KR100498168B1 - multi-way differential pressure valve for smoke-proof system of building - Google Patents

Abstract

The present invention relates to a differential pressure multiple valve for a flame retardant system, and more particularly, to control multiple rooms in a building with a single main body as well as to allow a minute pressure to be sensed without any malfunction, so that smoke in a fire can occur. B) It relates to a differential pressure multiple valve for a flame retardant system that can prevent the gas from spreading or expanding the fire zone.

Such a differential pressure multiple valve includes a main body, a main port located on one side of the main body, one or more subports located in communication with the main port in the main body, and the inside of the main body. Located between the main port and the sub-port includes a blocking means for passing the pressure flowing through the sub-ports to the main port only in one direction,

The blocking means provides a differential pressure multiple valve for a flame retardant system, characterized in that the pressure passes only in one direction while the opening and closing operation by the pressure and the self-inflow from the sub-ports.

Description

Multi-way differential pressure valve for smoke-proof system of building

The present invention relates to a differential pressure multiple valve for a flame retardant system, and more particularly, it is possible to control a plurality of rooms in a building with a single main body, and also to sense fine pressure without any malfunctions in case of a fire. The present invention relates to a differential pressure multiple valve for a flame retardant system that can prevent gas diffusion or expansion of a fire zone.

 In general, a large number of high-rise apartments and buildings cause large casualties are caused by smoke containing toxic gases as a mixture of air during the flow of combustion gas. Although this smoke has a relatively low risk of human injury, rather than a flame and gas immediately after combustion, smoke is the main cause of human injury in the event of a fire. This is because it can be widely spread at high speed.

If smoke spreads in the evacuation area during the fire of a building as described above, evacuation of evacuees is difficult, and it is difficult to extinguish the fire. Therefore, smoke prevention system is installed on each floor of the building to prevent the evacuation of the evacuation area. It prevents inflow.

Briefly describing the general structure of the anti-vibration system in the building, it is connected by a pipe having a constant diameter so that the evacuation area of the building and the room communicate with each other, and the differential pressure valve and the pressure sensor are connected to the pipe. Each sensor is installed to sense the pressure difference between the evacuation area and the room. The sensor is connected to a blower for forcing air from the outside of the building into the evacuation area. By supplying air to the evacuation zone by the blower as much as the pressure to maintain a constant pressure difference at all times to prevent the smoke from spreading into the evacuation zone.

And, the pressure difference between the evacuation zone and the room is set to be maintained in the range of approximately 50 Pa, although there is a difference depending on the flame-retardant conditions required in the building. That is, since the atmospheric pressure of the evacuation zone is set higher than the atmospheric pressure of the room within the range of 50 Pa, the indoor smoke cannot be diffused into the evacuation zone.

 The differential pressure valve applied to the above-described flame retardant system plays an important role in maintaining the pressure difference between the evacuation area and the room in case of fire by passing the pressure as it passes in one direction as it is sensed by the pressure sensor. do.

Briefly describing the general structure of the differential pressure valve, for example, "main" or "T" in which one main port and one or two sub-ports communicate with each other, It is made of a magnetic structure, there is provided a blocking member for blocking the passage of the subports and the main port therein, the blocking member is applied to the pressure acting as a passage of the subport between the main port and the subports As a result, the valve moves in the direction in which the pressure acts, blocking the adjacent subport passages and passing pressure only to the main port. As the blocking member, a diaphragm having a thin plate structure called a diaphragm is mainly used.

In addition, when the above-described differential pressure valve is installed, since only one or two subports are formed in one main port due to its structure, a single valve can control only an evacuation zone and one or two rooms in each floor of the building. In a large building equipped with the interior of the plurality of valves are installed to correspond to this to form a smoke-resistant system.

However, in the above-described conventional differential pressure valve for a flame retardant system, since only one or two subports corresponding to one main port are formed in the structure of a single main body, multiple control is impossible, so that satisfactory control efficiency is expected. Difficult, when installed in a large building provided with a large number of indoors, because a plurality of must be installed, there is a problem that not only the flame retardant structure is complicated, but also excessive installation cost.

In addition, the conventional differential pressure valve for a flame retardant system has a blocking member installed between the main port and the sub ports made of a thin diaphragm structure, and the blocking member is opened and closed while interlocking with each other corresponding to the two sub ports. Not only is it difficult to obtain a sufficient control accuracy, but also due to its structure, friction and resistance are generated during the opening and closing operation, so that limitations are imposed on the control of the micropressure, so that satisfactory control efficiency and control accuracy cannot be obtained. In this way, if the pressure is not controlled, the smoke prevention system may not operate properly at the beginning of the fire, which makes it difficult to extinguish the fire early and may cause a large fire.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to be able to easily multiple control a plurality of rooms with a single body as well as by controlling the fine pressure without any malfunction. To provide a differential pressure multiple valve for a flame retardant system with improved control efficiency and control reliability.

In order to realize the object of the present invention as described above, a main port, a main port located on one side of the main body, and one or more subports located in communication with the main port in the main body. And a blocking means positioned between the main port and the subports in the main body to allow the pressure flowing through the subports to pass only in one direction to the main port. Provide a valve.

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

1 and 2, the differential pressure multiple valve for a flame retardant system according to the present invention includes a main body 2, a main port 4 located on one side of the main body 2, and the main body 2 described above. ) Subports 6, one or more of which are located in communication with the main port 4, and the main port 4 and the subports 6 in the main body 2, respectively. Located between the blocking means for passing the pressure flowing through the sub-ports (6) in only one direction to the main port (4).

The main body 2 may be formed in a circular or rectangular box shape, and one or more through holes 8 are formed in the inside corresponding to the subports 6, and in the accompanying drawings, a rectangular shape is formed. It is shown by way of example that the four through holes 8 are formed in a phase and the pressure is passed to the one main port 4 described above.

The material of the main body 2 may be a metal or synthetic resin material having excellent heat resistance as well as durability, and may be manufactured by a well-known surface processing or molding method.

  A cover 10 may be installed at one side of the main body 2 to easily open and close the inside as shown in the drawing. The cover 10 may have a predetermined thickness and may be formed in a plate shape corresponding to the main body 2, and should be sized to sufficiently cover one side of the main body 2.

When the cover 10 is installed to easily open and close the inside of the main body 2 as described above, as well as maintenance and fabrication and assembly of the valve can be further facilitated.

The material of the cover 10 may be made of the same material as the main body 2, and may be firmly fixed to one side of the main body 2 with a fastening member such as a bolt as shown in the drawing.

Then, a seal member G such as a rubber ring may be inserted between the main body 2 and the cover 10 so that the inside of the main body 2 may be sealed from the outside after they are combined. have. As such, when the sealing member G is installed, the pressure passing through the subports 6 to the main port 4 can be prevented from leaking between the contact surface of the main body 2 and the cover 10. When the separate cover 10 is installed in the main body 2 as described above, it must be made of a structure that can be sealed inside the main body (2).

In the above description, the rubber ring is installed as the sealing member G as an example, but is not limited thereto. In addition, the sealing material of the well-known form may be applied, although not shown in the drawings.

The main port 4 may be disposed at a position at which pressure can be smoothly passed corresponding to the through holes 6 of the main body 2 at one side of the main body 2. In the example, the structure formed on the cover 10 side of the main body 2 and fitted with a connection member such as a socket or a nipple is shown as an example.

In the above, the main port 4 is formed on the cover 10 side of the main body 2 as an example, but is not limited thereto. In addition, the position of the main port 4 satisfying the purpose of the present invention may be variously applied. Can be.

One or more of the subports 6 may be formed in the main body 2 in correspondence with the main port 4. As an example, a structure in which four sub ports 6a, 6b, 6c, and 6d are formed in one pair corresponding to the two through holes 8 and a connection member such as a socket or a nipple is fitted in the same way as the main port 4 described above is one example. It is shown.

The four subports 6a, 6b, 6c, and 6d formed on the main body 2 with the above-described structure are located in a direction substantially orthogonal to the main port 4 and are lower than the main port 4 above. It should be set to be located at. If the subports 6a, 6b, 6c, and 6d are located above the main port 4, the pressure control by the blocking means described later may not be performed smoothly.

On the other hand, the main body 2 is provided with a blocking means for controlling the pressure passing between the through-hole (8) connecting the main port (2) and the sub-port (6) in communication, the structure of the blocking means When described in more detail with reference to the accompanying drawings as follows.

2, 3, and 4, the blocking means may be operated independently by the pressure introduced through the subports 6 from the main body 2, respectively, and open the through hole 8 to open the pressure. Pass the pressure to the subports 6 in one direction, that is, the main port 4 side by opening / closing operation to block the through hole 8 again while returning to the original position by the weight when the pressure is removed. Made of pressure plates 12.

The pressure plates 12 are formed in the form of a thin film of a size sufficient to cover the through holes 8 so as to correspond to the through holes 8 of the sub ports 6a, 6b, 6c, and 6d, respectively. In the accompanying drawings, four guide grooves 14 having a diameter larger than these are dug at the top of the through holes 8 corresponding to the four subports 6a, 6b, 6c, and 6d. As an example, four pressure plates 12 are fitted to each of the four members 14 so that four are installed in a set.

The material of the pressure plate 12 may be a synthetic resin or metal material that is light in weight and does not deform even when processed in the form of a thin film.

The weight of the pressure plate 12 is to pass to the main port 4 by opening the through-hole 8, the pressure is applied to the upper side by the pressure, even if a minute pressure is applied, even at a pressure of about 5Pa It must be made to work. If the weight of the pressure plate 12 is too heavy, it may not operate smoothly even when a minute pressure is applied, and even if too thin, it is difficult to process and may be easily deformed or damaged even at a minute pressure, so that the flame retardant condition required in a building According to the pressure is made within the range that can be easily controlled.

The guide grooves 14 have a size range in which a flat sheet portion 16 can be formed to accommodate the through holes 8 of the body 2 so that the pressure plates 12 can be smoothly seated. The pressure generated through the subports (6a, 6b, 6c, 6d) between the guide grooves 14 is smoothly provided to the main port 4 between the guide grooves 14. Guide grooves 18 are formed with a constant width so as to be guided.

When the guide grooves 14 are dug into the main body 2, the pressure plate 12 should be smoothly floated in a range capable of opening the passage. If the depth of the guide groove 14 is too shallow, it restricts the opening operation of the pressure plate 12 so that the pressure cannot pass smoothly, and if the depth of the guide groove 14 is too deep, When one of the pressure plates 12 is lifted upward by the pressure, the inverted or horizontal posture is disturbed, so that the gap between the pressure plates 12 and the through holes 8 in the seat portion 16 when returned to the original position. May occur and the blocking force may be lowered.

In addition, the surface of the pressure plate 12 and the surface of the sheet portion 16 are precisely surface processed at the time of processing such that the gap is not generated in the state in which they are in contact with each other and the optimum state is maintained so that the sealing force is maintained. It must be done. If the surfaces are roughened, the pressure in the evacuation zone acting on the main port 4 can be reversed.

The induction grooves 18 of the main body 2 may be provided with a solid desiccant 20 as shown in FIG. 2, and when the desiccant 20 is installed, as well as the inside of the main body 2, the sub Since external moisture introduced through the port 6 or the main port 4 can be easily removed, moisture or moisture can seep between the pressure plates 12 and the seat portion 16, and thus, by the viscosity thereof. When the pressure plate 12 is in close contact with the seat portion 16 and a minute pressure is applied, it is possible to prevent the pressure plate 12 from lowering the opening operation of the pressure plate 12.

In addition, when installing the desiccant 20 inside the main body 2 as described above, the flow of pressure from the subports 6 to the main port 4 is smoothly flowed without generating resistance. It should be installed so as not to protrude out of the surface as shown.

In the above description that the desiccant 20 is inserted into the surface of the guide groove 18 inside the main body 2 as an example in the description and drawings, but is not limited thereto. In addition, although not shown in the drawings, the main port 4 or the sub port 6 or the pipes connected to the ports 4 and 6 may be installed inside.

Next, with reference to the accompanying drawings, preferred embodiments of the differential pressure multiple valve for a smoke prevention system according to the present invention having the above structure will be described in more detail.

First, FIG. 5 is a schematic view showing an example of a smoke prevention system according to the present invention, in which reference numeral M denotes an evacuation zone and R1, R2, R3, and R4 refer to respective rooms.

The main port 4 is connected to the evacuation zone (M) and the connecting pipe (P1), such as a pipe, the subports (6a, 6b, 6c, 6d) are the room (R1, R2, R3 and R4 may be connected to the connection pipe P2, respectively, and the connection pipe P1 connecting the evacuation zone M and the main port 4 is passed through the main port 4 above. An example is shown in which a pressure sensor 22 for sensing pressure is provided.

The pressure sensor 22 may be a pressure sensor of a type well known in the smoke-proof system of the building, in addition to the sensor that satisfies the object of the present invention can be used in various ways.

In addition, the pressure sensor 22 is electrically connected to the blower 24 installed in the evacuation area (M) as shown in the accompanying drawings, when the pressure passing through the main port (4) is sensed blower (24) is set to force external air into the evacuation zone (M).

At this time, the pressure sensor 22 operates the blower 24 so that the pressure of the evacuation zone (M) can be increased by the sensed pressure, and the evacuation zone (M) and The difference in atmospheric pressure of the rooms R1, R2, R3, and R4 may be set such that the pressure difference is maintained within a range of approximately 40 Pa to 60 Pa although it varies depending on the flame retardation conditions required for the building.

In the above-described flame retardant system, the differential pressure multi-valve according to the present invention has a pressure rising through the corresponding subport 6a when a fire occurs in the room R1 and the pressure in the room rises as shown in the figure. Inflow and blocking means, that is, the pressure plate 12 is operated as follows to pass the pressure to the main port (4) side.

The pressure plate 12 rises upward by the pressure flowing from the room R1 where the fire is generated, and opens the through hole 8 to pass the pressure so that the pressure passed by the pressure sensor 22 is sensed. When the pressure is dissipated in the subport 6a, the subport 6a is moved downward by its own weight to block the open through hole 8 again.

At this time, since the pressure plate 12 is opened and closed independently in response to the sub-ports 6a, 6b, 6c, and 6d, the fire is generated as described above, and the pressure plate 12 corresponding to the pressure plate 12 is opened. When passing the pressure, the pressure plate 12 of the other room where no fire is generated is brought into close contact with the seat portion 16, so that the pressure passed through the other subports 6b, 6c, 6d is lost. Since only the main port 4 is blocked and passed, the elevated pressure can be sensed by the pressure sensor 22 without any error.

When the pressure introduced along the main port 4 is sensed by the pressure sensor 22 as described above, the pressure sensor 22 operates the blower 24 to forcibly evacuate the outside air. By supplying into the zone M, the atmospheric pressure of the evacuation zone is raised by the set differential pressure range than the atmospheric pressure of the room R1 where the fire has occurred, thereby preventing smoke from entering the evacuation zone M during the fire. . If the pressure difference set between the evacuation zone (M) and the rooms (R1, R2, R3, R4) as described above is not maintained, the smoke is evacuated during the fire of the rooms (R1, R2, R3, R4). M) easily spreads into the building, causing difficulties in evacuation and extinguishing fires, causing large-scale human and property damage.

As described above, the differential pressure multi-valve valve for a flame retardant system according to the present invention is not only at the time of fire by the pressure control action as described above, but also at normal pressure in the evacuation zone M of the building and the room R1, R2, R3, R4. It is possible to minimize the damage caused by fire by keeping the difference within the set range at all times.

In the above, a preferred embodiment of the differential pressure multiple valve for a flame retardant system according to the present invention has been described, but the present invention is not limited thereto, and various modifications are made within the scope of the claims and the detailed description of the invention and the accompanying drawings. It is possible to implement, and this also belongs to the scope of the present invention.

As described above, the differential pressure multi-valve valve for a flame retardant system according to the present invention has a pressure plate of the blocking means for controlling the sensed pressure in the form of a thin film, and in the vertical direction by the pressure flowing through the subport and its own weight. It is made of a structure that controls the pressure while opening or closing, so that the control is performed in only one direction without physical friction or vibration during the opening and closing operation, thereby obtaining optimum pressure control efficiency without any malfunction. In addition, since the pressure plates are independently opened and closed corresponding to the respective subports, the control precision can be greatly improved by preventing the pressure from being lost through the other subports.

In addition, the differential pressure multi-valve valve for a flame retardant system according to the present invention has a single main port and a plurality of subports connected to a single main body, thereby enabling multiple control with one valve, thereby greatly improving control efficiency. In addition, such a multi-control structure can significantly reduce the cost and time required when installing the building's flame retardant system.

1 is an overall combined perspective view of a differential pressure multiple valve for a smoke prevention system according to the present invention.

Figure 2 is an overall exploded perspective view of the differential pressure multiple valve for a smoke prevention system according to the invention.

Figure 3 is a cross-sectional view for explaining the internal structure of the differential pressure multiple valve for a smoke prevention system according to the present invention.

Figure 4 is an enlarged cross-sectional view of the main part of FIG.

Figure 5 is a schematic configuration diagram showing an example of a smoke prevention system of a preferred building using a differential pressure multiple valve for a smoke prevention system according to the present invention.

Claims (5)

The main body, a main port located on one side of the main body, one or more subports located in communication with the main port in the main body, and the main port and sub inside the main body. Located between the ports includes a blocking means for transmitting the pressure flowing through the sub-port only in one direction to the main port, The blocking means is a differential pressure multi-valve valve for a flame-retardant system is composed of a thin film pressure plate for passing the pressure while respectively opening and closing independently and corresponding to the passage of the sub-ports. The method of claim 1, wherein the main body is formed with guide grooves corresponding to the passage of the sub-ports so that the pressure plate of the blocking means can be opened and closed while being guided in the vertical direction, the sub-port between the guide grooves A differential pressure multiple valve for a smoke prevention system in which induction grooves are formed to direct pressure passing from the pressure plates through the pressure plates to the main port. The differential pressure multiple valve according to claim 2, wherein the guide grooves are dug into a length range shorter than a diameter length of the pressure plates in the main body. The differential pressure multiple valve for a flame retardant system according to claim 1, wherein the main body is provided with a cover to openably seal the inside of the main body, and a seal material or a rubber ring is provided between the cover and the main body. The differential pressure multiple valve according to claim 1, wherein a solid desiccant for removing moisture is provided inside the main body, and the desiccant does not protrude on a surface of a passage through which pressure passes.