CN113235868A - Smoke exhaust building system for underground space and smoke exhaust system of parking garage - Google Patents
Smoke exhaust building system for underground space and smoke exhaust system of parking garage Download PDFInfo
- Publication number
- CN113235868A CN113235868A CN202110656204.0A CN202110656204A CN113235868A CN 113235868 A CN113235868 A CN 113235868A CN 202110656204 A CN202110656204 A CN 202110656204A CN 113235868 A CN113235868 A CN 113235868A
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- machine room
- smoke exhaust
- underground space
- hoisting machine
- hoisting
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04F17/00—Vertical ducts; Channels, e.g. for drainage
- E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/006—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation with means for hanging lighting fixtures or other appliances to the framework of the ceiling
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
- E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a smoke exhaust building system and a parking garage smoke exhaust system for underground space, wherein the smoke exhaust building system comprises: the hoisting support part is arranged at the position of a top plate of the underground space; and the hoisting machine room is connected with the hoisting supporting part to be hung on the top plate of the underground space and used for accommodating the smoke exhaust fan. Through setting up the hoist and mount supporting part and fixing the hoist and mount computer lab at the roof in secret space, can solve the ground space that the computer lab of discharging fume among the prior art need occupy the secret space effectively, lead to the problem that secret space utilization is low.
Description
Technical Field
The invention relates to the technical field of civil and architectural engineering, in particular to a smoke exhaust building system for an underground space and a smoke exhaust system of a parking garage.
Background
At present, the requirements for fire protection and ventilation in underground spaces are becoming more stringent. For example, large spaces such as underground garages and warehouses need to have higher ventilation requirements, so that normal circulation of air is guaranteed, and harmful gas in the underground spaces can be effectively exhausted by a smoke exhaust system under the potential safety hazards such as fire disasters.
In the prior art, a smoke exhaust system for an underground space is usually arranged by landing a fan, and an independent machine room is required to be arranged so as to arrange equipment such as a smoke exhaust machine. Because need set up solitary smoke exhaust computer lab among the prior art, above-mentioned smoke exhaust computer lab can occupy underground space, especially under the policy that underground space smoke exhaust requirement is stricter more such as underground garage, often need building construction side to construct a plurality of smoke exhaust computer lab and just can satisfy the requirement of discharging fume. Therefore, a plurality of smoke exhaust machine rooms occupy larger effective use area of underground space. For example, the arrangement of a plurality of smoke exhaust machine rooms in an underground garage can reduce the number of parking spaces of the garage, and the utilization rate of the underground garage is low.
Disclosure of Invention
Therefore, the invention aims to provide a smoke exhaust building system for an underground space and a smoke exhaust system of a parking garage, so as to solve the problem that the underground space utilization rate is low because a smoke exhaust machine room in the prior art needs to occupy the ground space of the underground space. The application provides a building system that discharges fume for underground space includes:
the hoisting support part is arranged at the position of a top plate of the underground space;
and the hoisting machine room is connected with the hoisting supporting part to be hung on the top plate of the underground space and used for accommodating the smoke exhaust fan.
The hoisting support part can be the top plate or a support beam can be arranged at the reinforcing position of the top plate.
Optionally, the hoisting supporting part is detachably connected with the hoisting machine room through a clamping structure.
Optionally, the clamping structure includes: the I-shaped beam and the C-shaped hanging beam are arranged on the hoisting supporting part and the hoisting machine room respectively, are matched in shape, and are connected in a matched and inserted mode.
Optionally, the clamping structure further includes:
the first expansion bolt is arranged at the connecting position of the I-shaped beam and the C-shaped hanging beam and is used for fixedly connecting the I-shaped beam and the C-shaped hanging beam; and/or the presence of a gas in the gas,
and the second expansion bolt is used for installing the I-shaped beam or the C-shaped hanging beam on the hoisting support part.
Optionally, the shell body of hoist and mount computer lab includes:
the machine room keel is connected with the clamping structure arranged on the hoisting machine room;
the fire-resistant metal shell is provided with a containing cavity for containing the smoke exhaust fan and a shell interlayer for containing the machine room keel;
and the fireproof heat-insulating material is arranged in the interlayer of the shell.
Optionally, fireproof coatings are arranged on the surfaces of the I-shaped beam and the C-shaped hanging beam; and/or the presence of a gas in the gas,
the hoisting machine room is of a cuboid structure, and the I-shaped beam and/or the C-shaped hanging beam are/is arranged in the length direction of the hoisting machine room.
Optionally, a smoke exhaust building system for an underground space further comprises:
the fire prevention water spraying mechanism is arranged in the hoisting machine room and is used for preventing fire for the hoisting machine room;
the smoke sensing mechanism is used for monitoring whether the hoisting machine room is in fire;
and the drainage mechanism is used for draining accumulated water in the hoisting machine room.
Optionally, the drainage mechanism comprises: and the drainage floor drain is arranged on the side wall of the hoisting machine room and is communicated with the drainage pipe through a quick coupler.
Optionally, a smoke exhaust building system for an underground space further comprises:
the power supply system is communicated with the illuminating mechanism through a power supply line arranged on a top plate of an underground space; and/or the presence of a gas in the gas,
and the machine room control mechanism is used for controlling the opening or closing of the hoisting machine room and/or the starting and stopping of the smoke exhaust fan.
A parking garage smoke evacuation system comprising:
a smoke-exhausting building system for an underground space; and the number of the first and second groups,
underground garage major structure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an installation position of a hoisting machine room provided by the invention in an underground space;
fig. 2 is a top view of an internal structure of a hoisting machine room provided by the invention;
fig. 3 is a front view of an internal structure of a hoisting machine room provided by the invention;
fig. 4 is a schematic view of a connection structure of a hoisting machine room and a hoisting support part provided by the invention;
fig. 5 is a schematic diagram of an internal structure of an outer shell of a hoisting machine room provided by the invention.
Description of reference numerals:
1-hoisting a supporting part; 2, hoisting the machine room; 3-smoke exhaust fan; 4-i-beam; 5-C-shaped hanging beams; 6-a first expansion bolt; 7-a second expansion bolt; 8-machine room keel; 9-a refractory metal housing; 10-fireproof heat-insulating material; 11-a water spray prevention mechanism; 12-a smoke detection mechanism; 13-a drainage mechanism; 14-an illumination mechanism; 15-a machine room control mechanism; 16-an underground parking garage main body structure; 17-supply line.
The technical scheme of the invention has the following advantages:
1. the invention provides a smoke exhaust building system for an underground space, which comprises: the hoisting support part is arranged at the position of a top plate of the underground space; and the hoisting machine room is connected with the hoisting supporting part to be hung on the top plate of the underground space and used for accommodating the smoke exhaust fan.
The bearing capacity of underground space roof position can be improved effectively through setting up the hoist and mount supporting part. Moreover, the machine room is hoisted and arranged at the top plate position of the underground space, so that the problem that the smoke exhaust machine room in the prior art needs to be arranged on the ground to cause the smoke exhaust machine room to occupy the ground space of the underground space can be effectively solved, more space is effectively vacated, the utilization rate of the underground space is improved, the lower net height is guaranteed to be 2.2m and above, and underground buildings such as parking lots are guaranteed to meet the smoke exhaust requirements. In addition, the smoke exhaust building system can also give consideration to the building air exhaust function under the condition of requirement.
2. According to the smoke exhaust building system for the underground space, the hoisting supporting part is detachably connected with the hoisting machine room through the clamping structure.
The hoisting supporting part is detachably connected with the hoisting machine room through the clamping structure, the clamping structure can effectively realize the position preassembly of the hoisting machine room, and convenience is provided for fixing the hoisting supporting part and the hoisting machine room together. Moreover, the hoisting supporting part and the hoisting machine room can be detachably connected, so that the hoisting machine room can be conveniently installed or maintained and replaced by constructors, and the installation and maintenance convenience of the smoke exhaust building system is improved.
3. The invention provides a smoke exhaust building system for an underground space, which comprises a clamping structure and a smoke exhaust structure, wherein the clamping structure comprises: the I-shaped beam and the C-shaped hanging beam are arranged on the hoisting supporting part and the hoisting machine room respectively, are matched in shape, and are connected in a matched and inserted mode.
Through the I-shaped beam and the C-shaped hanging beam with the matched shapes, the hoisting machine room can be simply and conveniently hung on the hoisting supporting part in a detachable mode, and the installation convenience is improved on the premise that the structural stability is guaranteed. Moreover, when the C-shaped hanging beam is arranged on the hoisting machine room, the C-shaped hanging beam can be inserted into the I-shaped beam along one end of the I-shaped beam, and the operation difficulty of installing the hoisting machine room by constructors can be further reduced by inserting the C-shaped hanging beam from the end part of the I-shaped beam in a mode of fixing the hoisting machine room.
4. The invention provides a smoke exhaust building system for an underground space, wherein an outer shell of a hoisting machine room comprises: the machine room keel is connected with the clamping structure arranged on the hoisting machine room; the fire-resistant metal shell is provided with a containing cavity for containing the smoke exhaust fan and a shell interlayer for containing the machine room keel; and the fireproof heat-insulating material is arranged in the interlayer of the shell.
Above-mentioned computer lab fossil fragments can improve the intensity of hoist and mount computer lab effectively, guarantee the joint strength of hoist and mount computer lab and underground space roof. Moreover, the fireproof metal shell and the fireproof heat-insulating material can effectively play a role in fireproof and heat-insulating, and the safety of the whole smoke-discharging building system is ensured.
5. The invention provides a smoke exhaust building system for an underground space, which is used for the smoke exhaust building system for the underground space and also comprises: the fire prevention water spraying mechanism is arranged in the hoisting machine room and is used for preventing fire for the hoisting machine room; the smoke sensing mechanism is used for monitoring whether the hoisting machine room is in fire; and the drainage mechanism is used for draining accumulated water in the hoisting machine room.
The fire prevention and water spraying mechanism can effectively prevent fire of circuit equipment in the hoisting machine room, and the safety of the hoisting machine room is ensured. In addition, the drainage mechanism can quickly and effectively drain accumulated water in the hoisting machine room, so that the problem that the electrical equipment is damaged due to the fact that the accumulated water submerges the electrical equipment is avoided.
6. The invention provides a smoke exhausting system of a parking garage, which comprises: a smoke-exhausting building system for an underground space; and, underground garage major structure. The smoke exhaust system of the parking garage has any advantage of a smoke exhaust building system for an underground space.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides a smoke exhaust building system for an underground space, as shown in fig. 1 to 3, which includes:
the hoisting support part 1 is arranged at the top plate position of the underground space;
and the hoisting machine room 2 is connected with the hoisting supporting part 1 to be hung on the top plate of the underground space and is used for accommodating the smoke exhaust fan 3. The bearing capacity of underground space roof position can be improved effectively through setting up hoist and mount supporting part 1. Moreover, the machine room is hoisted and arranged at the top plate position of the underground space, so that the problem that the smoke exhaust machine room in the prior art needs to be arranged on the ground, the ground space problem that the smoke exhaust machine room needs to occupy the underground space is effectively solved, and more space is effectively vacated, so that the utilization rate of the underground space is improved. In this embodiment, as shown in fig. 5, the outer casing of the hoisting machine room 2 includes: the machine room keel 8 is connected with the clamping structure arranged on the hoisting machine room 2; the fire-resistant metal shell 9 is provided with a containing cavity for containing the smoke exhaust fan 3 and a shell interlayer for containing the machine room keel 8; the fireproof heat-insulating material 10 is arranged in the interlayer of the shell; above-mentioned computer lab fossil fragments 8 can improve the intensity of hoist and mount computer lab 2 effectively, guarantee the joint strength of hoist and mount computer lab 2 and underground space roof. Moreover, the fireproof metal shell 9 and the fireproof heat-insulating material 10 can effectively play a role in fireproof and heat-insulating, so that the safety of the whole smoke-discharging building system is ensured;
the fire prevention water spraying mechanism 11 is arranged in the hoisting machine room 2 and used for preventing fire of the hoisting machine room 2;
the smoke sensing mechanism 12 is used for monitoring whether a fire disaster occurs in the hoisting machine room 2;
and the drainage mechanism 13 is used for draining accumulated water in the hoisting machine room 2. The drainage mechanism 13 includes: and the drainage floor drain is arranged on the side wall of the hoisting machine room 2 and is communicated with the drainage pipe through a quick coupler. The hoisting machine room 2 is internally provided with two drainage floor drains; the fire prevention and water spraying mechanism 11 can effectively prevent fire of circuit equipment in the hoisting machine room 2, and the safety of the hoisting machine room 2 is ensured. In addition, the drainage mechanism 13 can quickly and effectively drain accumulated water in the hoisting machine room 2, so that the problem that the electrical equipment is damaged due to the fact that the accumulated water submerges the electrical equipment is avoided;
the lighting mechanism 14 is communicated with a power supply system through a power supply line 17 arranged on the top plate of the underground space;
and the machine room control mechanism 15 is used for controlling the hoisting machine room 2 to be opened or closed and controlling the start and stop of the smoke exhaust fan 3.
In this embodiment, as shown in fig. 4, the hoisting support part 1 is detachably connected to the hoisting machine room 2 through a clamping structure. The above-mentioned joint structure includes: the hoisting machine room comprises a hoisting support part 1, a hoisting machine room 2, an I-shaped beam 4 and a C-shaped hanging beam 5 which are arranged on the hoisting support part 1 and the hoisting machine room 2 respectively and are matched in shape, a first expansion bolt 6 for fixedly connecting the I-shaped beam 4 and the C-shaped hanging beam 5 and a second expansion bolt 7 for installing the I-shaped beam 4 or the C-shaped hanging beam 5 on the hoisting support part 1. The I-shaped beam 4 and the C-shaped hanging beam 5 are matched, inserted and connected. The hoisting machine room 2 is of a cuboid structure, and the I-shaped beam 4 and the C-shaped hanging beam 5 are arranged in the length direction of the hoisting machine room 2. And the surfaces of the I-shaped beam 4 and the C-shaped hanging beam 5 are provided with fireproof coatings. The hoisting supporting part 1 is detachably connected with the hoisting machine room 2 through a clamping structure, the clamping structure can effectively realize the position preassembly of the hoisting machine room 2, and convenience is provided for fixing the hoisting supporting part 1 and the hoisting machine room 2 together. Moreover, the hoisting supporting part 1 and the hoisting machine room 2 can be detachably connected, so that the hoisting machine room 2 can be conveniently installed or maintained and replaced by constructors, and the installation and maintenance convenience of the smoke exhaust building system is improved.
Of course, the connection mode of the hoisting support part 1 and the hoisting machine room 2 is not particularly limited in the application of the present invention, and in other embodiments, the hoisting support part 1 and the hoisting machine room 2 may be welded and fixed together.
Certainly, the application of the invention does not specifically limit the clamping mode of the hoisting support part 1 and the hoisting machine room 2, and the hoisting support part 1 and the hoisting machine room 2 can also be fixedly connected through a horizontal stay bar which is connected in a matching way and a collar which is sleeved on the horizontal stay bar.
Example 2
A parking garage smoke evacuation system comprising: a smoke-exhausting building system for an underground space; and an underground parking garage main structure 16.
A smoke-exhausting building system, as shown in fig. 1, comprising:
the hoisting support part 1 is arranged at the top plate position of the underground space;
and the hoisting machine room 2 is connected with the hoisting supporting part 1 to be hung on the top plate of the underground space and is used for accommodating the smoke exhaust fan 3. The bearing capacity of underground space roof position can be improved effectively through setting up hoist and mount supporting part 1. Moreover, the machine room is hoisted and arranged at the top plate position of the underground space, so that the problem that the smoke exhaust machine room in the prior art needs to be arranged on the ground, the ground space problem that the smoke exhaust machine room needs to occupy the underground space is effectively solved, and more space is effectively vacated, so that the utilization rate of the underground space is improved. In this embodiment, as shown in fig. 5, the outer casing of the hoisting machine room 2 includes: the machine room keel 8 is connected with the clamping structure arranged on the hoisting machine room 2; the fire-resistant metal shell 9 is provided with a containing cavity for containing the smoke exhaust fan 3 and a shell interlayer for containing the machine room keel 8; the fireproof heat-insulating material 10 is arranged in the interlayer of the shell;
the fire prevention water spraying mechanism 11 is arranged in the hoisting machine room 2 and used for preventing fire of the hoisting machine room 2;
the smoke sensing mechanism 12 is used for monitoring whether a fire disaster occurs in the hoisting machine room 2;
and the drainage mechanism 13 is used for draining accumulated water in the hoisting machine room 2. The drainage mechanism 13 includes: and the drainage floor drain is arranged on the side wall of the hoisting machine room 2 and is communicated with the drainage pipe through a quick coupler. The hoisting machine room 2 is internally provided with two drainage floor drains;
the lighting mechanism 14 is communicated with a power supply system through a power supply line 17 arranged on the top plate of the underground space;
and the machine room control mechanism 15 is used for controlling the hoisting machine room 2 to be opened or closed and controlling the start and stop of the smoke exhaust fan 3.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A smoke evacuation building system for an underground space, comprising:
the hoisting support part (1) is arranged at the top plate position of the underground space;
and the hoisting machine room (2) is connected with the hoisting supporting part (1) to be hung on the top plate of the underground space and used for accommodating the smoke exhaust fan (3).
2. A smoke exhaust building system for underground space according to claim 1 wherein the hoisting support (1) is detachably connected to the hoisting machine room (2) by a clamping structure.
3. A smoke exhaust building system for an underground space according to claim 2 wherein the clamping structure comprises: the hoisting machine room is characterized by being respectively arranged on the hoisting supporting part (1) and the hoisting machine room (2), the I-shaped beam (4) and the C-shaped hanging beam (5) are matched in shape, and the I-shaped beam (4) and the C-shaped hanging beam (5) are matched, spliced and connected.
4. A smoke evacuation building system for an underground space according to claim 3 wherein the clamping structure further comprises:
the first expansion bolt (6) is arranged at the connecting position of the I-shaped beam (4) and the C-shaped hanging beam (5) and is used for fixedly connecting the I-shaped beam and the C-shaped hanging beam; and/or the presence of a gas in the gas,
and the second expansion bolt (7) is used for installing the I-shaped beam (4) or the C-shaped hanging beam (5) on the hoisting support part (1).
5. A smoke exhaust building system for an underground space according to claim 2, characterized in that the outer casing of the hoisting machine room (2) comprises:
the machine room keel (8), the machine room keel (8) is connected with the clamping structure arranged on the hoisting machine room (2);
the fire-resistant metal shell (9) is provided with a containing cavity for containing the smoke exhaust fan (3) and a shell interlayer for containing the machine room keel (8);
and the fireproof heat-insulating material (10) is arranged in the interlayer of the shell.
6. A smoke exhaust building system for underground space according to claim 3 wherein the surfaces of said i-beams (4) and said C-shaped hanging beams (5) are provided with fire retardant coatings; and/or the presence of a gas in the gas,
the hoisting machine room (2) is of a cuboid structure, and the I-shaped beam (4) and/or the C-shaped hanging beam (5) are/is arranged in the length direction of the hoisting machine room (2).
7. A smoke exhaust building system for an underground space according to claim 1 further comprising:
the fire prevention water spraying mechanism (11) is arranged in the hoisting machine room (2) and is used for preventing fire of the hoisting machine room (2);
the smoke sensing mechanism (12) is used for monitoring whether the hoisting machine room (2) is in fire;
and the drainage mechanism (13) is used for draining accumulated water in the hoisting machine room (2).
8. A smoke exhaust building system for an underground space according to claim 7, wherein said drainage mechanism (13) comprises: and the drainage floor drain is arranged on the side wall of the hoisting machine room (2) and is communicated with the drainage pipe through a quick connector.
9. A smoke exhaust building system for an underground space according to claim 1 further comprising:
the lighting mechanism (14), the power supply system is communicated with the lighting mechanism (14) through a power supply line (17) arranged on the top plate of the underground space; and/or the presence of a gas in the gas,
and the machine room control mechanism (15) is used for controlling the opening or closing of the hoisting machine room (2) and/or the starting and stopping of the smoke exhaust fan (3).
10. A garage smoke evacuation system comprising:
a smoke exhaust building system for an underground space as claimed in any one of claims 1 to 9; and the number of the first and second groups,
an underground parking garage body structure (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110656204.0A CN113235868A (en) | 2021-06-11 | 2021-06-11 | Smoke exhaust building system for underground space and smoke exhaust system of parking garage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110656204.0A CN113235868A (en) | 2021-06-11 | 2021-06-11 | Smoke exhaust building system for underground space and smoke exhaust system of parking garage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113235868A true CN113235868A (en) | 2021-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110656204.0A Pending CN113235868A (en) | 2021-06-11 | 2021-06-11 | Smoke exhaust building system for underground space and smoke exhaust system of parking garage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113235868A (en) |
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2021
- 2021-06-11 CN CN202110656204.0A patent/CN113235868A/en active Pending
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