CN210217035U - Annular pipe network system applied to building fire protection and smoke exhaust - Google Patents
Annular pipe network system applied to building fire protection and smoke exhaust Download PDFInfo
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- CN210217035U CN210217035U CN201920857096.1U CN201920857096U CN210217035U CN 210217035 U CN210217035 U CN 210217035U CN 201920857096 U CN201920857096 U CN 201920857096U CN 210217035 U CN210217035 U CN 210217035U
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Abstract
The utility model discloses an annular pipe network system applied to fire-fighting and smoke-discharging of buildings, which comprises a plurality of transverse smoke-discharging subsystems, a vertical smoke-discharging subsystem and at least two smoke-discharging fans; the transverse smoke exhaust subsystem comprises an annular main smoke exhaust pipe and a plurality of branch smoke exhaust pipes communicated with the annular main smoke exhaust pipe, and is provided with a plurality of smoke inlets communicated with the indoor space and at least two smoke exhaust wells communicated with the outdoor space; the vertical smoke exhaust subsystem comprises at least two vertical smoke exhaust pipes, the vertical smoke exhaust pipes are connected with the smoke exhaust well, the top of each vertical smoke exhaust pipe is provided with a smoke exhaust port communicated with the outside, and the smoke exhaust fan is arranged in the smoke exhaust port; the utility model discloses an annular pipe network is discharged fume for two tunnel to be equipped with communicating pipe, not only improve the fail safe nature of system of discharging fume, the branch road pipe of still being convenient for smoke protection subregion access and the discharge condition of plugging into can flow to two directions when discharging fume, make the cross-sectional area of the pipe of discharging fume halve, made things convenient for the pipe arrangement.
Description
Technical Field
The utility model relates to a fire control field, concretely relates to be applied to cyclic annular pipe network system that building fire control was discharged fume.
Background
The poisonous high-temperature smoke generated in the fire disaster process seriously influences the safe evacuation of people in the building and the fire fighting and rescue of firefighters. After the fire disaster happens, people in the building are evacuated to the front room and the staircase through the corridor. In order to ensure that the stairwell of the vertical evacuation passageway is not invaded by fire smoke, the fire smoke entering the corridor from the firing room is effectively eliminated.
The design of the building smoke exhaust system is to combine the factors of the characteristics of the building, the development rule of fire smoke and the like, and adopt effective technical measures to realize safety, reliability, advanced technology, economy and reasonability. According to the technical standard of building smoke prevention and exhaust system GB51251-2017, the maximum smoke exhaust amount of each smoke prevention partition of a high and large warehouse even reaches 38.5 ten thousand m3And h, the smoke discharge amount of the building is very large, the section of the corresponding smoke discharge main pipe is also very large, and the huge smoke discharge amount brings new challenges to the pipeline arrangement.
In the prior art, although the fume extractor with a similar annular pipe network structure exists, certain defects still exist. For example, in the invention of CN105201256B underground stereo garage ventilation and smoke exhaust device, each layer of underground parking layer is surrounded by an annular exhaust duct, the annular exhaust duct is provided with parking space exhaust ports corresponding to the parking spaces under each region, the annular exhaust ducts of a plurality of layers of underground parking layers are communicated through the underground garage vertical exhaust duct and are communicated with the ground parking room exhaust duct arranged in the ground parking room, the top of the ground parking room is provided with a top exhaust duct connected with the ground parking room exhaust duct, and the top exhaust duct is provided with a roof exhaust fan. The problem that the air quality in the underground three-dimensional parking garage can not meet the sanitary requirement can be solved through the suction effect of the ventilation and air exhaust opening under normal operating conditions, and the operation efficiency of electrical equipment in the garage can be improved through ventilation and heat exhaust. The accident condition is used for smoke discharge in fire or after disaster, although the smoke can be rapidly discharged, due to the structural limitation, the annular smoke discharge pipe can only discharge the smoke on the periphery of the building, and the middle position can not effectively discharge the smoke.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide a be applied to cyclic annular pipe network that building fire control was discharged fume, it is including discharging fume pipe and fan, and this be applied to cyclic annular pipe network that building fire control was discharged fume has safe and reliable, the convenient advantage of pipe layout.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
a circular pipe network system applied to fire protection and smoke exhaust of a building comprises a transverse smoke exhaust subsystem and at least two smoke exhaust fans; the transverse smoke exhaust subsystem is provided with a plurality of smoke inlets communicated with the indoor space and at least two smoke exhaust wells communicated with the outdoor space; the transverse smoke exhaust subsystem comprises an annular main smoke exhaust pipe and a plurality of branch smoke exhaust pipes communicated with the annular main smoke exhaust pipe, the smoke inlet is formed in the annular main smoke exhaust pipe or/and the branch smoke exhaust pipes, and the smoke exhaust fan is communicated with the smoke exhaust well respectively.
Preferably, the annular pipe network system further comprises a vertical smoke exhaust subsystem and a plurality of transverse smoke exhaust subsystems, the vertical smoke exhaust subsystem comprises at least two vertical smoke exhaust pipes, the at least two vertical smoke exhaust pipes are respectively connected with the at least two smoke exhaust wells of each transverse smoke exhaust subsystem, the tops of the at least two vertical smoke exhaust pipes are respectively provided with a smoke exhaust port communicated with the outside, the at least two smoke exhaust fans are respectively arranged in the smoke exhaust ports, through the arrangement, the vertical smoke exhaust pipes can collect smoke of the transverse smoke exhaust subsystems in a plurality of layers, the smoke can vertically rise in a natural state due to the fact that the smoke density of the smoke with higher temperature is higher than that of air, the speed of the smoke rising is accelerated under the action of the smoke exhaust fans, the smoke exhaust effect is improved, and the at least two smoke exhaust fans are arranged, even if one of the smoke exhaust fans is damaged or overhauled, the other smoke exhaust fan can still bear more than half of the smoke exhaust amount of the system.
Preferably, the smoke exhaust port is located above all the transverse smoke exhaust subsystems, and through the arrangement, the smoke exhaust effect is better, if the smoke exhaust port is located below some transverse smoke exhaust subsystems, smoke exhausted by the transverse smoke exhaust subsystems located above the smoke exhaust port is sucked downwards, although the smoke exhaust effect can be achieved, the situation that the natural state of the smoke is lifted upwards needs to be overcome, and the smoke exhaust effect is poorer.
Preferably, the smoke inlet comprises a normally open shutter and a smoke inlet.
Preferably, still be provided with electronic normally closed valve in advancing the mouth, through setting up like this, electronic normally closed valve respectively with normally open tripe and advance the cigarette wind gap and constitute electronic normally closed tripe mouth and electronic normally closed and advance the cigarette wind gap, when guaranteeing to take place the conflagration, only need open the normally closed motorised valve that corresponds and discharge fume.
Preferably, the electric normally-closed valve and the smoke exhaust fan are controlled in an interlocking manner, and thus the smoke exhaust work of the annular pipe network system can be controlled conveniently.
Preferably, an impedance composite muffler is arranged in the smoke exhaust port.
Preferably, the smoke exhaust fan is externally provided with smoke exhaust rainproof shutters, and through the arrangement, under the condition that each smoke exhaust pipe is normally communicated with the outside, rainwater is prevented from entering the smoke exhaust pipe to form accumulated water when raining, and even the smoke exhaust pipe is prevented from rusting.
Compared with the prior art, the utility model discloses profitable technological effect has been obtained:
1. because the annular main smoke exhaust pipe of the transverse smoke exhaust subsystem discharges smoke in two ways and is provided with a plurality of branch smoke exhaust pipes communicated with the annular main smoke exhaust pipe, the other way can smoothly discharge smoke even if one way is blocked, and the safety and reliability of the annular pipe network system are improved.
2. Because the vertical smoke exhaust subsystem comprises at least two vertical smoke exhaust pipes, the tops of the at least two vertical smoke exhaust pipes are respectively provided with a smoke exhaust port communicated with the outside, the smoke exhaust fans are respectively connected with the smoke exhaust ports, when one of the smoke exhaust fans is damaged or overhauled, the other smoke exhaust fan can still bear more than half of the smoke exhaust amount of the system, and the safety and the reliability of the annular pipe network system are improved.
3. Because the annular main smoke exhaust pipe of the transverse smoke exhaust subsystem discharges smoke in two ways, and the vertical smoke exhaust subsystem comprises at least two vertical smoke exhaust pipes, compared with a single smoke exhaust pipe in the prior art, the cross sectional area of the smoke exhaust pipe of the annular pipe network system is reduced by half compared with that of the single smoke exhaust pipe, and the arrangement of pipelines is greatly facilitated.
4. Because the transverse smoke exhaust subsystem adopts the annular main smoke exhaust pipe, each smoke-proof partition in the building is conveniently connected with the branch smoke exhaust pipe, and the connection and exhaust conditions are also conveniently set.
Drawings
FIG. 1 is a schematic diagram of the conversion of a one-way pipe network to a transverse loop pipe network smoke exhaust system;
fig. 2 is a schematic plan view of an annular pipe network system applied to a factory building with a large space according to an embodiment of the present invention;
fig. 3 is a schematic plan view of a circular pipe network system applied to a tower building according to an embodiment of the present invention;
fig. 4 is a vertical schematic view of an annular pipe network system applied to a tower building according to an embodiment of the present invention;
FIG. 5 is a schematic view of the top structure of the vertical smoke exhaust pipe according to the embodiment of the present invention;
wherein, the technical characteristics that each reference numeral refers to are as follows:
1. an annular main smoke exhaust pipe; 2. a normally open shutter; 3. a smoke inlet; 4. a branch smoke exhaust pipe; 5. an electric normally-closed valve; 6. a smoke discharge well; 7. an electric normally closed louver opening; 8. a smoke exhaust fan; 9. a vertical smoke exhaust pipe; 10. a transverse smoke exhaust subsystem; 11. smoke discharging rainproof shutter; 12. an impedance composite muffler;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Referring to fig. 1, the conversion process from a single-pass pipe network to a transverse loop pipe network system is shown.
The left diagram is a one-way pipe network system. According to the setting principle of the smoke-proof subareas of the building, a plurality of smoke-proof subareas are arranged in the building. When fire hazard occurs in a plurality of smoke-proof subareas, the electric normally-closed valves of the smoke-proof subareas needing smoke discharge and the smoke-discharge fan are opened simultaneously, so that the indoor part and the outdoor part are in a communicated state, certain negative pressure is formed in the single-path pipe network system under the action of the operation and the air suction of the smoke-discharge fan, smoke of each smoke-proof subarea is sucked into the branch smoke-discharge pipes from smoke inlets of the branch smoke-discharge pipes, the smoke of each branch smoke-discharge pipe is collected towards the single-path main smoke-discharge pipe and is finally discharged from air outlets of the single-path main smoke-discharge pipe, and the smoke of each smoke-proof subarea can only be collected towards the single-path smoke-discharge pipe.
The middle part is a double-path pipe network system. According to the setting principle of the smoke-proof subareas of the building, a plurality of smoke-proof subareas are arranged in the building. When fire disaster occurs in a plurality of smoke-proof subareas, the electric normally-closed valves and the smoke-discharging fans of the smoke-proof subareas needing smoke discharging are opened simultaneously, so that the indoor part and the outdoor part are in a communicated state, under the action of the operation and the air draft of the smoke exhaust fan, certain negative pressure is formed in the dual-path pipe network system, the smoke of each smoke-proof subarea is sucked into the branch smoke exhaust pipes from the smoke inlet of each branch smoke exhaust pipe, the smoke of each branch smoke exhaust pipe is collected towards the corresponding dual-path main smoke exhaust pipe and is finally exhausted from the air outlets of the dual-path main smoke exhaust pipes, although the dual-path pipe network system is provided with the dual-path main smoke exhaust pipe which can jointly act on indoor smoke exhaust of the building, but the smoke can only flow in one direction, according to the requirement of huge smoke discharge quantity of the building smoke-proof subareas, the requirement on the smoke discharge pipe of the dual-path pipe network system is high, so that the cross-sectional area of the smoke discharge pipe of the dual-path pipe network system is also large.
The right figure is a circular pipe network system. According to the setting principle of the smoke-proof subareas of the building, a plurality of smoke-proof subareas are arranged in the building. When fire hazard occurs in a plurality of smoke-proof subareas, the electric normally-closed valves of the smoke-proof subareas needing smoke discharge and the smoke-discharge fan are opened simultaneously, so that the indoor part and the outdoor part are in a communicated state, a certain negative pressure is formed in the annular pipe network system under the action of the operation and the air suction of the smoke-discharge fan, smoke of each smoke-proof subarea is sucked into the branch smoke-discharge pipes from the smoke inlet of the branch smoke-discharge pipe, when the smoke of each branch smoke-discharge pipe enters the annular main smoke-discharge pipe, the smoke can flow in two directions at the branch smoke-discharge pipe, finally flows through the annular main smoke-discharge pipe and is discharged from the smoke outlet of the annular main smoke-discharge pipe, when the smoke of the branch smoke-discharge pipe flows to the annular main smoke-discharge pipe, the smoke can flow in two directions, namely, the smoke flow is shared, so that the cross-sectional area of the smoke-discharge, the arrangement of the smoke exhaust pipe is convenient.
Example 1:
referring to fig. 2 and 5, the embodiment discloses an annular pipe network system applied to a factory building with a large space, which includes a single transverse smoke exhaust subsystem 10, a vertical smoke exhaust subsystem and two smoke exhaust fans 8; the single transverse smoke exhaust subsystem 10 is arranged at the upper part of a high and large space factory building; according to the setting principle of a building smoke-proof subarea, a plurality of smoke-proof subareas are arranged in the building, a plurality of smoke inlets which are in one-to-one correspondence with the smoke-proof subareas and are communicated with the indoor are arranged on the transverse smoke exhaust subsystem, and each smoke inlet comprises a normally open shutter 2 and a plurality of smoke inlets 3; an electric normally-closed valve 5 is arranged in each smoke inlet, the electric normally-closed valves 5 respectively form an electric normally-closed louver opening and an electric normally-closed smoke inlet with the normally-open louver 2 and the smoke inlet 3, and when fire occurs in a plurality of smoke-proof subareas, only the normally-closed electric valves 5 of the smoke-proof subareas need to be opened to discharge smoke; the transverse smoke exhaust subsystem 10 comprises a rectangular annular main smoke exhaust pipe 1 and two branch smoke exhaust pipes 4 which are connected with the left and right opposite smoke exhaust pipes of the annular main smoke exhaust pipe 1, finally the transverse smoke exhaust subsystem 10 is in a shape like a Chinese character 'mu', and the smoke exhaust pipes of the transverse smoke exhaust subsystem 10 are connected through flanges, so that the good sealing performance of the transverse smoke exhaust subsystem 10 is ensured, and the connectivity of the transverse smoke exhaust subsystem 10 can be kept; through the arrangement of the annular main smoke exhaust pipe 1 and the branch smoke exhaust pipe 4, smoke can flow in two directions after entering the transverse smoke exhaust subsystem 10, so that the cross section area of the smoke exhaust pipe of the transverse smoke exhaust subsystem is reduced by half compared with that of the smoke exhaust pipe of the single-path pipe network system, and the safety reliability and the convenience of pipe connection of the annular pipe network system are improved; two smoke discharging wells 6 communicated with the outside are arranged on the outer side of the annular main smoke discharging pipe 1 of the transverse smoke discharging subsystem 10; the vertical smoke exhaust subsystem comprises two vertical smoke exhaust pipes 9, the two vertical smoke exhaust pipes 9 are respectively communicated with the transverse smoke exhaust subsystem 10 through two smoke exhaust wells 6, so that the communication between the vertical smoke exhaust pipes 9 and the transverse smoke exhaust subsystem 10 is ensured, and smoke gas at higher temperature rises vertically in a natural state due to the fact that the smoke gas density is higher than that of air, and the smoke gas is favorable for vertically rising and discharging the smoke gas after entering the vertical smoke exhaust pipes 9 from the transverse smoke exhaust subsystem 10 through the smoke exhaust wells 6; the top of the vertical smoke exhaust pipe 9 is arranged on the outer side of the top of the high and large space factory building, a smoke exhaust port communicated with the outside is arranged at the top of the vertical smoke exhaust pipe 9, the two smoke exhaust fans 8 are respectively arranged in the smoke exhaust port, and the two smoke exhaust fans 8 and the electric normally-closed valve 5 are in interlocking control, namely when the electric normally-closed valve 5 is opened, the smoke exhaust fans 8 are also simultaneously started; when the electric normally-closed valve 5 is closed, the smoke exhaust fan 8 also stops running at the same time, so that the smoke exhaust work of the annular pipe network system can be conveniently controlled; under the action of the operation of the smoke exhaust fan, certain negative pressure is formed in the annular pipe network system, so that the emission of smoke can be accelerated; when one smoke exhaust fan is damaged or overhauled, the other smoke exhaust fan can bear more than one system smoke exhaust amount; the smoke exhaust rainproof louver 11 is arranged outside the smoke exhaust fan 8, so that the situation that the smoke exhaust pipe is normally communicated with the outside can be guaranteed, and the situation that rainwater enters the smoke exhaust pipe to cause water accumulation and even cause the smoke exhaust pipe to rust in rainy days is prevented; an impedance composite muffler 12 is arranged in the smoke exhaust port, and the noise of ventilation is reduced when ventilation is taken into consideration.
The utility model discloses use of embodiment:
when the building is in a normal safety condition, the electric normally-closed valve 5 is in a closed state, namely, the indoor and outdoor are not communicated, and the smoke exhaust fan 8 is also in a state of stopping working, namely, the annular pipe network system is in an inoperative state. When fire occurs in a plurality of smoke-proof subareas of a building, the electric normally-closed valves 5 positioned in the smoke-proof subareas can be manually started on site or automatically opened by a fire automatic alarm system or manually started by a fire control room, because the electric normally-closed valves 5 and the smoke exhaust fans 8 are controlled in an interlocking manner, after the electric normally-closed valves 5 are opened, the indoor part and the outdoor part are in a communicated state, and the smoke exhaust fans 8 start to operate at the moment, a certain negative pressure is formed in the annular pipe network system, so that fire smoke in the building is sucked into the branch smoke exhaust pipes 4 of the transverse smoke exhaust subsystem 10 from the normally-open shutters 2 and the smoke inlet 3, can flow in two directions after entering the branch smoke exhaust pipes 4, finally flows to the smoke exhaust well 6 of the annular main smoke exhaust pipe 1, flows to the vertical smoke exhaust pipe 9 from the smoke exhaust well 6, and under the action of vertical rising in a natural state and the action of, rises to the top of the vertical smoke exhaust pipe 9 and is exhausted from the smoke exhaust.
Example 2:
referring to fig. 3 to 5, the present embodiment discloses an annular pipe network system applied to a tower building, which includes a plurality of horizontal smoke exhaust subsystems 10, a vertical smoke exhaust subsystem and at least two smoke exhaust fans 8. Each transverse smoke exhaust subsystem 10 is arranged at the upper part of each building floor; according to the setting principle of building smoke-proof subareas, a plurality of smoke-proof subareas are arranged in each floor of a building, a plurality of smoke inlets which are communicated with the smoke-proof subareas in a one-to-one correspondence mode are arranged on the transverse smoke exhaust subsystem, each smoke inlet is a normally open louver 2, an electric normally closed valve 5 is arranged in each normally open louver 2, each electric normally closed louver 7 is formed by each electric normally closed valve 5 and each normally open louver 2, and when fire disasters happen to the plurality of smoke-proof subareas, only the normally closed electric valves 5 of the plurality of smoke-proof subareas need to be opened to exhaust smoke; the transverse smoke exhaust subsystem 10 comprises a rectangular annular main smoke exhaust pipe 1, and finally the transverse smoke exhaust subsystem 10 is in a shape of a Chinese character kou; the smoke can flow in two directions after entering the transverse smoke exhaust subsystem 10, so that the cross-sectional area of a smoke exhaust pipe of the transverse smoke exhaust subsystem 10 is reduced by half compared with that of a smoke exhaust pipe of a single-way pipe network system; two smoke discharging wells 6 communicated with the outside are arranged on the outer side of the annular main smoke discharging pipe 1 of the transverse smoke discharging subsystem 10; the vertical smoke exhaust subsystem comprises two vertical smoke exhaust pipes 9, the two vertical smoke exhaust pipes 9 are respectively connected with two smoke exhaust wells 6 of each transverse smoke exhaust subsystem 10, the connectivity between the vertical smoke exhaust pipes 9 and the transverse smoke exhaust subsystems 10 is ensured, the vertical smoke exhaust pipes 9 can collect smoke of a plurality of transverse smoke exhaust subsystems 10, after a plurality of transverse smoke exhaust subsystems 10 are communicated with the vertical smoke exhaust pipes, the transverse smoke exhaust subsystems 10 and the vertical smoke exhaust subsystems which form the whole annular pipe network system can be built into a static pressure box in the vertical direction, namely, each transverse smoke exhaust subsystem 10 is equivalent to a branch smoke exhaust pipe of the vertical smoke exhaust subsystem, the reliability and the connection convenience of the system are greatly improved, and as the smoke density with higher temperature is higher than that of air, the smoke vertically rises in a natural state, and enters the vertical smoke exhaust pipes 9 from the transverse smoke exhaust subsystems 10 through the smoke exhaust wells 6, the vertical rising discharge of the flue gas is facilitated; the top of the vertical smoke exhaust pipe 9 is arranged on the outer side of the top of the tower building, a smoke exhaust port communicated with the outside is arranged at the top of the vertical smoke exhaust pipe 9, the two smoke exhaust fans 8 are respectively arranged in the smoke exhaust port, the two smoke exhaust fans 8 and the electric normally-closed valve 5 are in interlocking control, namely when the electric normally-closed valve 5 is started, the smoke exhaust fans 8 are also started simultaneously; when the electric normally-closed valve 5 is closed, the smoke exhaust fan 8 stops running at the same time, and the smoke exhaust work of the annular pipe network system can be controlled conveniently. Under the action of the operation of the smoke exhaust fans, certain negative pressure is formed in the annular pipe network system, the emission of smoke can be accelerated, and when one smoke exhaust fan is damaged or overhauled, the other smoke exhaust fan can bear more than one system smoke exhaust amount; the smoke exhaust rainproof louver 11 is arranged outside the smoke exhaust fan 8, so that the situation that the smoke exhaust pipe is normally communicated with the outside can be guaranteed, and the situation that rainwater enters the smoke exhaust pipe to cause water accumulation and even cause the smoke exhaust pipe to rust in rainy days is prevented; and an impedance composite muffler 12 is arranged in the smoke outlet, so that ventilation noise is reduced during ventilation.
The utility model discloses use of embodiment:
when the building is in a normal safety condition, the electric normally-closed valve 5 is in a closed state, namely, the indoor and outdoor are not communicated, and the smoke exhaust fan 8 is also in a state of stopping working, namely, the annular pipe network system is in an inoperative state. When fire disaster happens in a plurality of smoke-proof subareas of a building, the electric normally-closed valves 5 positioned in the smoke-proof subareas can be manually started on site or automatically started by a fire automatic alarm system or manually started by a fire control room, because the electric normally closed valve 5 and the smoke exhaust fan 8 are controlled in an interlocking way, when the electric normally closed valve 5 is opened, the indoor part and the outdoor part are in a communicated state, and the smoke exhaust fan 8 also starts to operate, a certain negative pressure is formed in the annular pipe network system, so that fire smoke in a building is sucked into the transverse smoke exhaust subsystem 10 from the normally open louver 2, can flow in two directions after entering the transverse smoke exhaust subsystem 10, finally flows to the smoke exhaust well 6 of the annular pipe network, flows to the vertical smoke exhaust pipe 9 from the smoke exhaust well 6, under the vertical rising action of the natural state and the negative pressure action formed by the smoke exhaust fan, the smoke rises to the top of the vertical smoke exhaust pipe 9 and is exhausted from the smoke exhaust port.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the specification, the terms are used for convenience of description and do not limit the utility model in any way.
Claims (8)
1. A circular pipe network system applied to fire protection and smoke exhaust of a building comprises a transverse smoke exhaust subsystem and at least two smoke exhaust fans; the transverse smoke exhaust subsystem is provided with a plurality of smoke inlets communicated with the indoor space and at least two smoke exhaust wells communicated with the outdoor space; the horizontal smoke exhaust subsystem comprises an annular main smoke exhaust pipe and a plurality of branch smoke exhaust pipes communicated with the annular main smoke exhaust pipe, the smoke inlet is formed in the annular main smoke exhaust pipe or/and the branch smoke exhaust pipes, and the smoke exhaust fan is communicated with the smoke exhaust well respectively.
2. The annular pipe network system applied to fire and smoke protection of buildings according to claim 1 comprises a vertical smoke exhaust subsystem and a plurality of transverse smoke exhaust subsystems, wherein the vertical smoke exhaust subsystem comprises at least two vertical smoke exhaust pipes, the at least two vertical smoke exhaust pipes are respectively connected with at least two smoke exhaust wells of each transverse smoke exhaust subsystem, the tops of the at least two vertical smoke exhaust pipes are respectively provided with a smoke exhaust port communicated with the outside, and at least two smoke exhaust fans are respectively arranged in the smoke exhaust ports.
3. The looped pipe network system for fire protection and smoke evacuation of buildings according to claim 2, wherein said smoke evacuation port is located above all of said lateral smoke evacuation subsystems.
4. The annular pipe network system applied to fire control and smoke exhaust of buildings according to any one of claims 1 to 3, wherein the smoke inlet comprises a normally open shutter and a smoke inlet.
5. The annular pipe network system applied to fire and smoke control of buildings according to claim 4, wherein an electric normally-closed valve is further arranged in the smoke inlet.
6. The looped pipe network system applied to building fire protection and smoke exhaust of claim 5, wherein the electric normally-closed valve and the smoke exhaust fan are controlled in an interlocking mode.
7. The annular pipe network system applied to fire and smoke protection of buildings according to claim 2, wherein an impedance compound muffler is arranged in the smoke exhaust port.
8. An annular pipe network system applied to fire control and smoke exhaust of a building as claimed in any one of claims 1 to 3 or 5 to 7, wherein a smoke exhaust rainproof louver is arranged outside the smoke exhaust fan.
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| CN201920857096.1U CN210217035U (en) | 2019-06-06 | 2019-06-06 | Annular pipe network system applied to building fire protection and smoke exhaust |
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| CN201920857096.1U CN210217035U (en) | 2019-06-06 | 2019-06-06 | Annular pipe network system applied to building fire protection and smoke exhaust |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432223A (en) * | 2021-06-16 | 2021-09-24 | 上海恺申消防设备安装有限公司 | Fire-fighting smoke exhaust system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432223A (en) * | 2021-06-16 | 2021-09-24 | 上海恺申消防设备安装有限公司 | Fire-fighting smoke exhaust system |
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