CN215461559U

CN215461559U - Combined high-rise outer wall fire extinguishing system

Info

Publication number: CN215461559U
Application number: CN202121777602.XU
Authority: CN
Inventors: 黄天祥; 李庆; 周泽蓉; 黄伟
Original assignee: Chongqing College of Electronic Engineering
Current assignee: Chongqing College of Electronic Engineering
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-01-11
Anticipated expiration: 2031-07-30

Abstract

The utility model relates to the field of high-rise fire prevention, and particularly discloses a combined high-rise outer wall fire extinguishing system. The fire extinguishing unit comprises a water tank, a water storage pipe and a plurality of fire extinguishing pipes, wherein a strip-shaped groove is formed in one side, facing downwards, of each fire extinguishing pipe, a blocking piece is installed on each fire extinguishing pipe, the water storage pipe is used for communicating the fire extinguishing pipes with the water tank, a plurality of blocking units are further arranged, the blocking units are sequentially distributed along the circumferential direction of the building outer wall and comprise connecting pipes and a plurality of blocking pipes, the blocking pipes are respectively located between adjacent floors and are opposite to the opening positions, the blocking pipes are fixed to the building outer wall, water outlets are formed in one sides, deviating from the building outer wall, of the blocking pipes, and blocking pieces for blocking water outlet holes are also arranged on the blocking pipes; the connecting pipe connects the blocking pipe with the water tank. The combined high-rise outer wall fire extinguishing system can simultaneously block flames on the outer wall and in the air close to the outer wall.

Description

Combined high-rise outer wall fire extinguishing system

Technical Field

The utility model relates to the field of high-rise fire prevention, in particular to a combined high-rise outer wall fire extinguishing system.

Background

Because the height of the high-rise building is higher, the life and property safety of people above the position where the fire happens is extremely easy to be seriously threatened once the fire happens. At present, fire hydrants or automatic water spraying fire extinguishing systems are usually installed in a corridor, but the devices can only be used for indoor fire extinguishing, if a fire disaster happens for a long time and is still not extinguished or the burning speed is too high under the action of high-rise wind, flame easily spreads to the previous floor from opening positions such as windows and balconies, the fire condition is rapidly diffused, and the life and property safety of people in the previous floor is greatly harmed.

In order to extinguish fire spreading to the outside of a building, the inventor develops a high-rise outer wall fire extinguishing system with application number of 202011480127X, a water tank is placed on the roof, a plurality of annular fire extinguishing pipes are installed on the outer wall of the high-rise building and are communicated with the water tank, and strip-shaped grooves and blocking pieces are arranged on the fire extinguishing pipes. When the flame spreads to the outer wall of the building, the flame is contacted with the fire extinguishing pipe, the temperature of the flame enables the blocking piece to melt, and water in the water tank is sprayed out from the strip-shaped groove to form a water curtain, so that the fire is extinguished below the water tank.

However, when a fire disaster occurs, the flame spreads upwards, the flame also exists in the air close to the outer wall, if the strip-shaped groove is arranged at one side of the fire extinguishing pipe far away from the outer wall, the water curtain sprayed from the strip-shaped groove has a certain distance with the outer wall, and the effects of cooling the outer wall and preventing the flame from spreading upwards along the outer wall are poor; if set up the bottom at the fire extinguishing pipe or towards the outer wall with the bar groove, the water that sprays from the bar groove though can be better with the outer wall contact, but be difficult to form the water curtain in the sky near the outer wall, to stopping that the effect that flame makes progress the drunkenness is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a combined high-rise outer wall fire extinguishing system which is used for simultaneously blocking flames on an outer wall and in the air close to the outer wall.

In order to achieve the purpose, the utility model adopts the following technical scheme: a combined fire extinguishing system for a high-rise outer wall comprises a fire extinguishing unit, wherein the fire extinguishing unit comprises a water tank, a water storage pipe and a plurality of fire extinguishing pipes, the fire extinguishing pipes are distributed between adjacent floors and are fixed with the outer wall of a building, one sides of the fire extinguishing pipes facing downwards are provided with strip-shaped grooves, blocking pieces which seal the strip-shaped grooves and can be melted by flame are fixed on the fire extinguishing pipes, the water storage pipe communicates the fire extinguishing pipes with the water tank, the fire extinguishing pipes are also provided with a plurality of blocking units, the blocking units are sequentially distributed along the circumferential direction of the outer wall of the building and are opposite to a plurality of opening positions on the outer wall of the building, each blocking unit comprises a connecting pipe and a plurality of blocking pipes, the blocking pipes are respectively located between the adjacent floors and are opposite to the opening positions, the blocking pipes are fixed with the outer wall of the building, one sides of the blocking pipes, which are far away from the outer wall of the building, and are also provided with the blocking pieces which seal water outlet holes; the connecting pipe connects the blocking pipe with the water tank.

The beneficial effect of this scheme does:

1. the separation pipe in this scheme sets up window with on the building outer wall, open position such as balcony is relative, when the conflagration takes place, flame often emits from open position, and the increase along with the intensity of a fire leads to the flame increase of emitting, when flame upwards stretchs along the outer wall, flame still can be to keeping away from one side protrusion of building outer wall, spun hydroenergy can be in the air that is close to the building outer wall formation great water curtain of thickness in the delivery port in this scheme this moment, thereby block convex flame, the improvement is to the effect that blocks of flame. And the great water curtain of thickness can also cool down the air, avoids fire too big, the too much transmission of produced heat to the department of the last floor to lead to inflammables such as the (window) curtain of the last floor to burn, further avoids the conflagration to spread.

2. The orientation of delivery port and bar groove in this scheme is different, the bar groove is located the one side that the fire extinguishing pipe is down, the water curtain that sprays out from the bar groove is unrestrained downwards along building outer wall and the sky that is close to the outer wall, can put out a fire to the flame that upwards stretchs along the wall, the event is different from the position that delivery port and the water curtain that the bar groove flows can cover, the two combines to block the flame in outer wall lateral wall and the air simultaneously, avoid appearing the dead angle position, the improvement is to the effect that blocks of flame.

Furthermore, the connecting pipe comprises a flow guide section and a closed section which are distributed at intervals, the closed section is funnel-shaped, a gravity ball and a fixing piece are arranged in the closed section, the density of the gravity ball is greater than that of water, and the diameter of the gravity ball is greater than that of the lower end of the closed section; the fixing piece is fixed with the inner wall of the connecting pipe, presses the gravity ball on the inner wall of the closed section and enables the closed section to be communicated with the flow guide section below; the fixing position of the fixing plate and the closing section or the fixing plate can be melted by flame.

The beneficial effect of this scheme does: when the stationary blade is fixed to the gravity ball, the gravity ball can not seal the bottom of the closed section, and water can flow into the diversion section below through the closed section. When a fire occurs, the blocking piece on the blocking pipe positioned above the fire occurrence position is melted, the water outlet on the blocking pipe is opened, and water can be sprayed out from the opened water outlet. If the fire is great, the temperature of the blocking pipe below the fire is also high, the blocking piece on the blocking pipe below the fire can be melted, but water flowing out of the water outlet on the blocking pipe below the fire cannot extinguish the fire, namely the water flowing out of the water outlet on the blocking pipe below the fire is wasted. In addition, when the flame has spread two-layerly upwards, because flame has crossed the baffling pipe that is located the position top that takes place for a fire, should spray the water curtain downwards from the position of upper two-layerly this moment and just can avoid flame to continue to spread upwards to the third floor, so the effect of avoiding flame to spread upwards has not been played from the water curtain of blowout in the baffling pipe of position top that takes place for a fire to the effect, also can cause the waste of water this moment, and the capacity of water tank is certain, and the more extravagant water, the shorter the time that the water curtain can last, it blocks flame to be difficult to long-time maintenance water curtain.

The stationary blade in this scheme also can be fused under the high temperature effect of flame, no longer fixes the gravity ball, and the gravity ball rolls to the bottom of closed section under the action of gravity this moment, seals the bottom of closed section, and in the water conservancy diversion section of the unable below that gets into of clear water this moment, the utilization ratio of improvement clear water reduces extravagantly, under the certain circumstances of the water storage capacity of water tank, the time that the extension water curtain can last.

Furthermore, a supporting platform is fixed on the inner wall of the closed section, the gravity ball is positioned on the supporting platform, and the center of the gravity ball is positioned on one side, far away from the closed section, of the supporting platform along the vertical projection.

The beneficial effect of this scheme does: supporting platform can provide the holding power of part to the gravity ball to when the fixed band is fixed the gravity ball, reduce the effort that the fixed band bore, need the less fixed band of thickness or width to fix the gravity ball, and the less fixed band of thickness or width is fused more easily, thereby makes the gravity ball close the closed section fast, reduces the waste of water.

Furthermore, the water tank is communicated with a pump body, and the upper end of the connecting pipe is communicated with the water outlet end of the pump body.

The beneficial effect of this scheme does: under the great condition of intensity of a fire, the outside convex distance of flame that emits from opening positions such as window is bigger, and accessible pump body increase connecting pipe and the intraductal pressure of separation in this scheme make the rivers that flow from the delivery port can follow the wideer distance of horizontal extension, further enlarge the thickness that the water curtain covered, improve the separation effect to flame.

Furthermore, the water outlet is composed of a plurality of channels.

The beneficial effect of this scheme does: compare with only adopting the great delivery port of a bore, the aperture of through-hole is less than the delivery port, and the through-hole can disperse spun rivers this moment, reduces the gap in the water curtain to improve the separation effect to flame.

Furthermore, the plurality of channels are divided into a first channel and a second channel, the first channel is horizontal, and one end, far away from the building outer wall, of the second channel inclines upwards.

The beneficial effect of this scheme does: the movement locus of the water flow sprayed from the second channel is in an upward inclined parabola shape, and the distance of the water flow moving along the transverse direction is smaller and is closer to the outer wall of the building; and the distance of the water flow sprayed out from the first channel along the transverse movement is increased, the water flow can cover the air far away from the outer wall of the building, the thickness of the water curtain can be further increased by combining the two channels, and the flame blocking effect is further improved.

Further, the length of the barrier tube is greater than the length of the opening position.

The beneficial effect of this scheme does: the length of the flame which is emitted from the opening position is usually similar to that of the opening position, the length of the blocking pipe is larger, the length of the formed water curtain is larger, the covering effect on the flame is better, and therefore the blocking effect on the flame is further improved.

Drawings

FIG. 1 is a schematic view showing the installation of a fire extinguishing pipe in example 1 of the present invention;

FIG. 2 is a cross-sectional view of the fire extinguishing tube of FIG. 1 in a radial direction;

FIG. 3 is a schematic view showing the installation of a barrier tube in example 1 of the present invention;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

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

fig. 6 is a partial sectional view of a connection pipe in embodiment 2 of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the water storage pipe 1, the fire extinguishing pipe 2, the plugging piece 3, the connecting pipe 4, the closing section 41, the flow guide section 42, the supporting platform 43, the blocking pipe 5, the gravity ball 6 and the fixing piece 61.

Example 1

The utility model provides a modular high-rise outer wall fire extinguishing system, includes fire extinguishing unit and a plurality of separation unit, as shown in figure 1, fire extinguishing unit includes water tank (not drawn in the picture), standpipe 1 and a plurality of fire extinguishing pipe 2, and the water tank passes through the bolt and installs at the roof of building, and a plurality of fire extinguishing pipe 2 are cyclic annular to distribute in proper order between adjacent floor, and is concrete, and fire extinguishing pipe 2 is fixed on the building outer wall through current pipe fixing spare. The upper end of the water storage pipe 1 penetrates through the water tank and is in threaded connection with the water tank, the lower end of the water storage pipe 1 extends downwards along the height of a building, and is sequentially communicated with the fire extinguishing pipes 2 through the existing pipeline connectors.

The fire extinguishing pipe 2 is provided with a plurality of strip grooves along the length direction, as shown in fig. 2, the strip grooves are located on one side of the fire extinguishing pipe 2 facing downwards, the fire extinguishing pipe 2 is provided with blocking pieces 3 which are one-to-one opposite to the strip grooves, the blocking pieces 3 are connected with the fire extinguishing pipe 2 in a gluing mode, the blocking pieces 3 in the embodiment are made of plastic, and the blocking pieces 3 can be melted at the high temperature of flame, so that the strip grooves are exposed.

The blocking units are distributed along the circumferential direction of the building outer wall and are opposite to the opening positions of the building outer wall, such as windows, balconies and the like. As shown in fig. 3, the blocking unit includes a connecting pipe 4 and a plurality of blocking pipes 5, the blocking pipes 5 are sequentially distributed between adjacent floors, and the blocking pipes 5 and the connecting pipe 4 are both installed on the outer wall of the building through the existing pipe fixing members. The length of separation pipe 5 is greater than the length of open position, be equipped with the delivery port on the separation pipe 5, the delivery port comprises a plurality of passageways that extend along the length direction of separation pipe 5, specifically, the through-hole in this embodiment divide into first passageway and second passageway, combine shown in fig. 4 and 5, first passageway is located the one side that separation pipe 5 deviates from the building outer wall, the second passageway is located the top of first passageway, and the right-hand member tilt up of second passageway, make the rivers that flow out from the second passageway tilt up, compare with the rivers that flow out from first passageway, the water curtain that the rivers that follow the second passageway formed is closer to the building outer wall, the water curtain that the rivers that flow out from first passageway form is farther away from the outer wall, first passageway and second passageway combine, the width of the water curtain that effectively increases formation, increase coverage area, thereby improve the separation effect to flame. A plurality of plugging pieces 3 are also glued on the blocking pipe 5, and the plugging pieces 3 on the blocking pipe 5 seal the first passage and the second plugging.

The left end of separation pipe 5 is sealed, and the right-hand member passes through pipeline interface and connecting pipe 4 intercommunication, and the upper end of connecting pipe 4 runs through the water tank bottom and extends to in the water tank, connecting pipe 4 and water tank threaded connection. In practical implementation, also can pass through a plurality of pump bodys of bolt fastening on the water tank, the pump body in this embodiment adopts the water pump, and the pump body and connecting pipe 4 one-to-one, and the pump body passes through the upper end intercommunication of pipeline and connecting pipe 4.

The specific implementation process is as follows:

when a fire disaster occurs, flame is emitted from the opening positions of a window, a balcony and the like, the fire extinguishing pipe 2 above the fire disaster position and the blocking piece 3 on the blocking pipe 5 are melted under the high-temperature action of the flame, water in the water tank is sprayed from the strip-shaped groove, and the flame along the outer wall of the building and the position close to the outer wall of the building is sprayed, so that the flame is prevented from spreading upwards; when the flame extends to the two sides of the opening position, the blocking pieces 3 on the fire extinguishing pipes 2 on the two sides are also melted, so that the fire extinguishing pipes 2 spray the flame on the two sides.

After the blocking piece 3 on the separation pipe 5 melts, the water in the separation pipe 5 can flow out from the first channel and the second channel to form a downward water curtain, the flame which is emitted from the opening position is sprayed, and the pump body is opened to supplement water in the connecting pipe 4. When the fire is too big and the flame that results in emerging from the opening position is outside protruding, the operating power of the increase pump body can increase the pressure in separation pipe 5 for rivers that flow from first passageway and second passageway can lateral movement longer distance, and the width that further increase water curtain can cover improves the separation effect to flame.

In the routine maintenance process, when ambient temperature crosses lowly, can be to adding antifreeze in water tank, standpipe 1 and the connecting pipe 4, and for the convenience to adding antifreeze in connecting pipe 4, still can pass through the pipeline interface connection filling tube in the upper end of connecting pipe 4 to installation valve on the filling tube, when needing to add antifreeze, open the valve and can add antifreeze in the filling tube, antifreeze gets into in the connecting pipe 4 along the filling tube.

Example 2

On the basis of embodiment 1, as shown in fig. 6, the connecting pipe 4 in this embodiment includes a plurality of flow guide sections 42 and a plurality of closing sections 41, the flow guide sections 42 and the closing sections 41 are distributed at intervals, and adjacent flow guide sections 42 and closing sections 41 are connected by a pipe joint. The diameter of the closed section 41 in this embodiment is greater than the diameter of the flow guide section 42, the inner wall of the bottom of the closed section 41 is funnel-shaped, and a supporting platform 43 is disposed at the bottom of the closed section 41, specifically, the supporting platform 43 in this embodiment is located at the left end of the closed section 41. The closed section 41 is internally provided with a gravity ball 6 and a fixing piece 61, the density of the gravity ball 6 is less than that of water, the gravity ball 6 is arranged on the supporting platform 43, the center of the gravity ball 6 is positioned on the right side of the supporting platform 43 along the vertical projection, and the diameter of the fixing ball is greater than that of the opening at the bottom of the sealing section. The fixing sheet 61 is located on the right side of the gravity ball 6, the fixing sheet 61 in this embodiment is made of EVA plastic, two ends of the fixing sheet 61 are fixed on the front and rear inner walls of the closing section 41 through hot melt adhesive, the fixing sheet 61 presses the gravity ball 6 on the left wall of the closing section 41, and at this time, the closing section 41 is communicated with the flow guide section 42 below.

When a fire disaster happens to the connecting pipe 4 in the embodiment, flame melts the fixing sheet 61 and the hot melt adhesive, at this time, the fixing sheet 61 does not position the gravity ball 6, the gravity ball 6 rolls to the bottom of the sealing section under the action of gravity to seal the sealing section, and at this time, a large amount of water does not enter the flow guide section 42 below. When the fire is great, the flame is spread to the position of the upper floor, the temperature of the flame can melt the fixing sheet 61 in the sealing section opposite to the upper floor, and the water is prevented from continuously flowing out of the blocking pipe 5 below to cause waste.

The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a modular high-rise outer wall fire extinguishing system, includes the unit of putting out a fire, the unit of putting out a fire includes water tank, standpipe and a plurality of fire tube of going out a fire, a plurality of fire tube of going out distribute between adjacent floor and with building outer wall fixed, one side down of fire tube of going out is equipped with the bar groove, be fixed with on the fire tube of going out a fire and seal the bar groove and can be by the fused shutoff piece of flame, the standpipe is with a plurality of fire tubes of going out a fire and water tank intercommunication, its characterized in that: the water outlet device is characterized by also comprising a plurality of blocking units, wherein the blocking units are sequentially distributed along the circumferential direction of the building outer wall and are opposite to a plurality of opening positions on the building outer wall, each blocking unit comprises a connecting pipe and a plurality of blocking pipes, the blocking pipes are respectively positioned between adjacent floors and are opposite to the opening positions, the blocking pipes are fixed with the building outer wall, one side of each blocking pipe, which is far away from the building outer wall, is provided with a water outlet, and each blocking pipe is also provided with a blocking piece for blocking the water outlet hole; the connecting pipe communicates the blocking pipe with the water tank.

2. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 1, wherein: the connecting pipe comprises a flow guide section and a closed section which are distributed at intervals, the closed section is funnel-shaped, a gravity ball and a fixing piece are arranged in the closed section, the density of the gravity ball is greater than that of water, and the diameter of the gravity ball is greater than that of the lower end of the closed section; the fixing piece is fixed with the inner wall of the connecting pipe, and presses the gravity ball on the inner wall of the closed section to enable the closed section to be communicated with the flow guide section below; the fixing position of the fixing plate and the closing section or the fixing plate can be melted by flame.

3. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 2, wherein: the inner wall of the closed section is fixed with a supporting platform, the gravity ball is positioned on the supporting platform, and the center of the gravity ball is positioned on one side, far away from the closed section, of the supporting platform along the vertical projection.

4. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 1, wherein: the water tank is communicated with the pump body, and the upper end of the connecting pipe is communicated with the water outlet end of the pump body.

5. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 4, wherein: the water outlet is composed of a plurality of channels.

6. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 5, wherein: the plurality of channels are divided into a first channel and a second channel, the first channel is horizontal, and one end, far away from the building outer wall, of the second channel inclines upwards.

7. The combined fire extinguishing system for the exterior wall of the high-rise building, according to claim 1, wherein: the length of the baffle tube is greater than the length of the opening position.