CN214536681U - Smoke exhaust and air exhaust system for short space - Google Patents
Smoke exhaust and air exhaust system for short space Download PDFInfo
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- CN214536681U CN214536681U CN202120650070.7U CN202120650070U CN214536681U CN 214536681 U CN214536681 U CN 214536681U CN 202120650070 U CN202120650070 U CN 202120650070U CN 214536681 U CN214536681 U CN 214536681U
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Abstract
The utility model discloses a system of airing exhaust of discharging fume for short and small space, including the exhaust fan room, one side of exhaust fan room sets up the collection chamber, is provided with the take-over box in the exhaust fan room, is used for the exhaust fume system of discharging fume and is used for the exhaust system of airing exhaust, and the exit end and the collection chamber of exhaust system and exhaust system communicate, and the entrance point and the takeover box of exhaust system and exhaust system communicate, and the takeover box is installed in the overhead floor department of exhaust fan room, is provided with a plurality of wind gaps on the exhaust fan room side wall that corresponds with the takeover box, and the wind gap communicates with the takeover box through the tuber pipe; the utility model does not need to worry about the influence of the beam on the installation height of the tuyere, does not need to come out from the air-receiving pipe of the exhaust fan room in the short space room, does not have the occupied space of the air pipe in the short space room, does not influence the net height of the room, and does not need to consider whether the collision occurs between the air pipe and other professional pipelines; the required air ports and air pipes are few, the material and the cost are saved, and the installation, debugging, overhauling and control engineering quantity is small.
Description
Technical Field
The utility model relates to a exhaust system that discharges fume for short little space belongs to fire control exhaust fume extraction technical field.
Background
Regarding the national standard requirements of the fire-fighting smoke exhaust system, the smoke exhaust amount of each smoke exhaust port is not allowed to exceed the maximum allowable smoke exhaust amount of a single air port, the clear height of a room is very small for a short space, even if the air ports are tightly attached to the beam bottom, the maximum allowable smoke exhaust amount of the single air port is very small, and the smoke exhaust amount of the place with the clear height of the building space being less than or equal to 6m is clearly specified in the standard building smoke prevention and exhaust system technical standard GB 51251-2017, and the smoke exhaust amount of the place with the clear height of the building space being less than or equal to 15000m3H; for example, for a space with the net height of 2.4m, the beam height of 400mm and the smoke blocking vertical wall distance of 1.9m, the side air inlet with the size of 500 multiplied by 160 is adopted, and when the top of the air inlet is tightly attached to the bottom of the beam, the thickness of a smoke layer is only 0.235m, so that the maximum allowable smoke discharge amount of a single air inlet is only 611.48m3At least 25 air ports are required to be arranged, the position of a short space is limited, and the standard is difficult to achieve; the air pipe occupies a large space in a room and is difficult to stagger with other professional pipelines (such as an electric professional cable bridge and a water professional water pipe), so the fire-fighting and smoke-discharging design of a short space is always a big problem; through retrieval, the application date is: 3/6/2020, chinese patent application No. 202020264450.2, with the patent names: a fire-fighting smoke exhaust system is provided, which is connected to a main pipe through a plurality of groups of vertical pipes, a plurality of terminal branch pipes and a plurality of horizontal pipes so as to meet the installation clear height requirement of an electric pipeline in a space, divides the smoke quantity into a plurality of air pipes, and reduces the air quantity of a single air pipe so as to achieve the purpose of reducing the size of the air pipe; this kind reduces the amount of wind of single tuber pipe through increasing tuber pipe quantity, perhaps adopts the higher clear height requirement of wider more flat tuber pipe under satisfying room electromechanical pipeline, and the size of the space that occupies does not reduce, has only shared the space that occupies, on the contrary because the tuber pipe quantity increases, leads to installation work volume grow, and engineering volume such as later stage debugging, maintenance, control also increases thereupon.
Disclosure of Invention
The utility model aims at the problems in the prior art, and provides a smoke exhaust and air exhaust system for a short space, which effectively reduces the number of air ports, does not need to worry about the influence of beams on the installation height of the air ports, does not need to come out from an air exhaust machine room air receiving pipe in the short space, does not have air pipe occupation space in the short space, does not influence the net height of the room, meets the net height requirement of the room, and does not need to consider whether collision can occur between the smoke exhaust and air exhaust system and other professional pipelines; the required air ports and air pipes are few, the material and the cost are saved, and the installation, debugging, overhauling and control engineering quantity is small.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a system of airing exhaust of discharging fume for short and small space, includes the exhaust fan room, one side of exhaust fan room sets up the collection chamber, be provided with the connecting box in the exhaust fan room, be used for the system of discharging fume and be used for the exhaust system of airing exhaust, the exit end and the collection chamber intercommunication of system of discharging fume and exhaust system, the entrance point and the connecting box intercommunication of system of discharging fume and exhaust system, the connecting box is installed in exhaust fan room overhead floor department, is provided with a plurality of wind gaps on the exhaust fan room side wall that corresponds with the connecting box, the wind gap passes through tuber pipe and connecting box intercommunication.
As a further preference of the utility model, the overhead floor of exhaust fan room is all hugged closely in takeover case and wind gap.
As a further preferred aspect of the present invention, the peripheries of the tube receiving box, the tuyere, and the air duct are provided with fire-proof plates.
As a further preference of the utility model, the smoke exhaust system comprises a smoke exhaust pipe and a smoke exhauster, wherein two ends of the smoke exhaust pipe are respectively communicated with the connecting pipe box and the gas collecting chamber, the smoke exhauster is arranged on the smoke exhaust pipe, and a first smoke exhaust fire damper is arranged on the smoke exhaust pipe between the connecting pipe box and the smoke exhauster; the exhaust system comprises an exhaust pipe and an exhaust fan, wherein two ends of the exhaust pipe are respectively communicated with the connecting pipe box and the air collecting chamber, the exhaust fan is arranged on the exhaust pipe, and a first fire damper is arranged on the exhaust pipe between the connecting pipe box and the exhaust fan.
As a further preference of the present invention, a check valve is provided on the exhaust pipe between the exhaust fan and the collection chamber, and a check valve is provided on the exhaust pipe between the exhaust fan and the collection chamber.
As the utility model discloses a further preferred, be provided with fire damper two of discharging fume on the exhaust pipe that is close to the plenum chamber, be provided with fire damper two on the exhaust pipe that is close to the plenum chamber.
As a further optimization of the utility model, a smoke exhaust fire prevention valve III is arranged on the smoke exhaust pipe close to the connecting pipe box.
As the utility model discloses a further preferred, the exit of exhaust fan all is provided with the soft takeover of fire prevention with the junction of exhaust pipe.
As the utility model discloses a further preferred, be provided with two fan foundations in the exhaust fan room, induced-draft fan and exhaust fan are installed on two fan foundations through fan fixing device respectively.
As a further preference of the utility model, the distance between the smoke exhaust fan and the exhaust fan is at least 600 mm; and the distance between the smoke exhaust fan, the exhaust fan and the wall body of the exhaust fan room is at least 600 mm.
The utility model discloses an useful part lies in:
the air outlets are directly arranged on the side wall of the exhaust fan room and are tightly attached to the bottom of the floor slab, the connecting pipe box is arranged above the exhaust fan room and is tightly attached to the bottom of the floor slab, each air outlet is communicated with the connecting pipe box through an air pipe, the installation height is large, the maximum allowable smoke exhaust amount of a single air outlet is large, the number of air outlets to be arranged is small, the influence of a beam on the installation height of the air outlet is not needed to be worried about, the air outlets do not need to come out of the air connecting pipe of the exhaust fan room in a low-small space room, no air pipe occupied space exists in the low-small space room, the influence on the net height of the room is avoided, the net height requirement of the room is met, and whether collision between the air outlets and other professional pipelines is avoided; the required air ports and air pipes are few, the material and the cost are saved, and the installation, debugging, overhauling and control engineering quantity is small.
Drawings
FIG. 1 is a schematic top view of the exhaust fan housing of the present invention;
FIG. 2 is a cross-sectional view taken along line A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B of FIG. 1;
the meaning of the reference symbols in the figures:
1-smoke exhaust pipe, 2-smoke exhaust machine, 3-check valve, 4-smoke exhaust fire prevention valve I, 5-air pipe, 6-collecting box, 7-air port, 8-fan foundation, 9-fan fixing device, 10-air collecting chamber, 11-exhaust pipe, 12-exhaust fan, 13-fire prevention flexible connecting pipe, 14-fire prevention valve I, 15-fire prevention plate, 16-smoke exhaust fire prevention valve II, 17-fire prevention valve II, 18-smoke exhaust fire prevention valve III and 20-smoke exhaust fan room.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1-3, the present embodiment is a smoke exhaust and air exhaust system for a short space, which includes a fan room 20, a collection chamber 10 is disposed on one side of the fan room 20, a connection box 6, a smoke exhaust system for smoke exhaust and an air exhaust system for air exhaust are disposed in the fan room 20, outlet ends of the smoke exhaust system and the air exhaust system are communicated with the collection chamber 10, inlet ends of the smoke exhaust system and the air exhaust system are communicated with the connection box 6, the connection box 6 is mounted on a floor above the fan room 20, a plurality of air ports 7 are disposed on a side wall of the fan room 20 corresponding to the connection box 6, and the air ports 7 are communicated with the connection box 6 through air pipes 5.
In the embodiment, the connecting pipe box 6 and the air port 7 are tightly attached to the floor above the air exhaust fan room 20; fire-proof plates 15 are arranged on the peripheries of the connecting pipe box 6, the air port 7 and the air pipe 5; the fire-proof plate 15 adopts a 2h fire-proof limit fire-proof plate.
In the embodiment, the smoke exhaust system comprises a smoke exhaust pipe 1 and a smoke exhaust machine 2, two ends of the smoke exhaust pipe 1 are respectively communicated with a connecting pipe box 6 and a gas collecting chamber 10, the smoke exhaust machine 2 is arranged on the smoke exhaust pipe 1, and a smoke exhaust fire damper I4 is arranged on the smoke exhaust pipe 1 between the connecting pipe box 6 and the smoke exhaust machine 2; the exhaust system comprises an exhaust pipe 11 and an exhaust fan 12, two ends of the exhaust pipe 11 are respectively communicated with the connecting pipe box 6 and the air collecting chamber 10, the exhaust fan 12 is arranged on the exhaust pipe 11, and a first fire damper 14 is arranged on the exhaust pipe 11 between the connecting pipe box 6 and the exhaust fan 12.
In order to prevent the smoke or gas in the gas collection chamber 10 from flowing backwards, a check valve 3 is arranged on the smoke exhaust pipe 1 between the smoke exhaust machine 2 and the gas collection chamber 10; a check valve 3 is arranged on the exhaust pipe 11 between the exhaust fan 12 and the gas collecting chamber 10.
In order to prevent the fire from spreading to the collection chamber 10 along the smoke exhaust pipe 1 or the exhaust pipe 11, a second smoke exhaust fire damper 16 is arranged on the smoke exhaust pipe 1 close to the collection chamber 10, and a second fire damper 17 is arranged on the exhaust pipe 11 close to the collection chamber 10; and the second smoke exhaust fire damper 16 and the second fire damper 17 are respectively arranged within 200mm from the wall.
In the embodiment, a third smoke exhaust fire prevention valve 18 is arranged on the smoke exhaust pipe 1 close to the connecting pipe box 6.
In this embodiment, the joints between the inlet and outlet of the exhaust fan 12 and the exhaust duct 11 are provided with fireproof flexible connecting pipes 13.
In the embodiment, two fan bases 8 are arranged in the exhaust fan room 20, and the exhaust fan 2 and the exhaust fan 12 are respectively arranged on the two fan bases 8 through the fan fixing devices 9; the distance between the smoke exhaust fan 2 and the exhaust fan 12 is at least 600 mm; and the distance between the smoke exhaust fan 2, the exhaust fan 12 and the wall body of the exhaust fan room 20 is at least 600 mm.
The working process of the smoke exhaust system of the embodiment is as follows:
the first smoke exhaust fire valve 4 and the second smoke exhaust fire valve 16 are in an open state at ordinary times, the third smoke exhaust fire valve 18 is in a closed state at ordinary times, when a fire disaster occurs in a short space indoor, the smoke exhaust machine 2 is started, the third smoke exhaust fire valve 18 is opened, the first smoke exhaust fire valve 4 and the second smoke exhaust fire valve 16 are kept in an open state, smoke of the fire disaster in the short space indoor enters the collecting box 6 through the air opening 7 and the air pipe 5, then is exhausted into the gas collection chamber 10 through the smoke exhaust pipe 1 and the smoke exhaust machine 2, and finally is exhausted out of a building through the gas exhaust well communicated with the gas collection chamber 10.
The working process of the air exhaust system of the embodiment is as follows:
the exhaust fan 12, the first fire-proof valve 14 and the second fire-proof valve 17 are in an open state at ordinary times, dirty gas in the chamber of the short and small space enters the collecting box 6 through the air opening 7 and the air pipe 5, then is exhausted into the gas collection chamber 10 through the exhaust pipe 11 and the exhaust fan 12, and finally is exhausted out of the building through an exhaust well communicated with the gas collection chamber 10; so as to achieve the purpose of keeping the indoor air quality of the short space; when a fire disaster happens in the short-space indoor space, the exhaust fan 12, the first fire damper 14 and the second fire damper 17 are closed, the exhaust system stops running, and the smoke exhaust system works.
All the equipment in the embodiment is intensively arranged in the exhaust fan room 20 and comprises a smoke exhaust system and an exhaust system, wherein the smoke exhaust system is closed at ordinary times, and is opened when a fire disaster happens in a short space indoor, so that the smoke of the fire disaster in the short space indoor is exhausted to the outside of a building; the exhaust system is opened at ordinary times to discharge indoor waste heat, residual humidity, smell and the like of the short space to the outside of the building, and is closed when a fire disaster happens in the short space.
In the embodiment, because the air duct 5 is not arranged in the short space room outside the exhaust fan room 20, the influence of the building beam on the installation height of the air duct 5 is not considered, and the air port 7 can be directly and tightly installed at the bottom of the floor slab, for example, for a short space with the clear height of 2.4m, the beam height of 400mm and the smoke blocking vertical wall distance of 1.9m, the side air supply port 7 with the size of 500 × 160 is adopted, when the top of the air port 7 is tightly installed at the bottom of the floor slab, the thickness of the smoke layer is 0.42m, and the maximum allowable smoke discharge amount of a single air port 7 is 2600m3H, since the specified exhaust air volume is at least 15000m3H, so the present embodiment needs to be provided with at least six air ports 7, and compared with the existing manner of installing the air ports 7 at the beam bottom of the outlet air duct 5, the manner of the present embodiment can reduce at least nineteen air ports 7; the smoke exhausting mode of the embodiment is very suitable for a short space, the horizontal maximum distance between any point in the short space and the air opening 7 should not exceed 30m, and if the horizontal maximum distance exceeds 30m, the purpose can be achieved by adding the fan exhausting room 20.
In the embodiment, the air ports 7 are directly formed in the side wall of the exhaust fan room 20, the air ports 7 can be specifically set according to actual conditions on site, a fire-fighting exhaust system is concentrated inside the exhaust fan room 20, the air pipes 5 are not arranged in a short space room outside the exhaust fan room 20, the indoor clear height of the short space is not influenced, collision with other professional pipelines is avoided, the quantity of the air pipes 5 in the air ports 7 is effectively reduced while the exhaust air quantity is ensured, materials and cost are saved, and the engineering quantities of installation, later debugging, overhauling, control and the like are reduced while the materials are saved; in the prior art, the air ports 7 are generally arranged below the beams, so that for a short space, the distance between the suction ports of the air ports 7 and the smoke blocking vertical wall is very small, namely the thickness of a smoke layer is very small, the maximum smoke discharge allowed by a single air port 7 is small, and no matter how large the space is, the specification requires that the smoke discharge is not less than 15000m3The number of the air ports 7 and the air pipes 5 is increased, the installation and later debugging, overhauling, control and other engineering quantities are increased, the space in the room with the short space is limited originally, and the air pipes 5 arranged above the room with the short space hardly meet the requirement of the clean height of the room; the utility model discloses directly set up wind gap 7 on the 20 side walls of exhaust fan room, wind gap 7 is hugged closely the installation at the bottom of the floor slab, hug closely a take-over box 6 of installation at the bottom of the floor slab in the air exhaust fan room 20, every wind gap 7 is through a tuber pipe 5 and take-over box 6 intercommunication, the mounting height is great, the biggest allowance of single wind gap 7 is big, the quantity of wind gap 7 that need set up is few, and do not worry the influence of roof beam to wind gap 7 mounting height, do not need to come out from exhaust fan room 20 air receiving pipe 5 in the short space room, there is not tuber pipe 5 occupation space in the short space room, can not produce the influence to the clear height in room, satisfy the clear height requirement in room, need not consider even with other professional pipelines whether can bump; the required air ports 7 and air pipes 5 are few, the material and cost are saved, and the installation, debugging, overhauling and control engineering quantity is small.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "disposed" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection or disposition; can be mechanically or electrically connected; the two elements can be directly connected, indirectly connected through an intermediate medium, or communicated with each other inside; the specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "some examples," or "practical application" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention; in this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, principal features and advantages of the invention; it should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a discharge fume exhaust system for short and small space, includes row fan room, one side of row fan room sets up collection chamber, its characterized in that: the exhaust system is characterized in that a collecting box, a smoke exhaust system for discharging smoke and an exhaust system for exhausting air are arranged in the exhaust fan room, the outlet ends of the smoke exhaust system and the exhaust system are communicated with a gas collection chamber, the inlet ends of the smoke exhaust system and the exhaust system are communicated with the collecting box, the collecting box is arranged on an upper floor of the exhaust fan room, a plurality of air ports are arranged on the side wall of the exhaust fan room corresponding to the collecting box, and the air ports are communicated with the collecting box through air pipes.
2. A smoke exhaust and air exhaust system for a short space as claimed in claim 1, wherein said nozzle box and said tuyere are closely attached to the floor above the room of the exhauster.
3. A system for discharging fumes and air for short spaces according to claim 1, wherein the peripheries of the header box, the tuyere and the air duct are provided with fire-proof plates.
4. A smoke exhaust and air exhaust system for a short space according to claim 1, wherein the smoke exhaust system comprises a smoke exhaust pipe and an air exhauster, two ends of the smoke exhaust pipe are respectively communicated with the connecting pipe box and the air collecting chamber, the air exhauster is arranged on the smoke exhaust pipe, and a first smoke exhaust fire valve is arranged on the smoke exhaust pipe between the connecting pipe box and the air exhauster; the exhaust system comprises an exhaust pipe and an exhaust fan, wherein two ends of the exhaust pipe are respectively communicated with the connecting pipe box and the air collecting chamber, the exhaust fan is arranged on the exhaust pipe, and a first fire damper is arranged on the exhaust pipe between the connecting pipe box and the exhaust fan.
5. The system of claim 4, wherein a check valve is disposed on the exhaust pipe between the exhaust fan and the collection chamber, and a check valve is disposed on the exhaust pipe between the exhaust fan and the collection chamber.
6. A smoke exhaust and air exhaust system for a short space according to claim 4 or 5, wherein a second smoke exhaust and fire prevention valve is arranged on the smoke exhaust pipe close to the air collection chamber, and a second fire prevention valve is arranged on the smoke exhaust pipe close to the air collection chamber.
7. A smoke exhaust system for a short space according to claim 4 wherein a third smoke exhaust fire damper is provided on the smoke exhaust pipe adjacent to the channel box.
8. A smoke and air exhaust system for short space as claimed in claim 4 wherein the connection between the inlet and outlet of the exhaust fan and the exhaust pipe is provided with fireproof flexible connecting pipes.
9. A system for discharging smoke and air in a short space as claimed in claim 4, wherein two fan bases are installed in said fan room, and said smoke exhaust fan and said air exhaust fan are installed on said two fan bases respectively by means of fan fixing devices.
10. A smoke exhaust and air exhaust system for a short space according to claim 4 or 9 wherein the distance between said smoke exhaust fan and air exhaust fan is at least 600 mm; and the distance between the smoke exhaust fan, the exhaust fan and the wall body of the exhaust fan room is at least 600 mm.
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| CN202120650070.7U CN214536681U (en) | 2021-03-31 | 2021-03-31 | Smoke exhaust and air exhaust system for short space |
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| CN202120650070.7U CN214536681U (en) | 2021-03-31 | 2021-03-31 | Smoke exhaust and air exhaust system for short space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963385A (en) * | 2022-05-19 | 2022-08-30 | 武汉久弘建筑科技有限公司 | Basement ventilation and smoke exhaust system and basement |
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2021
- 2021-03-31 CN CN202120650070.7U patent/CN214536681U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963385A (en) * | 2022-05-19 | 2022-08-30 | 武汉久弘建筑科技有限公司 | Basement ventilation and smoke exhaust system and basement |
| CN114963385B (en) * | 2022-05-19 | 2024-04-30 | 武汉久弘建筑科技有限公司 | Basement ventilation and smoke exhaust system and basement |
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