CN102587623A - Variable-pressure main-branch type fireproof smoke exhaust pipeline - Google Patents
Variable-pressure main-branch type fireproof smoke exhaust pipeline Download PDFInfo
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- CN102587623A CN102587623A CN2012100587929A CN201210058792A CN102587623A CN 102587623 A CN102587623 A CN 102587623A CN 2012100587929 A CN2012100587929 A CN 2012100587929A CN 201210058792 A CN201210058792 A CN 201210058792A CN 102587623 A CN102587623 A CN 102587623A
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Abstract
The invention discloses a variable-pressure main-branch type fireproof smoke exhaust pipeline, comprising a plurality of sections of branch pipelines, wherein the branch pipelines are connected end to end to form a main pipeline in vertical direction; each branch pipeline comprises a main passage, a flow guiding branch passage and an air inlet; wherein the main passages and the flow guiding branch passages are formed by being separated by walls of the flow guiding branch passages; the flow guiding branch passages are communicated with a room through the air inlet; the flow guiding branch passages which are arranged at the upper parts of the branch pipelines are called as upper flow guiding branch passages; and the upper flow guiding branch passages are semi-enclosed exhaust passages which are opened at the upper end, closed at the lower end and surrounded by the walls of the flow guiding branch passages and the wall of one side of the main pipeline. According to the variable-pressure main-branch type fireproof smoke exhaust pipeline, the flow sections of the flow guiding branch passages are small, and the flow section of the main pipeline is increased to ensure that smoke can smoothly flows out; and the flow guiding branch passages are divided into an upper segment and a lower segment, therefore, through the connection of flow guiding branch passages on the upper floor and lower floor, thereby meeting the structure design of the floors and according with the length requirements of the flow guiding branch passages of the smoke exhaust pipeline in national fire codes are also s.
Description
Technical field
The present invention relates to a kind of kitchen, washroom flue gas exhaust pipeline, be specifically related to a kind of transformation type master and prop up formula fire and smoke exhaust feed channel.
Background technology
Existing fire and smoke exhaust feed channel comprises mixes the prefabricated and combined type two big classes of earth; Wherein mixing the earth prefabricated is in moulding form, to inject earlier mortar; Process after smearing one deck mortar by artificial again, smear layer thickness can not get effective control, causes it in uneven thickness.Mix the earth prefabricated and mainly contain pressure swing type, a main formula, empty cartridge type.The fire and smoke exhaust feed channel of pressure swing type; Variable-pressure plate adopts the thin-walled mortar to process, and in the process of carrying and installation, comes off easily, falls in pipeline line clogging; Cause that manifold pressure is excessive, exhaust is obstructed; And variable-pressure plate is fixedly connected, and can not regulate the angle of itself and sidewall according to the floor of differing heights, do specific prefabricated; The fire and smoke exhaust feed channel of a main formula is to adopt the thin-walled mortar to process, and the back is installed isolates main stem and the baffle plate of by-path and the junction poor sealing of main stem wall body, and by-path is leaked gas easily, causes the main stem internal pressure excessive; And the air-flow of the air inlet port smoke discharging of the fire and smoke exhaust feed channel of empty cartridge type and lower floor's flue gas stream form the circulation of air curtain and vortes interference gas when meeting.Mix earth prefabricated fire and smoke exhaust feed channel and also exist its anti-soft impulse and vertical bearing capacity not to reach national standard, and inner wall coarse is prone to the problem that grease makes that fire endurance reduces.
Combined type fire and smoke exhaust feed channel is to make sheet material with fire proofing material by corresponding specification earlier, and assembly unit forms in the floor at the scene again.Like publication number is the Chinese utility model patent of CN2573608Y; It comprises flue collector, auxillary flue and air inlet port; Flue collector and a plurality of and corresponding auxillary flue in room are separated through a dividing plate in the vertical flue of integral body; Auxillary flue communicates with the room through air inlet port, and the dividing plate on each auxillary flue top is provided with the cavity that communicates with flue collector, is provided with the flue gas guide strip that a plurality of and each corresponding and sectional area in cavity are arcuation in the flue collector.When flue gas discharge capacity is not very big, can make the smooth and easy discharge of flue gas, but when flue gas discharge capacity is big; Because auxillary flue has taken the bigger circulating face of flue collector; Make that the circulating face of flue collector is less, flue gas can not smooth and easyly be discharged, and influences the indoor air ambient of user; In addition, it is on the dividing plate of auxillary flue, to offer the discharging that the cavity utilizes guide strip guiding flue gas again, and guide strip has also reduced the flue gas circulating face of flue collector simultaneously.Also have for reinforce after the shaping flue usually in the inwall upper edge of flue inwall set up internal mold, be that the flue gas circulating face reduces but the internal mold of setting up makes the cross section of passage, hindered the circulation of flue gas; And in use; The nailing that is used for fixing internal mold is got rusty by infecting very easily of grease, and internal mold is loose or come off its fastening force reduction or inefficacy; Make the pipeline vertical bearing capacity reduce, security performance can not get ensureing.
Summary of the invention
It is big that technical problem to be solved by this invention provides a kind of main stem flow area, and the transformation type master of even tube wall props up formula fire and smoke exhaust feed channel.
For solving the problems of the technologies described above; The transformation type master of the present invention's design props up formula fire and smoke exhaust feed channel; Comprise the multistage subtube, this subtube dock from beginning to end form vertically to total pipeline, said every section subtube includes main stem, water conservancy diversion by-path and air inlet port; Main stem and water conservancy diversion by-path are separated through water conservancy diversion by-path wall body; The water conservancy diversion by-path communicates with the room through air inlet port, and said water conservancy diversion by-path is located at subtube top and is called the water conservancy diversion by-path, and water conservancy diversion by-path is the open upper end that is surrounded by water conservancy diversion by-path wall body and main stem one side sidewall, the semiclosed exhaust passage of lower end closed on this.Flue gas in every floor room flows to upward water conservancy diversion by-path from air inlet port, flows on the high first floor main stem again, and the flue gas in every floor room is not always the case, and converges to from level to level in the main stem, is discharged in the atmosphere at last.Because the water conservancy diversion by-path only supplies the flue gas circulation of one deck building; Need not too big; The square semiclosed exhaust passage that the water conservancy diversion by-path can be surrounded by the part of water conservancy diversion by-path wall body, bottom water conservancy diversion branch passage wall body and the main stem one side sidewall of three sides; The shapes such as the semiclosed exhaust passage of triangular prism that also can surround by the part of water conservancy diversion by-path wall body, bottom water conservancy diversion branch passage wall body and the main stem one side sidewall of two sides, the design of such water conservancy diversion by-path had both guaranteed the circulation of water conservancy diversion by-path flue gas; Make that again the flue gas flow area of main stem is enough big, guaranteed the smooth and easy circulation of flue gas in the main stem.When opening smoke exhaust ventilator or exhaust fan, valve is opened in gas shock, can induce the residual air in lower floor's pipeline upwards to discharge through the upwards directed jet that forms of water conservancy diversion by-path; When a plurality of smoke exhaust ventilators or exhaust fan unlatching; The jet that forms through the water conservancy diversion by-path forms multiply relay jet, and air upwards forms the impact type air-flow in the main stem, and the normal pressure in the water conservancy diversion by-path reduces; Even can form negative pressure, solved the problem of smoke blowing taint of odour.Fire and smoke exhaust feed channel of the present invention is to carry out sheet material in advance, and on-the-spot the installation is shaped, and made things convenient for carrying, and safety is improved.
In order to make the air guide better effects if of water conservancy diversion by-path, the said water conservancy diversion by-path bottom wall body of going up can be the inclined-plane on being tilted to.
In order to be easier to reach in the NFA standard requirement that the water conservancy diversion by-path of flue gas exhaust pipeline is required to be longer than 600mm; Reach the setting that takes into account air inlet port in the floor room simultaneously; Said water conservancy diversion by-path can also comprise the following water conservancy diversion by-path that is located at the subtube bottom, this time water conservancy diversion by-path perforation exhaust passage that water conservancy diversion by-path wall body and main stem one side sidewall surround of serving as reasons down; Following water conservancy diversion by-path is located at water conservancy diversion by-path lower end, and the lower end of following water conservancy diversion by-path extends to the subtube bottom always; Last water conservancy diversion by-path upper end extends to subtube top always.Such design; Splicing through last water conservancy diversion by-path between two floors and following water conservancy diversion by-path; Be easier to realize in the NFA standard length requirement to the water conservancy diversion by-path of flue gas exhaust pipeline; And the water conservancy diversion better effects if, flue gas can flow in the main stem more smoothly, can not cause the obstruction of water conservancy diversion by-path flue gas.
Such scheme is said can be provided with acclivitous variable-pressure plate on the main stem sidewall at the height place relative with last water conservancy diversion by-path, this variable-pressure plate is the structure of itself and main stem sidewall adjustable included angle.Variable-pressure plate can be located on each sidewall of main stem, and in order to be more conducive to the discharging of flue gas, said variable-pressure plate preferably is located on the main stem sidewall relative with by-path.Variable-pressure plate can be regulated itself and the corner dimension of main stem sidewall through mode commonly used, passes through screw rod like variable-pressure plate and is connected with the main stem sidewall, fixes through nut.Can realize adjusting through the position of adjusting screw(rod), and then regulate main stem cross section size the angle of variable-pressure plate and main stem sidewall.Generally, subtube dock from beginning to end form vertically to total pipeline on, from top to bottom, the angle of variable-pressure plate and main stem sidewall reduces gradually, the main stem of whole piece total pipeline forms similar taper, is more conducive to the discharging of flue gas.
Such scheme is said can be provided with the L shaped reinforcement angle bead that the two side is fixing at each inboard place, angle of main stem.Said reinforcement angle bead preferably all is provided with in the different places of main stem interior angle.
Said each place, angle in the main stem outside of such scheme can be provided with the stratiform cornerite net that prevents that subtube from splitting, and this cornerite net is coated to the another side from a side of main stem.The cornerite net preferably extends to the bottom always from main stem top.
The said subtube outer wall of such scheme can be provided with the restraint zone that one or more firmly hold subtube.This restraint zone is preferably 3, holds respectively on the upper, middle and lower of subtube outer wall.
For the seal that makes flue gas exhaust pipeline better, the junction between said subtube can floor for every floor in.
The said subtube of such scheme is processed by glass magnesium PLASTIC LAMINATED or inorganic PLASTIC LAMINATED.
Compared with prior art, the present invention has the following advantages:
1, the flow area of water conservancy diversion by-path is little, has increased the flow area of main stem, and flue gas can be discharged smoothly;
2, the water conservancy diversion by-path is divided into two sections, through the up and down connection of floor water conservancy diversion by-path, makes its structure design that both can satisfy floor, meets in the NFA standard length requirement to the water conservancy diversion by-path of flue gas exhaust pipeline again;
3, the adjustable included angle of variable-pressure plate and main stem sidewall joint makes the main stem of whole piece total pipeline form similar taper, is more conducive to the discharging of flue gas;
4, the reinforcement angle bead that is provided with of main stem interior angle in reinforcing pipes, can not influence the flow area of main stem;
5, the cornerite net that is provided with of main stem exterior angle can prevent the cracking of pipeline to have strengthened the safety of using;
6, the present invention makes sheet material in advance, and the later stage is installed shaping till now, has reduced cost of transportation, and installation effectiveness is high, safe ready.
Description of drawings
Fig. 1 props up the subtube structural representation of formula fire and smoke exhaust feed channel for transformation type master of the present invention;
Fig. 2 props up the subtube sectional view of formula fire and smoke exhaust feed channel for transformation type master of the present invention.
Label is among the figure: 1, subtube; 2, main stem; 3, go up the water conservancy diversion by-path; 4, following water conservancy diversion by-path; 5, air inlet port; 6, strengthen angle bead; 7, cornerite net; 8, variable-pressure plate; 9, restraint zone.
The specific embodiment
As shown in Figure 1, transformation type master of the present invention props up formula fire and smoke exhaust feed channel, comprises multistage subtube 1; Said subtube 1 is processed by glass magnesium PLASTIC LAMINATED, the butt joint of subtube 1 head and the tail form vertically to total pipeline, said every section subtube 1 includes main stem 2, water conservancy diversion by-path and air inlet port 5; Main stem 2 is separated through water conservancy diversion by-path wall body with the water conservancy diversion by-path; The water conservancy diversion by-path communicates with the room through air inlet port 5, and said water conservancy diversion by-path is divided into two sections, is respectively water conservancy diversion by-path 3 and following water conservancy diversion by-path 4; Wherein go up water conservancy diversion by-path 3 and be located at subtube 1 top; Said air inlet port 5 is located on the water conservancy diversion by-path 3, and water conservancy diversion by-path 3 is the open upper end that is surrounded by water conservancy diversion by-path wall body and main stem 2 one side sidewalls, the semiclosed exhaust passage of lower end closed in air inlet port 5 places, and said upward water conservancy diversion by-path 3 bottom wall bodies are the inclined-plane that is tilted to.Said down water conservancy diversion by-path 4 is located at the bottom of water conservancy diversion by-path 3, this time water conservancy diversion by-path 4 perforation exhaust passage that water conservancy diversion by-path 4 wall bodies and main stem 2 one side sidewalls surround of serving as reasons down; The upper end of following water conservancy diversion by-path 4 is separated with following water conservancy diversion by-path 4 lower ends, and the lower end of following water conservancy diversion by-path 4 extends to subtube 1 bottom always; Last water conservancy diversion by-path 3 upper ends extend to subtube 1 top always.
As shown in Figure 2,2 each inboard place, angle are provided with the L shaped reinforcement angle bead 6 that the two side is fixing at main stem.Upper and lower at each inboard place, angles of main stem 2 is provided with in order to the fixing L shaped reinforcement angle bead 6 of subtube 1 respectively, and 2 limits of this reinforcement angle bead 6 are separately fixed on 2 limits at each angle, main stem 2 inboard.Each place, angle in main stem 2 outsides is provided with the stratiform cornerite net 7 that prevents that subtube 1 from splitting, and this cornerite net 7 is coated to the another side from a side of main stem 2, and is coated to top, main stem 2 exterior angle from main stem 2 tops always.In order to reinforce subtube 1, be with 3 restraint zones 9 outside the subtube 1, it is enclosed within top, middle part and the bottom of subtube 1 respectively.
On main stem 2 sidewalls relative and the height place relative with last water conservancy diversion by-path 3 with by-path, be provided with acclivitous variable-pressure plate 8, this variable-pressure plate 8 is the structure of itself and main stem 2 sidewall adjustable included angle.Variable-pressure plate 8 is connected with main stem 2 sidewalls through screw rod, fixes through nut, can realize the adjusting of variable-pressure plate 8 through the position of adjusting screw(rod) with main stem 2 sidewall angles, and then the size of regulating main stem 2 flow areas.After installing pipeline, the butt joint of subtube 1 head and the tail form vertically to total pipeline, from bottom to up, variable-pressure plate 8 reduces with the angle of main stem 2 sidewalls gradually in total pipeline, the main stem 2 of whole piece total pipeline forms similar taper, is more conducive to the discharging of flue gas.
On air inlet port 5, be provided with fire-preventing check valve, be provided with temperature pick up in this fire-preventing check valve, when opening smoke exhaust ventilator or exhaust fan, fire-preventing check valve is opened automatically, makes flue gas flow direction water conservancy diversion by-path; When closing smoke exhaust ventilator or exhaust fan, fire-preventing check valve is closed automatically; Or when breaking out of fire, fire-preventing check valve is closed automatically, cuts off pyrotechnics, prevents fire spread.
When opening smoke exhaust ventilator or exhaust fan, valve is opened in gas shock, utilizes the aerodynamics Bernoulli equation; Can induce the residual air in lower floor's pipeline upwards to discharge through the upwards directed jet that forms of water conservancy diversion by-path, when a plurality of smoke exhaust ventilators or exhaust fan were opened, the jet that forms through the water conservancy diversion by-path formed multiply relay jet; Air upwards forms the impact type air-flow in the main stem 2; Normal pressure in the water conservancy diversion by-path reduces, even can form negative pressure, has solved the problem of smoke blowing taint of odour.
Fire and smoke exhaust feed channel of the present invention is to carry out sheet material in advance, and on-the-spot installation is shaped.When mounted; Complete a sidewall of main stem 2 earlier, this sidewall also is simultaneously the sidewall that constitutes the water conservancy diversion by-path, one side will strengthen then on the said sidewall of being fixed on of angle bead 6; On this sidewall, coat the inorganic fire bonding agent again, sidewall that will be adjacent with this sidewall is bonding firm; To go up water conservancy diversion by-path 3 then and assemble respectively with following water conservancy diversion by-path 4, will go up water conservancy diversion by-path 3 again and be fixed on main stem 2 tops, following water conservancy diversion by-path 4 is fixed on main stem 2 bottoms; Install an other sidewall of main stem 2 then, form the main stem 2 of column, and in main stem 2, be fixed with the water conservancy diversion by-path.It is fixing to strengthen angle bead 6 with all the other 2 at last; Each angle coats the cornerite net 7 of layer of glass fiber fabric in the outside of main stem 2; With the upper, middle and lower portion and the stickfast that are enclosed within main stem 2 outsides with metal restraint zone 9 respectively, be assembled into one section subtube 1 and be installed in one deck building, other floor mounting method is the same.The head and the tail butt joint in the floor of every floor of last subtube 1 form vertically to total pipeline.In the total pipeline, the last water conservancy diversion by-path 3 of the following water conservancy diversion by-path 4 of upper strata subtube 1 and lower floor subtube 1 links to each other and forms the water conservancy diversion by-path of length greater than 1000mm, realizes directional stream-guidance, meets in the NFA standard length requirement to the water conservancy diversion by-path of flue gas exhaust pipeline.
Claims (10)
1. transformation type master props up formula fire and smoke exhaust feed channel; Comprise multistage subtube (1); This subtube (1) head and the tail butt joint form vertically to total pipeline; Said every section subtube (1) includes main stem (2), water conservancy diversion by-path and air inlet port (5), and main stem (2) and water conservancy diversion by-path are separated through water conservancy diversion by-path wall body, and the water conservancy diversion by-path communicates with the room through air inlet port (5); It is characterized in that: said water conservancy diversion by-path is located at subtube (1) top and is called water conservancy diversion by-path (3), and water conservancy diversion by-path (3) is the open upper end that is surrounded by water conservancy diversion by-path wall body and main stem (2) one side sidewalls, the semiclosed exhaust passage of lower end closed on this.
2. transformation type master according to claim 1 props up formula fire and smoke exhaust feed channel, it is characterized in that: said upward water conservancy diversion by-path (3) bottom wall body is the inclined-plane that is tilted to.
3. transformation type master according to claim 1 props up formula fire and smoke exhaust feed channel; It is characterized in that: said water conservancy diversion by-path also comprises the following water conservancy diversion by-path (4) that is located at subtube (1) bottom, this time water conservancy diversion by-path (4) perforation exhaust passage that water conservancy diversion by-path (4) wall body and main stem (2) one side sidewalls surround of serving as reasons down; Following water conservancy diversion by-path (4) is located at water conservancy diversion by-path (3) lower end, and the lower end of following water conservancy diversion by-path (4) extends to subtube (1) bottom always; Last water conservancy diversion by-path (3) upper end extends to subtube (1) top always.
4. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3; It is characterized in that: on main stem (2) sidewall at the height place relative with last water conservancy diversion by-path (3); Be provided with acclivitous variable-pressure plate (8), this variable-pressure plate (8) is the structure of itself and main stem (2) sidewall adjustable included angle.
5. transformation type master according to claim 4 props up formula fire and smoke exhaust feed channel, it is characterized in that: said variable-pressure plate (8) is located on the main stem relative with by-path (2) sidewall.
6. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3, it is characterized in that: each angle place inboard at main stem (2) is provided with the L shaped reinforcement angle bead (6) that the two side is fixing.
7. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3; It is characterized in that: each place, angle in main stem (2) outside is provided with the stratiform cornerite net (7) that prevents that subtube (1) from splitting, and this cornerite net (7) is coated to the another side from a side of main stem (2).
8. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3, it is characterized in that: said subtube (1) outer wall is provided with one or more restraint zones (9) that subtube (1) is firmly held.
9. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3, it is characterized in that: the junction between said subtube (1) is in the floor of every floor.
10. prop up formula fire and smoke exhaust feed channel according to any described transformation type master of claim 1～3, it is characterized in that: said subtube (1) is processed by glass magnesium PLASTIC LAMINATED or inorganic PLASTIC LAMINATED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058792.9A CN102587623B (en) | 2012-03-08 | 2012-03-08 | Variable-pressure main-branch type fireproof smoke exhaust pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210058792.9A CN102587623B (en) | 2012-03-08 | 2012-03-08 | Variable-pressure main-branch type fireproof smoke exhaust pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102587623A true CN102587623A (en) | 2012-07-18 |
| CN102587623B CN102587623B (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210058792.9A Expired - Fee Related CN102587623B (en) | 2012-03-08 | 2012-03-08 | Variable-pressure main-branch type fireproof smoke exhaust pipeline |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866960A (en) * | 2014-03-10 | 2014-06-18 | 李士平 | Glass magnesium flat plate combined smoke gas exhaust passage |
| CN106245883A (en) * | 2016-10-17 | 2016-12-21 | 葛福祥 | Difunctional exhaust gas flue and installation and application thereof between house kitchen |
| CN110670844A (en) * | 2019-11-06 | 2020-01-10 | 葛福祥 | Natural ventilation smoke exhaust air flue for residential kitchen and toilet and use method thereof |
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| CN202544334U (en) * | 2012-03-08 | 2012-11-21 | 钦州兴旺烟道厂 | Voltage transformation type main and branch fireproof smoke exhaust pipeline |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103866960A (en) * | 2014-03-10 | 2014-06-18 | 李士平 | Glass magnesium flat plate combined smoke gas exhaust passage |
| CN106245883A (en) * | 2016-10-17 | 2016-12-21 | 葛福祥 | Difunctional exhaust gas flue and installation and application thereof between house kitchen |
| CN110670844A (en) * | 2019-11-06 | 2020-01-10 | 葛福祥 | Natural ventilation smoke exhaust air flue for residential kitchen and toilet and use method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102587623B (en) | 2014-06-11 |
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| SE01 | Entry into force of request for substantive examination | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20120718 Assignee: Wucheng Jinhua Wu Zhen smoke exhaust pipe factory Assignor: Qinzhou Xingwang Flue Factory Contract record no.: 2012450000094 Denomination of invention: Variable-pressure main-branch type fireproof smoke exhaust pipeline License type: Common License Record date: 20121217 |
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