CN114777257A - Exhaust system with buffer function - Google Patents
Exhaust system with buffer function Download PDFInfo
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- CN114777257A CN114777257A CN202210416596.8A CN202210416596A CN114777257A CN 114777257 A CN114777257 A CN 114777257A CN 202210416596 A CN202210416596 A CN 202210416596A CN 114777257 A CN114777257 A CN 114777257A
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- air
- air duct
- exhaust
- central
- exhaust system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention provides an exhaust system with a buffering function, which is suitable for room groups in a building, and comprises a central air pipe and an exhaust module, wherein return air pipes of a plurality of rooms are connected with the central air pipe; the central air pipe is connected with the air suction port of the air exhaust fan through at least one rear end air pipe, and the air exhaust port of the air exhaust module is communicated with the outside atmosphere.
Description
Technical Field
The invention belongs to the technical field of fresh air systems, and particularly relates to an exhaust system with a buffering function.
Background
In the indoor dirty air pumping and exhausting system of buildings, especially civil buildings, if a method that the return air pipes of dirty air in each room are directly communicated with the air exhaust fan air suction ports corresponding to the negative pressure cavities is adopted, the air pipe layout of the tree root-shaped air exhaust system is caused, the branch return air pipes from each room are more, the pipeline length and the resistance are large, and the connection installation of the air exhaust fan air suction ports corresponding to the negative pressure cavities and the return air pipe orifices from each room is very complicated, please refer to fig. 1.
The main body of a civil building is a house. The story height of civil buildings is lower, is usually < 3m, and the space that is used for installing the exhaust duct between ceiling and the furred ceiling is very narrow, still has the space interference of exhaust pipe and ceiling below concrete beam: if the air pipe penetrates through the cross beam, the strength of the cross beam and the safety of a building structure are influenced when the pipe diameter of the air pipe exceeds 90mm because the sagging height of the cross beam of the civil building is usually less than or equal to 250 mm; if the air pipe does not penetrate through the cross beam but spans from the lower part of the beam by using the lintel device, the air pipe occupies too much space resource and blocks the arrangement and installation construction of pipelines such as a fluorine road waterway circuit and the like.
How to set up the tuber pipe of the two-way flow new trend replacement system in the civil building furred ceiling of limited floor height (< 3m) and crossbeam vertically and horizontally staggered, it is a big difficult problem of the warm logical trade of air conditioner.
Disclosure of Invention
In order to solve the problems, the invention provides an exhaust system with a buffer function, which is suitable for room groups in a building, wherein the exhaust system comprises a central air pipe and an exhaust module, and return air pipes of a plurality of rooms are connected with the central air pipe; the central air pipe is connected with the air suction port of the air exhaust fan through at least one rear end air pipe, and the air exhaust port of the air exhaust module is communicated with the outside atmosphere.
Preferably, the diameter of the central air duct is not smaller than that of the return air duct of each room.
Preferably, the rear air duct is connected with the waist part of the central air duct; and the return air pipes of the rooms are distributed at two ends of the central air pipe.
Preferably, the central air ducts are tiled.
Preferably, the return ducts of the rooms are connected with the exhaust inlets of the exhaust module.
Preferably, the room return air duct connected to the air suction opening of the air exhaust module is closer to the air exhaust module than the central air duct.
Preferably, the central air duct passes through the cross member.
Preferably, the central air duct comprises a first air duct section and a second air duct section which are distributed on two sides of the cross beam, the first air duct section and the second air duct section are connected through at least two thin tubes, and the thin tubes penetrate through the cross beam respectively.
Preferably, the central air duct comprises a first air duct section and a second air duct section which are distributed on two sides of the cross beam, and the first air duct section and the second air duct section are connected through a beam passing device which crosses under the cross beam.
Compared with the prior art, the invention has the following technical effects:
the contradiction that the return air pipes at the air suction inlet of the air exhaust module are too concentrated is dispersed
The invention disperses the access ports of the return air pipes with small diameters of each room at the two ends of the central air pipe by arranging the central air pipe, solves the problems of more return air branch pipes from each room, long pipelines with high resistance and over-centralized installation of the negative pressure cavity at the air exhaust module air exhaust port and the pipe orifices of the return air pipes of a plurality of rooms, disperses the contradiction that the return air pipes of each room are converged at the air exhaust module air exhaust port, and resolves the difficult-to-implement tree root-shaped air pipe layout of the air exhaust system.
Secondly, a network-shaped exhaust system is constructed to reduce the wind speed and the on-way resistance
The invention constructs a network-shaped exhaust system pipeline, has the characteristics of a cross-bar network, can maximally transfer pipeline resources between an air flow inlet and an air flow outlet, and has excellent buffering characteristic and operation elasticity; the back-end air pipes are all called no matter the number of the return air pipes put into the actual running room; meanwhile, the embodiment greatly exerts the characteristics of entering at two ends of the air flow of the central air pipe, buffering and decelerating, collecting and discharging at the waist part, and implements a 'two-way parallel' mode; compared with the air pipe layout of a tree root-shaped exhaust system, the invention has the advantages of more pipeline resources, large total cross section area of pipelines participating in circulation, good buffer characteristic, small air flow speed, reduced on-way resistance and saved exhaust energy consumption during operation.
Thirdly, the difficulty of crossing the cross beam by the central air duct is reduced
The central air pipe is adopted as an air exhaust system of the middle buffer cavity, the air exhaust module can be arranged far away from the central air pipe, and an air exhaust port of the air exhaust module can be communicated with an air outlet at the waist part of the central air pipe through a group of small-diameter air pipes traversing the cross beam; the rear-end air pipe adopts a group of small-diameter air pipes, so that the total sectional area of the rear-end air pipes is kept, the wind speed and wind resistance are reduced, the influence on the distribution of stirrups of main reinforcements in the cross beam is reduced, the strength of the cross beam is ensured, and the difficulty of crossing the cross beam by the air pipes is reduced.
Of course, it is not necessary for any product to practice the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic view of the air duct layout of a conventional "tree-root" exhaust system;
fig. 2 is a schematic structural diagram of an exhaust system with a buffering function according to embodiment 1 of the present invention;
fig. 3 is an operation diagram of an exhaust system with a buffering function according to embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of an exhaust system with a buffering function according to embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of an exhaust system with a buffering function according to embodiment 3 of the present invention.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the invention.
Example 1
Referring to fig. 2 and 3, a ventilating system with a buffering function is suitable for a room group in a building, wherein the room group comprises a plurality of rooms.
The air exhaust system comprises a central air pipe 3 and an air exhaust module 2, and the return air pipes 4 of all the rooms are connected with the central air pipe 3; the exhaust inlet of the exhaust module 2 is connected with the central air pipe 3 through at least one rear-end air pipe 5, and the exhaust outlet of the exhaust module 2 is communicated with the outside.
In this embodiment, the central air duct 3 is laid (not bent or curled) above the room group, the diameter of the central air duct 3 is not less than the diameter of the return air duct 4 of each room, and the diameter of the rear air duct 5 is not greater than the diameter of the central air duct 3.
In this embodiment, there is no limitation on which room the central air duct 3 and the air exhaust module 2 are specifically arranged in a room group in a building, for example, the central air duct 3 and the air exhaust module 2 may be arranged in a kitchen, a balcony, a toilet, a bedroom, a storage room, a living room, etc., taking as an example that the air exhaust module 2 is arranged in a kitchen and the central air duct 3 is arranged in a passageway, since a cross beam is arranged between the kitchen and the passageway, the cross beam is required to be penetrated by the rear end air duct 5 for communicating the central air duct 3 and the air exhaust module 2, if only one rear end air duct 5 is arranged between the air exhaust module 2 and the central air duct 3, the diameter of the rear end air duct 5 is relatively large, and a hole formed in the corresponding cross beam for the rear end air duct 5 to penetrate is relatively large, so that the integrity and strength of the cross beam are damaged. Therefore, in this embodiment, it is preferable that the exhaust module 2 and the central air duct 3 are connected by two or more thin rear-end air ducts 5 with smaller diameters, and correspondingly, the cross beam is provided with a plurality of small holes adapted to the plurality of thin rear-end air ducts 5, and the plurality of thin rear-end air ducts 5 pass through the plurality of small holes respectively. Specifically, two or more air suction openings are arranged on the air exhaust module 2, and each air suction opening is connected with the central air pipe 3 through a rear end air pipe 5.
If the air exhaust module 2 is arranged in a room with an outer wall, an air outlet of the air exhaust module 2 is communicated with the outside through the air exhaust pipe 1.
In this embodiment, the number of the exhaust ducts 1 is not limited, and may be one or more. Since the exhaust module 2 is disposed in the building, the exhaust duct 1 penetrates the outer wall of the building. If the air outlet of the air exhaust module 2 is communicated with the outside only through one air exhaust pipe 1, a hole with a larger caliber for the air exhaust pipe 1 to pass through is required to be formed in the outer wall of the building, and therefore the integrity and the strength of the outer wall can be damaged. Therefore, in the present embodiment, it is preferable that a plurality of thin-diameter exhaust pipes 1, that is, two or more exhaust ports are provided on the exhaust module 2, and each exhaust port is respectively communicated with the outside through one thin-diameter exhaust pipe 1.
The return air ducts 4 of each room can be distributed at any position of the central air duct 3, and preferably, the rear end air duct 5 is connected with the waist of the central air duct 3; the return air ducts 4 of the rooms are distributed at two ends of the central air duct 3, and two ends of the central air duct 3, namely two ends of the central air duct 3, respectively reach pipe sections between waist parts, namely two sides of the waist part of the central air duct 3.
The ventilation module 2 is a conventional technical means in the art, and therefore, the present embodiment does not limit the specific configuration of the ventilation module 2. In the present embodiment, the exhaust module 2 includes an exhaust fan. When the exhaust system is in operation, the exhaust fan is started, the exhausted dirty air generates negative pressure at the exhaust inlet, and then the negative pressure is generated in the inner cavity of the central air pipe 3 through the rear-end air pipe 5 connected with the exhaust inlet, so that the front-end small-diameter dirty air return pipe 4 is pulled to continuously suck dirty air from each room; dirty air in each room is continuously sucked by the air return pipes 4, enters the central air pipes 3 from two ends of the central air pipes 3, is buffered, decelerated and reduced in resistance in the central air pipes 3, flows to the air outlets of the central air pipes 3 from two ends of the central air pipes 3 to the waist in opposite directions, is collected, and then flows into the rear end air pipes 5 to enter the exhaust fan to be discharged outside.
Compared with the prior art, the embodiment achieves the following technical effects:
the contradiction that the return air pipes at the air suction openings of the air exhaust modules are too concentrated is dispersed
In the embodiment, by arranging the central air pipe, the inlets of the small-diameter return air pipes in each room are dispersed at two ends of the central air pipe, so that the difficult problems that return air branch pipes from each room are multiple, the pipelines are long and have high resistance, and the negative pressure cavity of the exhaust module air suction inlet is connected and installed with the pipe orifices of the return air pipes in the rooms too intensively and complexly are solved, the contradiction that the return air pipes in each room are collected at the exhaust module air suction inlet is dispersed, and the tree root-shaped air pipe layout of the exhaust system which is difficult to implement is resolved.
Secondly, a network-shaped exhaust system is constructed to reduce the wind speed and the on-way resistance
The network-shaped exhaust system pipeline is constructed in the embodiment, has the characteristics of a longitudinal and transverse pipe network, can maximally call pipeline resources between the air inlet and the air outlet, and has excellent buffering characteristics and operation elasticity; the back-end air pipes are all called no matter the number of the return air pipes put into the actual running room; meanwhile, the embodiment greatly exerts the characteristics of entering at two ends of the air flow of the central air pipe, buffering and decelerating, waist collecting and discharging, and implements a 'two-way parallel' mode; compared with the air pipe layout of a tree-root-shaped exhaust system, the air pipe layout has the advantages that during operation, more pipeline resources are imposed, the total cross section area of the pipelines participating in circulation is large, the buffering characteristic is good, the air flow speed is low, the on-way resistance is reduced, and the exhaust energy consumption is saved.
Thirdly, the difficulty of crossing the cross beam by the central air duct is reduced
In the embodiment, the central air pipe is used as an exhaust system of the middle buffer cavity, the exhaust module can be arranged far away from the central air pipe, and an exhaust inlet of the exhaust module can be communicated with an air outlet at the waist part of the central air pipe through a group of small-diameter air pipes traversing the cross beam; the rear-end air pipe adopts a group of small-diameter air pipes, so that the total sectional area of the rear-end air pipes is kept, the wind speed and wind resistance are reduced, the influence on the distribution of stirrups of main reinforcements in the cross beam is reduced, the strength of the cross beam is ensured, and the difficulty of crossing the cross beam by the air pipes is reduced.
Example 2
This embodiment is a further improvement on embodiment 1. Referring to fig. 4, in the present embodiment, the air return ducts 4 of a part of the rooms are communicated with the central air duct 3, and the air return ducts 4 'of a part of the rooms are communicated with the air suction ports of the air exhaust module 2, that is, the air exhaust module 2 is further provided with a plurality of air suction ports connected with the air return ducts 4' of a plurality of the rooms.
Specifically, if the distance from the return air duct of a room to the central air duct 3 is longer than the distance from the return air duct to the exhaust module 2, the return air duct 4' of the room is communicated with the exhaust module 2; if the return air ducts of a room are closer to the central air duct 3 than to the exhaust air module 2, the return air ducts 4 of that room communicate with the central air duct 3. Therefore, the air return bypassing distance of the room is reduced, and the cost of the air return pipe 4 is also reduced.
Example 3
This embodiment is a further improvement on embodiment 1. Referring to fig. 5, in the present embodiment, the central air duct 3 needs to pass through the cross beam 6. Due to the large diameter of the central air duct 3, a large hole is provided in the cross beam 6 if the cross beam 6 is passed directly through, which may destroy the integrity and strength of the cross beam 6. Therefore, in this embodiment, the central air duct 3 is divided into the first air duct section 31 and the second air duct section 32 which are distributed on both sides of the cross beam 6, the first air duct section 31 and the second air duct section 32 are connected through at least two tubules 7, the tubules 7 respectively penetrate through the cross beam 6, and both ends of the tubules 7 are respectively communicated with the first air duct section 31 and the second air duct section 32. Therefore, only a plurality of small holes corresponding to the thin tubes 7 are required to be formed on the cross beam 6, and the influence on the cross beam 6 is not great.
Example 4
This example is a further improvement on example 1. In this embodiment, the central air duct 3 needs to span the cross-beam, i.e. the central air duct 3 performs an under-beam crossing by means of a lintel.
Specifically, the central air duct 3 includes an air duct section i and an air duct section ii distributed on both sides of the cross beam, and the air duct section i and the air duct section ii are connected by a lintel device spanning under the beam.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. An exhaust system with a buffering function is suitable for room groups in a building and is characterized in that the exhaust system comprises a central air pipe and an exhaust module, and return air pipes of a plurality of rooms are connected with the central air pipe; the central air pipe is connected with the air suction port of the air exhaust fan through at least one rear end air pipe, and the air exhaust port of the air exhaust module is communicated with the outside atmosphere.
2. The exhaust system with buffering function as claimed in claim 1, wherein the diameter of the central air duct is not smaller than the diameter of the return air duct of each room.
3. The exhaust system with the buffering function as claimed in claim 1, wherein the rear air duct is connected with a waist portion of the central air duct; and the return air pipes of the rooms are distributed at two ends of the central air pipe.
4. The exhaust system with buffer function of claim 1, wherein the central air duct is tiled.
5. The exhaust system with buffer function of claim 1, wherein the return air pipes of several rooms are connected with the suction openings of the exhaust module.
6. The exhaust system with buffering function according to claim 5, wherein the room return duct connected to the suction opening of the exhaust module is closer to the exhaust module than the central duct.
7. The exhaust system with buffering function according to claim 1, wherein said central air duct passes through said cross member.
8. The exhaust system with the buffering function according to claim 7, wherein the central air duct comprises a first air duct section and a second air duct section which are distributed on two sides of the cross beam, the first air duct section and the second air duct section are connected through at least two thin tubes, and the thin tubes respectively penetrate through the cross beam.
9. The exhaust system with the buffering function according to claim 1, wherein the central air duct comprises a first air duct section and a second air duct section which are distributed on two sides of the cross beam, and the first air duct section and the second air duct section are connected through a beam passing device which spans under the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210416596.8A CN114777257A (en) | 2022-04-20 | 2022-04-20 | Exhaust system with buffer function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210416596.8A CN114777257A (en) | 2022-04-20 | 2022-04-20 | Exhaust system with buffer function |
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| Publication Number | Publication Date |
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| CN114777257A true CN114777257A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210416596.8A Pending CN114777257A (en) | 2022-04-20 | 2022-04-20 | Exhaust system with buffer function |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775671A (en) * | 2018-06-12 | 2018-11-09 | 浙江同正管道技术有限公司 | A kind of house ornamentation fresh air pipeline system |
| CN210463442U (en) * | 2019-09-26 | 2020-05-05 | 山西三洋制冷服务有限公司 | Fresh air circulating system |
| CN112268333A (en) * | 2020-10-22 | 2021-01-26 | 上海伯涵热能科技有限公司 | Adopt pressure wind formula new trend system that door was aired exhaust |
| CN113685939A (en) * | 2021-08-17 | 2021-11-23 | 上海伯涵热能科技有限公司 | Whole house fresh air system utilizing exhaust module to form negative pressure functional area |
| CN113685938A (en) * | 2021-08-17 | 2021-11-23 | 上海伯涵热能科技有限公司 | Exhaust module and whole-house regional fresh air replacement system |
-
2022
- 2022-04-20 CN CN202210416596.8A patent/CN114777257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775671A (en) * | 2018-06-12 | 2018-11-09 | 浙江同正管道技术有限公司 | A kind of house ornamentation fresh air pipeline system |
| CN210463442U (en) * | 2019-09-26 | 2020-05-05 | 山西三洋制冷服务有限公司 | Fresh air circulating system |
| CN112268333A (en) * | 2020-10-22 | 2021-01-26 | 上海伯涵热能科技有限公司 | Adopt pressure wind formula new trend system that door was aired exhaust |
| CN113685939A (en) * | 2021-08-17 | 2021-11-23 | 上海伯涵热能科技有限公司 | Whole house fresh air system utilizing exhaust module to form negative pressure functional area |
| CN113685938A (en) * | 2021-08-17 | 2021-11-23 | 上海伯涵热能科技有限公司 | Exhaust module and whole-house regional fresh air replacement system |
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