KR100704001B1 - Exhaust apparatus for mass exhaust of gas and prevention for over pressure - Google Patents

Abstract

The present invention relates to a discharge damper provided with an opening and closing plate, the structure that is conventionally opened up so that the upper and lower openings of the opening and closing plate of the outlet opening at the same time, the moment can be added to the center of rotation to the opening and closing plate By installing a weight to increase the moment to act in the direction of opening and closing the opening plate, the opening and closing plate is quickly opened within a certain range, and when the pressure decreases, it is closed by the weight quickly to discharge a large amount of gas And it relates to a mass discharge of the gas that can prevent the occurrence of overpressure in the protective zone or the smoke control area and a discharge device for preventing overpressure.

Exhaust system, fire extinguishing system, smoke control system, switchboard, counterweight, pressure control weight

Description

Exhaust apparatus for Mass exhaust of gas and Prevention for over pressure}

1 is a perspective view of a mass discharge and overpressure preventing discharge device of the present inventors,

Figure 2 is an exploded perspective view of a mass discharge and overpressure prevention discharge device of the present inventors,

Figure 3a is a cross-sectional view of the action of Figure 1 when there is no gas pressure or less than the set pressure,

3b is a cross-sectional view of the operation of Figure 1 when the pressure of the gas is more than the set pressure,

3C is a cross-sectional view of another embodiment of the present invention;

Figure 4 is a state diagram of using a plurality of gas discharge device for preventing the discharge and overpressure of the present inventors.

Explanation of symbols on the main parts of the drawings

1: fixing plate 2: outlet

5: coupling groove 10: hinge

11: bearing 12: slide groove

13 housing 15 rotation axis

20: opening and closing plate 21: hinge coupling hole

22: through groove 30, 43: moment adjusting device

31 housing 32 fixing hole

33: control bar coupling hole 34: rotation axis

40, 41: control bar 42, 45: counterweight

50: fixing bracket 52: through hole

60: adjustment member 65: weight

70: pressure control weight 80: pressure outlet

The present invention is installed in the pressure discharge port of the gas fire extinguishing equipment protection zone or the smoke control zone is opened when the pressure in the protection zone or smoke control zone reaches the set pressure to discharge the gas or wind pressure introduced into the protection zone or smoke control zone to the outside A discharge damper having an opening / closing plate, comprising: a fixing plate having a rotatable opening / closing plate installed at the outlet, and when the pressure reaches a set pressure, the opening / closing plate is rotated and opened, and the pressure applied to the opening / closing plate is reduced. The present invention relates to a mass discharge of the gas and an overpressure preventing discharge device for closing the closing plate quickly.

In general, when a fire occurs in a building such as an apartment or a building, a large amount of toxic gas is generated during combustion of a building's interior material, resulting in a lot of casualties and a great problem in fire suppression and lifesaving work. .

In order to solve this problem, the protection area (fire room) has been equipped with a fire extinguishing system for supplying a gas (CO₂, halogen compound, etc.) that can suppress the combustion reaction for extinguishing through a gas pipe to extinguish the fire, The smoke generated from the air supply pressure type ventilation system that can supply the outside air through the duct was removed by using a blower (or fan) to prevent the smoke from escaping from the platform of the emergency lift or the special evacuation stairs. In addition, the overpressure generated in the protection zone or the ventilation zone was caused by the opening and closing plate hinged to the upper portion of the discharge damper installed in the pressure discharge port to rotate to discharge outside the protection zone or the ventilation zone.

However, in the case of the discharge damper having the above structure, there were the following problems.

The opening / closing plate of the discharge damper installed in the protection or ventilation area is the structure that the upper part is hinged to the discharge damper and is rotated to the outside of the protection area or the ventilation area based on the hinge axis. In the state that the opening and closing plate is closed, the pressure acts in a direction perpendicular to the opening and closing plate so that all of the pressure is applied to the opening and closing plate, so that the opening and closing plate is easily rotated and opened. As the inclination angle becomes larger, the effective working area that pressurizes the opening and closing plate is significantly reduced, and the pressing force acting on the opening and closing plate is reduced, and the moment acting in the direction of closing the opening and closing plate in proportion to the distance that the opening and closing plate is opened. As it became larger, the opening angle could not be increased.

Therefore, when a large amount of discharge is required, in order to solve this problem, there is a problem in that a separate device is required to increase the capacity of the facility, as well as to suppress the occurrence of overload in the protection area or the ventilation area.

The present invention has been made in order to solve the above problems, it is installed in the pressure discharge port of the protection zone or the smoke control area of the gas-based fire extinguishing equipment, when the internal pressure of the protection zone or smoke control zone in case of emergency, the opening and closing plate is The upper and lower parts of the pressure outlet are automatically opened at the same time by being rotated based on the rotational axis installed eccentrically in the center, and the moment control port and the pressure control weight are installed on the switchboard to add an arbitrarily adjustable moment to the rotation center of the switchboard. By making it possible, not only to increase the opening area of the opening and closing plate in a short time, but also to provide a large amount of gas discharge and overpressure prevention discharge device to facilitate the opening and closing function.

In order to achieve the above object, the present invention is hinged eccentrically to the upper side from the center of the rectangular plate-shaped fixing plate formed with an outlet on the inside, the hinge is coupled to the opening and closing plate for opening and closing the outlet, on one side of the opening and closing plate It is provided with a moment adjusting device that can adjust the moment added to the rotation center.

In the present invention, the hinge is provided with a slide groove in the axial direction in the upper and lower portions of the housing, one end of the rotating shaft is inserted, so that the slide groove of the hinge is coupled to the coupling groove formed on the left and right sides of the central portion of the fixed plate. do.

The moment adjusting device is installed in the through groove formed in the center of rotation of the opening and closing plate, one end of the adjustment bar is screwed in a direction perpendicular to the rotation axis on the outer circumferential surface of the cylindrical housing in which the rotation shaft is inserted, the other end of the counterweight in rotation It is screwed so that the position can be adjusted, the outer peripheral surface of the housing forms a fixing hole that is coupled to the anti-rotation fixture.

In addition, the moment adjusting device is coupled to one end of the control bar in a direction perpendicular to the upper side of the center of rotation of the opening and closing plate, the other end of the counterweight by rotating the counterweight by rotating the screw coupled to the position adjustment is possible by adding a moment to the center of rotation It can be done.

In addition, the present invention lays a pressure control weight that can set the threshold pressure at which the opening and closing plate begins to open in the lower portion of the rotation center of the opening and closing plate.

The pressure adjusting weight is further screwed to the center of the bolt-shaped control member coupled to both ends to the '┗'-shaped fixing bracket which is spaced up and down on the lower side of the center of rotation of the opening and closing plate, thereby increasing the ㆍ It is possible to change the center of gravity by moving and fixing down.

In addition, the opening and closing plate is provided with one or more auxiliary outlets formed in the inner side and an auxiliary opening and closing eccentrically hinged to the auxiliary outlet from the center to the upper side, the auxiliary opening and closing plate is provided on one side of the auxiliary opening and closing plate Auxiliary discharge device is installed can be installed a secondary moment adjusting device that can adjust the moment to be.

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

1 is a perspective view of a mass discharge and overpressure prevention discharge device of the present invention.

As shown, the opening and closing plate 20 is coupled to the hinge 10 installed on the fixed plate 1, the left and right sides of the upper eccentric position is installed to enable a 360-degree rotation relative to the hinge 10 As a result, the outlet 2 of the fixed plate 1 is opened and closed in accordance with the rotation of the opening and closing plate 20.

On the other hand, the moment adjusting device 30 is rotatably coupled to the through groove 22 formed in the center of the rotation center of the opening and closing plate 20, the angle of the control bar 40 is coupled to the moment control opening (30) The fastener 32a is inserted into the fixing hole 32 formed in the housing 31, and can be fixed at a desired angle by fastening so as not to rotate at a desired angle.

Therefore, when the pressure applied to the opening / closing plate 20 by the pressure of the pressure outlet 80 (shown in FIGS. 3A and 3B) becomes equal to or greater than the set pressure, the opening and closing plate 20 rotates to the adjustment bar 40. The moment due to the load of the installed counterweight 45 increases as the opening angle of the opening and closing plate 20 increases, and the increasing moment acts on the rotation center of the opening and closing plate 20.

On the other hand, the pressure control weight 70 is installed on the rear surface of the lower opening and closing plate 20 of the moment control port 30, when there is no pressure or less than the set pressure, so that the outlet (2) can be closed or maintained in a closed state And, the magnitude of the generated moment can be changed by adjusting the position of the weight 65 provided in the pressure adjusting weight 70 up and down.

Therefore, the size of the moment acting on the opening and closing plate 20 is the inclination angle of the control bar 40, the weight and coupling position of the counterweight 45 coupled to the control bar 40 and the moment of the adjustment port 30 This can be achieved by adjusting the weight and position of the weight 65 coupled to the adjustment member 60 of the lower pressure control weight 70. When the moment is properly adjusted, the pressure in the protective zone or the ventilation zone is When the set pressure is reached, it is opened quickly, and when the pressure is extinguished or below the set pressure, it closes quickly and the outlet 2 is closed.

Figure 2 is an exploded perspective view of a mass discharge and overpressure prevention discharge device of the present inventors.

First, the fixing plate (1) is a frame forming a rectangular outlet (2) inward, the coupling groove (5) is coupled to the left and right sides eccentrically eccentrically upward from the center of the frame Formed.

On the other hand, the hinge 10 has a bearing 11 is inserted into the housing 13 of the hollow pipe shape, the slide groove 12 is formed in the longitudinal direction on the upper and lower outer peripheral surface of the housing 13 The hinge 10 has one end of the rotating shaft 15 press-fitted to the bearing 11 and the other end protrudes inward.

On the other hand, the coupling hole 16 is formed in the cut surface of the other end of the rotary shaft 15 of the semi-circular column protruding inward.

The hinge 10 is fitted into the coupling groove 5 formed on both left and right sides of the frame by using the slide groove 12 formed in the housing 13.

On the other hand, the opening and closing plate 20 is formed in a size corresponding to the outlet (2) to open and close the outlet (2) of the fixed plate (1) by rotation, the through hole 22 of the square in the center of the rotation center ) And through holes 23 on both left and right sides of the through hole 22.

In addition, the hinge coupling holes 21 are formed on both the left and right sides of the center portion of the opening and closing plate 20.

And the lower side of the through groove 22 is formed with a coupling hole 25 to which the fixing bracket 50 is coupled to be spaced up and down.

The hinge 10 is coupled to the coupling groove 5 of the outlet 2 of the fixed plate 1, and the opening and closing plate 20 has hinge coupling holes 21 and the hinge formed at both left and right sides thereof. After matching the coupling hole 16 of the rotation shaft 15 of (10) and fixed with a screw (16a), the opening and closing plate 20 is rotatably installed.

On the other hand, the moment adjusting device 30 is composed of a control bar 40, the housing 31, the rotating shaft 34 and the counterweight 45 is installed, the housing 31 is in the form of a hollow pipe, the outer peripheral surface The fixing hole 32 and the control bar coupling hole 33 is formed in the longitudinal direction, the rotary shaft 34 is inserted into the housing 31 so that both ends are exposed to the outside of the housing 31.

Both ends of the exposed rotating shaft 34 are semi-circular pillars, and two coupling holes 35 are formed at both sides of the cut portion.

In addition, the control bar coupling hole 33 is coupled to the control bar 40, both ends of the control bar 40 is a screw is formed, one end is coupled to the control bar coupling hole 33, the other end of the counterweight 45 are combined.

At this time, the position movement of the counterweight 45 can be adjusted by turning the counterweight 45 coupled to the threaded portion of the adjustment bar (40).

The moment adjusting device 30 is a screw after matching the coupling hole 35 at both ends of the rotating shaft 34 and the through holes 23 formed at both left and right sides of the through groove 22 of the opening and closing plate 20, respectively. It is fixed to (23a), the rotational axis 34 of the moment adjustment port 30 is matched with the center of the through groove (22).

When the housing 31 is fixed, the adjustment bar 40 is set at an angle with the upper side of the opening and closing plate 20, and then the fastener 32a is provided in the fixing hole 32 formed on the outer circumferential surface of the housing 31. This is achieved by inserting and tightening (screws, set screws, etc.).

At this time, when fine adjustment of the action moment is necessary, by rotating the counterweight 45 coupled to the control bar 40 to move forward and backward along the longitudinal direction of the control bar 40, the position of the counterweight 45 Adjust to to achieve.

On the other hand, the weight (65) provided on the pressure control weight 70 is coupled to the rear surface of the lower opening and closing plate 20 of the moment adjustment port 30 is the adjustment member coupled to the fixing bracket 50 of the upper and lower sides ( 60 is screwed to the middle portion, the adjustment member 60 is one end of the bolt shape is formed.

The fixing bracket 50 has a '┗' shape, and the coupling holes 25 of the opening and closing plate 20 and the through holes 51 of the fixing bracket 50 coincide with each other and then symmetrically fixed as screws 25a. , The adjusting member 60 is inserted into the through hole 52 formed in the fixing bracket 50 in the lower side, and then screwed the weight 65, in that state to the end of the adjusting member 60 The through hole 52 of the fixing bracket 50 of the upper side is coupled.

At this time, the position of the weight 65 can be changed up and down by rotating the weight 65 coupled to the adjustment member (60).

Figure 3a, 3b is a cross-sectional view of the operation of the discharge device for mass discharge and overpressure prevention of the present invention gas.

3A shows that the pressure is less than or equal to the set pressure, and the opening and closing plate 20 opens the outlet 2 by the weight of the weight 65 and the lower opening and closing plate 20 installed on the lower side of the opening and closing plate 20. It is a figure which shows the closed state.

3B shows a state in which the opening / closing plate 20 is opened because the pressure (arrow direction) of the protection zone or the smoke control zone is equal to or higher than the set pressure, and the load and distance L1 of the counterweight 45 and the weight 65 (L1). The moment by L2 acts counterclockwise and clockwise with respect to the central axis of rotation of the opening and closing plate 20.

When the pressure applied to the opening and closing plate 20 is greater than or equal to the set pressure and the opening and closing plate 20 is opened, the factor of the moment acting on the center of rotation of the opening and closing plate 20 is as follows.

Moment of the moment acting in the counterclockwise direction relative to the center of rotation is the pressure applied to the lower side of the opening and closing plate 20, the weight of the upper side itself of the opening and closing plate 20, the adjustment bar 40 and the counterweight (45) The weight and distance L1, and the factors acting in the clockwise direction are the pressure applied to the upper side of the opening and closing plate 20, the weight of the lower side itself of the opening and closing plate 20, the weight and the distance of the weight 65. (L2).

Therefore, since the center of rotation of the opening and closing plate 20 is eccentrically upward, when the opening and closing plate 20 is above the set pressure in the closed state, the pressure of the pressure discharge port 80 has a relatively large opening and closing plate 20. By acting on the lower portion of the larger, by pushing the lower portion to rotate the opening and closing plate 20 counterclockwise.

At this time, the moment due to the weight of the upper portion of the opening and closing plate 20 and the increase of the moment by the control bar 40 and the counterweight 45 as the opening angle of the opening and closing plate 20 increases, the lower opening and closing plate 20 It is added in the counterclockwise direction (the direction in which the opening and closing plate 20 is opened), which is a direction for canceling the increase in the weight by the negative weight and the pressure control weight 70 to reduce the resistance of the opening and closing plate 20 to the pressure.

On the other hand, in order to prevent the reverse (clockwise) rotation of the opening and closing plate 20, a stopper may be provided below the pressure discharge port (80).

Further, since the trajectory of the counterweight 45 is made larger than the trajectory of the weight 65, that is, the horizontal moment L1 is larger than the horizontal distance L2, the increase of the counterclockwise moment by the counterweight 45 is increased. The weight 65 can be made larger than the increase in the clockwise moment.

Therefore, as the opening angle of the opening and closing plate 20 increases, an increase in the moment due to the counterweight 45 is added in the counterclockwise direction, so that the exhaust air volume can be obtained quickly even at a relatively small wind pressure, and the opening and closing plate is closed. The counterweight of the counterweight decreases inversely, so that the opening and closing plate can be quickly returned to its original shape.

On the other hand, the threshold set pressure at which the opening and closing plate 20 starts to open due to the pressure in the protective zone or the smoke control zone may be set by adjusting the eccentric position of the center of rotation of the opening and closing plate 20, or on the lower side of the opening and closing plate 20. When the pressure adjusting weight 70 is placed, it can be set by adjusting the distance and weight of the weight 65.

Therefore, it is possible to arbitrarily set the operating pressure range, discharge amount, overpressure range, etc. by appropriately combining the eccentric position of the rotation center, the inclination angle of the adjustment bar, the position of the counterweight, and the weight and position of the pressure control weight.

FIG. 3C illustrates another embodiment in which the configuration of the moment adjusting device 30 of the basic embodiment is changed. Since only the changed configuration is the same as the basic embodiment, only the changed configuration will be described.

As shown, the moment adjustment opening 43 of the present invention is coupled to one end of the adjustment bar 41 on the upper side of the center of rotation of the opening and closing plate 20, the other end is provided with a counterweight (42).

At this time, the counterweight 42 is screwed to the adjustment bar 41 to enable position adjustment.

In addition, the opening and closing plate 20 may be formed to form a plurality of holes in which the control bar 41 is coupled in the up and down direction, it is possible to change the engagement position of the moment adjusting port (43).

On the other hand, the configuration of the pressure adjusting weight 70 in the lower side of the opening and closing plate 20 may also be replaced with the same configuration as the moment control opening (43).

Figure 4 is to increase the open area by opening the plurality of opening and closing plates 20, 20 'are rotated at the same time, as shown, the opening and closing plate 20 provided in the outlet 2 of the fixed plate (1) The additional outlet 2 'is further formed in the outlet 2', which is achieved by hinge-bonding the separate opening and closing plate 20 'as described above.

When a pressure greater than the pressure set in the pressure discharge port 80 (shown in Figs. 3a and 3b) of the protective zone or the smoke control zone is applied to the opening and closing plates 20 and 20 ', the opening and closing plates 20 and 20' Opening allows for large volume discharges quickly.

As described above, the above embodiments are merely described as examples for convenience of description and are not intended to limit the scope of the claims.

The pressure of the gas fire extinguishing system protection zone or the smoke control area is opened at the time of up and down operation based on the hinge eccentric to the switchboard to increase the open area in a short time, so that sufficient discharge can be obtained quickly and When opening / closing plate is opened by pressure in the area or ventilation area, control bar and counterweight can be added to the center of rotation in the direction of opening / closing plate to reduce the resistance to wind pressure. By enabling a rapid mass discharge of gas in a short time, it is possible to reduce the necessity of increasing the capacity of the overpressure discharge device and to suppress the occurrence of overload of a fire extinguishing or a smoke removal facility, thereby reducing the installation cost of the facility.

Claims (7)

A fixed plate 1 having an outlet 2 formed therein; A hinge 10 coupled to a position eccentrically upward from the center portion of the fixed plate 1; An opening and closing plate 20 coupled to the hinge 10; And In the discharge device for mass discharge and overpressure prevention of gas, characterized in that it is installed on one side of the opening and closing plate 20, and includes a moment adjusting port (30, 43) that can adjust the moment is added to the rotation center, The hinge 10 has a slide groove 12 in the axial direction at the upper and lower ends of the housing 13 into which one end of the rotation shaft 15 is inserted, and a coupling groove 5 formed at the center of the fixing plate 1. And a mass discharge and overpressure preventing discharge device, characterized in that the slide groove 12 is coupled to). delete According to claim 1, The moment adjusting device 30 is installed in the through groove 22 formed in the center of rotation of the opening and closing plate 20, one end of the adjustment bar 40 on the outer circumferential surface of the housing 31 into which the rotation shaft 34 is inserted. Combined and the other end of the counterweight 45 is screwed to adjust the position, the mass of the gas, characterized in that formed a fixing hole 32 is coupled to the anti-rotation fixture (32a) of the housing 31 Discharge device for discharge and overpressure prevention. The method of claim 1, The moment adjusting port 43 is coupled to one end of the adjustment bar 41 on the upper side of the rotation center of the opening and closing plate 20, the other end is characterized in that the counterweight 42 is screwed to enable position adjustment Discharge device for mass discharge of gas and prevention of overpressure. delete delete According to claim 1, wherein the opening and closing plate 20 One or more auxiliary outlets 2 'formed inside; An auxiliary opening and closing plate 20 'coupled to the auxiliary outlet 2' by an eccentrically hinged upper side; And A large amount of gas discharge and overpressure prevention discharge device, characterized in that the auxiliary moment control opening (30 ') is installed on one side of the auxiliary opening and closing plate (20').

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