 2, it can be seen that the calorific value is determined depending on the surface area of the fuel, and the duration varies depending on the amount of fuel.

In an actual fire test conducted on February 3, 2022, 90L and 126L were tested through a burner with a surface area of 0.64m ² , and the heating value was the same, with 90L lasting 40 minutes and 126L lasting 50 minutes.

Fuel surface area and Calculate heat generation and duration according to fuel amount fuel surface area Fuel volume (volume of liquid fuel) calorific value duration
064m ² 50L
18149kW 522.12sec 90L 939.82sec 100L 1044.2sec
^0.25m2 50L
52071kW 1336.6sec 90L 2405.9sec 100L 2673.3sec

Therefore, in the present invention, the heat generation amount and duration according to the fuel surface area and fuel amount can be adjusted by setting the user's desired surface area as the plate moves in the form of a slide.

The device for controlling the heat generation and duration by adjusting the fuel surface area of the present invention as described above is in the form of a slide and can adjust the heat generation by setting the surface area desired by the user as the plate moves, thereby controlling the heat generation from a low to a high heat generation range. It has the very useful effect of enabling experiments with various fire scenarios by controlling the duration of exposure to fire.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various variations and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such variations and modifications, but is limited by the claims appended below.

1: Heat generation and duration control device through fuel surface area control
110: side plate
120: upper plate
130: lower expansion plate
140: upper expansion plate
150: opening
20: Sagging prevention member
2: Burner for actual fire experiment

Claims (7)

A side plate 110 formed to have a square frame with open upper and lower portions;
An opening 150 of a certain size is formed in the central portion of the upper part of the side plate 110, and is formed in the horizontal direction inside the side plate 110 at the upper end of the side plate 110, and is spaced a certain distance from the bottom to the top. An upper plate 120 consisting of a guide plate 121, a middle guide plate 122, and an upper guide plate 123;
The end is inserted into the lower space 126 between the lower guide plate 121 and the middle guide plate 122 on both opposing sides of the upper plate 120 and slides in the direction of the opening 150 to adjust the length. A lower expansion plate 130 configured to enable;
The end is inserted into the upper space 127 between the upper guide plate 123 and the middle guide plate 122 on both sides of the upper plate 120 and slides in the direction of the opening 150 to adjust the length. A device for controlling heat generation and duration through adjustment of fuel surface area, comprising an upper expansion plate (140) configured to do so. In claim 1,
A length adjustment member 230 fixed to the upper surface of the upper guide plate 123,
A fixing member 210 fixed to the upper surface of the lower expansion plate 130,
The sagging prevention member 20 is comprised of a length adjustment rod 220 configured to connect the fixing member 210 and the length adjustment member 230,
A device for controlling heat generation and duration through adjustment of the fuel surface area, characterized in that it adjusts the protrusion length of the lower expansion plate (130) and prevents the lower part from sagging. In claim 2,
The fixing member 210 of the anti-sag member 20 has a vertical plate shape and the lower end is joined to the upper surface of the lower expansion plate 130,
The length adjustment member 230 has a vertical plate shape and an adjustment hole 231 is formed through the central portion, so that the lower end is joined to the upper surface of the upper guide plate 123,
The length adjustment rod 220 is configured to have one end joined to the other side of the fixing member 210 and the other end penetrating the adjustment hole 231 of the length adjustment member 230 through control of the fuel surface area. Heat generation and duration control device. In claim 3,
The length adjustment rod 220 is a device for controlling heat generation and duration through adjustment of the fuel surface area, characterized in that the length adjustment groove 221 is formed by recessing the outer peripheral surface at regular intervals from the other end to one direction. In claim 3,
A device for controlling heat generation and duration by controlling the fuel surface area, characterized in that a vertical plate-shaped reinforcing rib (211) is formed to connect one side of the fixing member (210) and the upper surface of the lower expansion plate (130). In claim 1,
The lower expansion plate 130 and the upper expansion plate 140 are cut in an arc shape on opposing surfaces to form concave portions 131 and 141. A device for controlling heat generation and duration through control of the fuel surface area. In claim 1,
Rails 128 and 129 are formed on both sides of the lower guide plate 121 and the middle guide plate 122 from the inside to the outside, respectively,
Guide grooves 138 and 149 corresponding to the rails 128 and 129 are formed in the lower portions of the lower expansion plate 130 and the upper expansion plate 140, respectively.
A device for controlling heat generation and duration by controlling the fuel surface area, characterized in that the guide grooves (138) (149) are seated on the rails (128) (129) and move along the rails (128) (129).

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