CN207686752U - A kind of anti-flat high intensity negative pressure air duct system of suction - Google Patents
A kind of anti-flat high intensity negative pressure air duct system of suction Download PDFInfo
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- CN207686752U CN207686752U CN201721896113.XU CN201721896113U CN207686752U CN 207686752 U CN207686752 U CN 207686752U CN 201721896113 U CN201721896113 U CN 201721896113U CN 207686752 U CN207686752 U CN 207686752U
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Abstract
The utility model discloses a kind of anti-flat high intensity negative pressure air duct system of suction, which includes：Air duct, cylinder, several skeletons with base fabric material and several withhold component；For connecting each suspension parts for withholding component, the shape that air duct is suspended on to the shape and tunnel that are formed air duct on tunnel is consistent, i.e., air duct is formed with straightway and bending section；Counter-force component, including several drawstrings, wherein one end of each drawstring is connected on the skeleton of the bending section of air duct or/and is connected on the straightway skeleton that bending section air-flow flows into end, the other end is connected on tunnel；The direction of each drawstring is obliquely installed with respect to the axis of air duct and towards the direction of flow of air-flow.The negative pressure air duct system structure is simple, easy for installation, can be directed to tunnel when encountering the operating mode for needing air duct to be bent, and will not be drawn in use by stickiness power that downwind air-flow generates i.e. pulling force bad, can reach higher intensity, reliability is high.
Description
Technical field
It is the utility model is related to a kind of air duct system, more particularly to a kind of for operations such as coal mine, tunnel, subway engineerings
It is anti-to inhale flat high intensity negative pressure air duct system.
Background technology
Air duct refers to the distinguished and admirable pipeline flowed along certain orientation of guiding, for coal mine, tunnel, subway engineering, underground office
Portion guides the distinguished and admirable flexible duct flowed along certain orientation.According to the pressure difference inside and outside air duct cylinder, air duct is divided into positive pressure wind
Cylinder and negative pressure air duct；When positive pressure wind pipe refers to air duct work, the atmospheric pressure in cylinder is higher than the air duct of the outer atmospheric pressure of cylinder,
It is generally used for forced guiding ventilation；When negative pressure air duct refers to then air duct work, the atmospheric pressure in cylinder is less than in cylinder
Atmospheric pressure is generally used for pull-out type and is oriented to ventilation.
Current negative pressure air duct system, including cylinder, the wind turbine of connector drum, the barrel outer surface are externally provided with several gold
Belong to skeleton, tunnel roof is fixed on by retaining ring and expansion bolt on cylinder.If but existing negative pressure air duct is using metal
Material such as irony air duct, then its weight can be very heavy, in addition segmental structure is generally used, it is also number in mobile and connection
Tired, installation is extremely difficult, and cost is also higher.
For above-mentioned metal material air duct, material air duct flexible is used in tunnel at present, is greatly reduced
Weight, while also allowing for transporting and install, which has skeleton due to being flexible structure, interval, for air duct into
Row suspension, the negative pressure air duct when in use, air duct inner wall can by from downwind wind pulling force (i.e. air duct inner wall by
Viscous friction and the longitudinal force generated), when air duct is in horizontal straightened condition, the pulling force suffered by air duct inner wall is by bone
The power that the rigid structure of frame generates is offset, therefore the job stability of its air duct can be very good, but since conditions down-hole is multiple
It is miscellaneous, inevitably there is tunnel flat bank, slope and even needs the operating mode turned therefore encountering needs in perpendicular
The position of turning, the pulling force suffered by wind air duct inner wall can not be inconsistent by the support force direction of air duct skeleton, can not
It cancels out each other, while the negative pressure air duct, due to being bent, ventilation-sectional area is reduced, pressure increases suddenly, and the air duct part of the position is just located
It in " free state ", easy tos produce and is drawn bad phenomenon, and lead to not implement exhausting work.
By taking 800 negative pressure air ducts of Φ as an example：When air duct is pressed with lower negative pressure goaf negative pressure of suction generally in 2000-3000Pa
It is designed and calculates according to maximum value 5000Pa, the maximum pull value F=air ducts that air duct applies are cut along wind direction wind turbine
Area × wind turbine pressure, i.e.,：
F=0.4 × 0.4 × 3.14 × 5000=2512N are approximately equal to 256 kilograms.
The value of thrust that the air duct is subject to can destroy negative pressure air duct moment.
Therefore, when encountering the operating mode for needing air duct to be bent, negative pressure air duct was using in the letter above-mentioned tunnel that is directed to be solved
It is easy to be drawn bad phenomenon by the pulling force that downwind wind generates in journey.
Utility model content
When being mounted in tunnel the purpose of the utility model is to overcome the negative pressure air duct in the presence of the prior art, meeting
To air duct bending part is needed, which is easy to be drawn bad technology by the pulling force that downwind wind generates in use
Problem, and a kind of anti-flat high intensity negative pressure air duct system of suction is provided, structural strength height, negative pressure air duct system easy for assemble or unload
System.
In order to realize that above-mentioned purpose of utility model, the utility model provide following technical scheme：
A kind of anti-flat high intensity negative pressure air duct system of suction, including：
Air duct includes the cylinder of base fabric material, several skeletons on the cylinder withhold component with several；
Suspension parts, for connect it is each it is described withhold component, and the air duct is suspended on tunnel, makes the air duct
The shape of formation and the shape in tunnel are consistent, i.e., the described air duct formation includes the shape of straightway and bending section；
Counter-force component, including several drawstrings, wherein one end of each drawstring is connected to the bending section of the air duct
Skeleton on or/and be connected to positioned at bending section air-flow flow into end straightway skeleton on, the other end is connected on tunnel；Each
The direction of the drawstring is obliquely installed with respect to the axis of air duct, and towards the direction of flow of air-flow.
The negative pressure air duct system, including air duct and the suspension parts, the counter-force component, wherein suspension parts that are connected on air duct
For air duct to be suspended on tunnel, due to the tunnel of the shape adaptation curved shape of air duct, straightway and curved will include
Tune；And counter-force component be connected on air duct by several drawstrings, and by drawstring along air duct it is axially inclined setting and direction
The direction of flow of air-flow is connected on tunnel；Negative pressure air duct system described in the utility model, by hanging counter-force on air duct
Component, after capable of being passed through air-flow in air duct, when air-flow flows through the straightway of air duct, the stickiness power of the air-flow is by each on cylinder
The power of a skeleton and suspension parts is offset, which will not be deformed, and when air-flow flows through the bending section of air duct, although
The air duct ventilation-sectional area of the bending section is reduced, and pressure increases suddenly, but since air duct is equipped with counter-force component, the counter-force component
Drawstring can provide bending section the counter-force opposite with air flow direction, to offset the stickiness power that air-flow is generated in the bending section,
The cylinder of bending section is set to keep original state.
The negative pressure air duct system, it is simple in structure, easy for installation, tunnel can be directed to and encountering the operating mode for needing air duct to be bent
When, negative pressure air duct will not draw bad phenomenon, Neng Gouda by the stickiness power i.e. pulling force that downwind air-flow generates in use
To higher intensity, good reliability.
In addition, being needed using hard structure such as the bending cylinder using metal component material in tunnel bending position compared to existing
For cost that body is brought is higher, installation is inconvenient, by using negative pressure air duct system described in the utility model, i.e. flexible cylinder
Also it can adapt to use under the operating mode of winding roadway, wide adaptability.
Preferably, on the skeleton for the bending section that a part of drawstring is connected to the air duct in all drawstrings, another portion
Drawstring is divided to be connected on the straightway skeleton that bending section air-flow flows into end.
Preferably, a part of drawstring is connected to the roof position in tunnel, the connection of another part drawstring in all drawstrings
Sidewall locations in tunnel.
Preferably, each drawstring is equipped with stretcher, and stretcher is used to after drawstring connects air duct and tunnel, pass through
Stretcher can realize tensioning, and drawstring is made to produce certain prestressing force, can effectively reduce the deflection that air duct generates when in use, with
Maintain the shape of air duct.
Preferably, the bending section of the air duct is equipped with the tightening device so that the cylinder holding brake forming of bending section, receives
Tight device keeps the state of a brake forming convenient for the air duct of bending section, and avoiding the air-flow in air duct from changing leads to air duct shape
Become larger excessive, influences to use.
Preferably, the tightening device includes the steel wire rope for connecting all skeletons of bending section, steel wire rope one end connection
On the skeleton that bending section air-flow flows into end, the other end is connected on the skeleton of bending section air-flow outflow end, the steel wire rope
Stretcher is connected between both ends.
Preferably, the air duct includes that several air duct units are connected with each other, and the both ends of each air duct unit are equipped with
Connecting component, which can be realized by the structure of slide fastener and be connected, several air duct units are connected to form one
Whole air duct.
Preferably, each skeleton is set on the inside of the cylinder, and each skeleton, which passes through, withholds component, Mei Gesuo
It states skeleton and the component of withholding positioned at the cylinder inboard portion is covered with press strip cloth.
A kind of anti-construction method for inhaling flat high intensity negative pressure air duct system described in the utility model, includes the following steps：
Step 1: connection prepares, air duct is unfolded to form formation to be installed in tunnel according to the shape in tunnel, including
Straightway and bending section；
Step 2: installation suspension parts and counter-force component, the installation suspension parts on air duct, and in the cylinder of bending section
Several drawstrings and stretcher of upper installation counter-force component；
Step 3: air duct, is suspended on tunnel by installation air duct by the suspension parts；
Step 4: installation counter-force component, all drawstrings are connected on tunnel, wherein the direction of each drawstring
The axis of opposite air duct is obliquely installed, and towards the direction of flow of air-flow.
The construction method of the negative pressure air duct system, air duct is unfolded to be formed matched with the shape in tunnel first, then in wind
Suspension parts and counter-force component are connected on cylinder, wherein suspension parts are used to air duct being suspended on tunnel, and counter-force component is logical
It crosses several drawstrings to be connected on air duct, and drawstring is connected to along the axially inclined setting of air duct and towards the direction of flow of air-flow
On tunnel, air duct is suspended on tunnel by final realize, and by counter-force member tension；Negative pressure air duct system described in the utility model
System, should when air-flow flows through the straightway of air duct after capable of being passed through air-flow in air duct by hanging counter-force component on air duct
The stickiness power of air-flow is offset by the power of each skeleton and suspension parts on cylinder, which will not be deformed, and work as gas
When stream flows through the bending section of air duct, although the air duct ventilation-sectional area of the bending section is reduced, pressure increases suddenly, due on air duct
Equipped with counter-force component, the drawstring of the counter-force component can provide bending section the counter-force opposite with air flow direction, to offset gas
The stickiness power generated in the bending section is flowed, the cylinder of bending section is enable to keep original state.The construction method of the negative pressure air duct system,
It is simple to operate, tunnel can be directed to when encountering the operating mode for needing air duct to be bent, negative pressure air duct in use will not
Bad phenomenon, good reliability are drawn by the stickiness power i.e. pulling force that downwind air-flow generates.
It is further preferred that when the bending section of air duct is located at tunnel flat bank, in the external side of the arc tube of bending section
Several drawstrings are installed, each drawstring is equipped with stretcher；Tightening device, wherein institute are installed in side in the arc tube body of bending section
It includes the steel wire rope for being connected to bending section both ends to state tightening device, and two steel wire ropes connect in the oblique top of splayed shape
It is connected on the tunnel, each steel wire rope is equipped with stretcher.
It is further preferred that when the bending section of air duct is located at the turning of tunnel slope, all drawstrings of the counter-force component
It is connected on the skeleton of the cylinder for the straightway for flowing into end positioned at bending section air-flow, each drawstring is equipped with stretcher；
Tightening device is installed in side in the arc tube body of bending section, wherein the tightening device includes the steel for being connected to bending section both ends
Cord, two steel wire ropes are connected in the oblique top of splayed shape on the tunnel, and each steel wire rope is equipped with stretcher.
It is further preferred that when the bending section of air duct is located at tunnel and vertically turns, the counter-force component includes two drawings
Rope, one end of two drawstrings connect the bending section air-flow and flow on the skeleton bottom at end, and the other end of two drawstrings forms eight
Word shape is connected on tunnel, and each drawstring is equipped with stretcher；The side installation tightening dress in the arc tube body of bending section
It sets, the tightening device includes steel wire rope and the stretcher on steel wire rope, wherein the steel wire rope is by the skeleton of bending section
It links together, the steel wire rope is located at side in the arc tube body of bending section, and the suspension parts are connected to the arc of bending section
On the outside of cylinder.
Compared with prior art, the beneficial effects of the utility model：
1, a kind of negative pressure air duct system described in the utility model, including air duct and be connected on air duct suspension parts,
Counter-force component, wherein suspension parts are used to air duct being suspended on tunnel, due to the tunnel of the shape adaptation curved shape of air duct,
Therefore straightway and bending section be will include；And counter-force component is connected on air duct by several drawstrings, and by drawstring along wind
The axially inclined setting of cylinder is simultaneously connected to towards the direction of flow of air-flow on tunnel；Negative pressure air duct system described in the utility model,
By hanging counter-force component on air duct, after air-flow can be passed through in air duct, when air-flow flows through the straightway of air duct, the air-flow
Stickiness power offset by the power of each skeleton and suspension parts on cylinder, which will not be deformed, and work as air-flow stream
When bending section through air duct, although the air duct ventilation-sectional area of the bending section is reduced, pressure increases suddenly, since air duct is equipped with
The drawstring of counter-force component, the counter-force component can provide bending section the counter-force opposite with air flow direction, exist to offset air-flow
The stickiness power that the bending section generates, enables the cylinder of bending section to keep original state；The negative pressure air duct system, simple in structure, installation
It is convenient, tunnel can be directed to when encountering the operating mode for needing air duct to be bent, negative pressure air duct in use will not be by side with the wind
Stickiness power, that is, the pulling force generated to air-flow draws bad phenomenon, can reach higher intensity, good reliability；
2, a kind of negative pressure air duct system described in the utility model, is equipped with stretcher on each drawstring, and stretcher is used for
After drawstring connects air duct and tunnel, tensioning can be realized by stretcher, drawstring is made to produce certain prestressing force, can be effectively reduced
The deflection that air duct generates when in use, to maintain the shape of air duct；
3, a kind of negative pressure air duct system described in the utility model is equipped with the cylinder so that bending section in the bending section of air duct
The tightening device of brake forming, tightening device is kept to keep the state of a brake forming convenient for the air duct of bending section, avoid wind
Air-flow variation in cylinder causes air duct shape to become larger excessive and influence to use.
Description of the drawings：
Fig. 1 is a kind of structural schematic diagram of negative pressure air duct system described in the utility model；
Fig. 2 is the structural schematic diagram of air duct in Fig. 1；
Fig. 3 is the situation schematic diagram that 3 apoplexy cartridge system of the utility model embodiment is mounted on that tunnel is flat bank；
Fig. 4 is the situation schematic diagram that 4 apoplexy cartridge system of the utility model embodiment is mounted on that tunnel is slope turning；
It mounted on tunnel is the situation schematic diagram vertically turned that Fig. 5, which is 5 apoplexy cartridge system of the utility model embodiment,；
Fig. 6 is the right view of Fig. 5.
It is marked in figure：
1, air duct, 11, cylinder, 12, skeleton, 13, press strip cloth, 14, withhold component, 15, connecting component, 16, straightway,
17, bending section, 171, bending section air-flow flow into end, 172, bending section air-flow outflow end, 2, suspension parts, 21, head-rope, 22,
Anchor pole, 3, counter-force component, 31, drawstring, 32, stretcher, 33, steel wire rope, 34, fixed ring；4, tunnel, 5, irony air duct, 6, connect
Head.
Specific implementation mode
The utility model is described in further detail with reference to test example and specific implementation mode.But it should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the utility model content
Technology belongs to the scope of the utility model.
Embodiment 1
As shown in Figs. 1-2, a kind of anti-flat high intensity negative pressure air duct system of suction, including：
Air duct 1 includes the cylinder 11 of base fabric material, several skeletons 12 on the cylinder 11 are withheld with several
Component 14；
Suspension parts 2, for connect it is each it is described withhold component 14, and the air duct 1 is suspended on tunnel 4, makes institute
The shape and the shape in tunnel 4 for stating the formation of air duct 1 are consistent, i.e., the described formation of air duct 1 includes straightway 16 and bending section
17 shape；
Counter-force component 3, including several drawstrings 31, wherein one end of each drawstring 31 is connected to the air duct 1
On the skeleton 12 of bending section 17 or/and it is connected on 16 skeleton 12 of straightway that bending section air-flow flows into end 171, the other end
It is connected on tunnel 4；The direction of each drawstring 31 is obliquely installed with respect to the axis of air duct 1, and towards the incoming side of air-flow
To.
Above-mentioned cylinder 11 is base fabric flexible, and entire air duct 1 is enable to shrink and be unfolded, and skeleton 12 is set in cylinder 11
Side withholds component 14 and includes retaining ring and the hook being connected on retaining ring, and retaining ring is across skeleton 12, skeleton 12 and in cylinder 11
The retaining ring of side section is connected to 11 inside of cylinder by press strip cloth 13.The suspension parts 2 include the head-rope being connected on skeleton 12
21, the end of the head-rope 21 is fixed on by anchor pole 22 on tunnel 4.It should be noted that the air duct 1 includes several air ducts
Unit is connected with each other, and the both ends of each air duct unit are equipped with connecting component 15, which can pass through slide fastener
Structure realizes connection, the air duct 1 that several air duct units are connected to form a whole, the bending section 17 and straight line of air duct 1
Section 16 is not necessarily independent from each other two air duct units, can also be that an air duct unit bent intermediate forms bending section
17, the structure of both ends or straight line forms straightway 16, is decided according to the actual requirements.
A part of drawstring 31 is connected to the skeleton of the bending section 17 of air duct 1 in all drawstrings 31 of above-mentioned counter-force component 3
On 12, another part drawstring 31 is connected on 16 skeleton 12 of straightway that bending section air-flow flows into end 171.When mounted,
According to actual needs, the roof position in tunnel 4 is connected in a portion drawstring 31, another part drawstring 31 is connected to tunnel
4 sidewall locations.In addition, each drawstring 31 is equipped with stretcher 32, stretcher 32 is used to connect air duct 1 and tunnel when drawstring 31
After 4, tensioning can be realized by stretcher 32, drawstring 31 is made to produce certain prestressing force, air duct 1 can be effectively reduced and produced when in use
Raw deflection, to maintain the shape of air duct 1.
The bending section 17 of the air duct 1 is additionally provided with the tightening device so that the holding brake forming of cylinder 11 of bending section 17, receives
Tight device keeps the state of a brake forming convenient for the air duct 1 of bending section 17, and avoiding the air-flow in air duct 1 from changing leads to air duct
1 shape becomes larger excessive, influences to use.Specifically, tightening device includes the steel wire rope 33 for connecting 17 all skeletons 12 of bending section, steel
33 one end of cord is connected to bending section air-flow and flows on the skeleton 12 at end 171, and the other end is connected to bending section air-flow outflow end
On skeleton 12, stretcher 32 is connected between the both ends of steel wire rope 33.
The negative pressure air duct system, including air duct 1 and the suspension parts 2, the counter-force component 3 that are connected on air duct 1, wherein hanging
Component 2 is used to air duct 1 being suspended on tunnel 4, due to the tunnel 4 of the shape adaptation curved shape of air duct 1, will include straight
Line segment 16 and bending section 17；And counter-force component 3 is connected on air duct 1 by several drawstrings 31, and by drawstring 31 along air duct 1
Axially inclined setting is simultaneously connected to towards the direction of flow of air-flow on tunnel 4；Negative pressure air duct system described in the utility model is led to
It crosses and hangs counter-force component 3 on air duct 1, it, should when air-flow flows through the straightway 16 of air duct 1 after air-flow can be passed through in air duct 1
The stickiness power of air-flow is offset by the power of each skeleton 12 and suspension parts 2 on cylinder 11, which will not be deformed,
And when air-flow flows through the bending section 17 of air duct 1, although 1 ventilation-sectional area of air duct of the bending section 17 is reduced, pressure increases suddenly,
It is since air duct 1 is equipped with counter-force component 3, the drawstring 31 of the counter-force component 3 can provide and air flow direction phase bending section 17
Anti- counter-force enables the cylinder 11 of bending section 17 to keep original state to offset the stickiness power that air-flow is generated in the bending section 17.
Compared to it is existing 4 bending position of tunnel need using hard structure as using metal component material bending cylinder 11 bring at
For this is higher, installation is inconvenient, by using negative pressure air duct system described in the utility model, i.e. flexible cylinder 11 can also fit
It answers and is used under the operating mode of winding roadway 4, wide adaptability.
The negative pressure air duct system, it is simple in structure, easy for installation, tunnel 4 can be directed to and encountering the work for needing air duct 1 to be bent
When condition, negative pressure air duct 1 will not draw bad phenomenon by the stickiness power i.e. pulling force that downwind air-flow generates in use, can
Reach higher intensity, can reach the inside and outside pressure difference of 7000Pa or more, good reliability as the air duct 1 bears negative pressure value.
Embodiment 2
As shown in Figs. 1-2, the present embodiment 2 provides a kind of anti-construction method for inhaling flat high intensity negative pressure air duct system, packet
Include following steps：
Step 1: connection prepares, air duct 1 is unfolded to form formation to be installed in tunnel 4 according to the shape in tunnel 4,
Including straightway 16 and bending section 17；
Step 2: installation suspension parts 2 and counter-force component 3, the installation suspension parts 2 on air duct 1, and in bending section 17
Cylinder 11 on installation counter-force component 3 several drawstrings 31 and stretcher 32；
Step 3: air duct 1, is suspended on tunnel 4 by installation air duct 1 by the suspension parts 2；
Step 4: installation counter-force component 3, all drawstrings 31 are connected on tunnel 4, wherein each drawstring 31
Direction be obliquely installed with respect to the axis of air duct 1, and towards the direction of flow of air-flow.
The expansion of air duct 1 is formed matched with the shape in tunnel 4 first, then existed by the construction method of the negative pressure air duct system
Connect suspension parts 2 and counter-force component 3 on air duct 1, wherein suspension parts 2 are used to air duct 1 being suspended on tunnel 4, and counter-force
Component 3 is connected on air duct 1 by several drawstrings 31, and by drawstring 31 along the axially inclined setting of air duct 1 and towards air-flow
Direction of flow be connected on tunnel 4, air duct 1 is suspended on tunnel 4 by final realize, and counter-force component 3 is tensioned
Negative pressure air duct system described in the utility model can be in air duct 1 by hanging counter-force component 3 on air duct 1
After being passed through air-flow, when air-flow flows through the straightway 16 of air duct 1, the stickiness power of the air-flow is by each skeleton 12 on cylinder 11 and outstanding
The power for hanging component 2 is offset, which will not be deformed, and when air-flow flows through the bending section 17 of air duct 1, although this is curved
1 ventilation-sectional area of air duct of tune 17 is reduced, and pressure increases suddenly, but since air duct 1 is equipped with counter-force component 3, the counter-force component 3
Drawstring 31 can provide the counter-force opposite with air flow direction to bending section 17, generated in the bending section 17 offsetting air-flow
Stickiness power enables the cylinder 11 of bending section 17 to keep original state.The construction method of the negative pressure air duct system, it is simple to operate,
Tunnel 4 can be directed to when encountering the operating mode for needing air duct 1 to be bent, negative pressure air duct 1 in use will not be by downwind
Stickiness power, that is, pulling force that air-flow generates draws bad phenomenon, good reliability.
Embodiment 3
As shown in figure 3, the open one kind of the present embodiment 3 is anti-to inhale flat high intensity negative pressure air duct 1 for being horizontal mounted on tunnel 4
The situation of turning：
Specifically, when being installed, the situation in reference implementation example 2 particularly needs the arc tube in bending section 17
Several drawstrings 31 are installed in 11 outside of body, and each drawstring 31 is equipped with stretcher 32；In 11 inside of arc cylinder of bending section 17
Tightening device is installed, wherein tightening device includes the steel wire rope 33 for being connected to 17 both ends of bending section, two steel wire ropes
33 are connected in the oblique top of splayed shape on the tunnel 4, and each steel wire rope 33 is equipped with stretcher 32.
It is applied man-hour requirement and uses following construction method and step：
The first step：The component 14 of withholding of negative pressure air duct 1 is suspended on the anchor pole 22 of 4 roof of tunnel, it is desirable that：Hanging
Need straight, head-rope 21 that is on air duct 1 and each withholding component 14 is required to hang；
Second step：31 one end of drawstring is fixed on to 11 outside of arc cylinder of bending section 17, the other end fixes 4 side of tunnel
Wall makes drawstring 31 be obliquely installed, and opposite direction is flowed to towards distinguished and admirable, and to offset the suction that distinguished and admirable adhesive tape comes, steel wire is used in combination
33 tighteners of restricting tense；
Third walks：Steel wire rope 33 at 17 both ends of bending section is connected by two steel wire ropes 33 in the oblique top of splayed shape
It is connected on tunnel 4, each steel wire rope 33 is equipped with stretcher 32, is fixed on tunnel 4.
Embodiment 4
As shown in figure 4, the open one kind of the present embodiment 4 is anti-to inhale flat high intensity negative pressure air duct 1 for being slope mounted on tunnel 4
The situation of turning applies man-hour requirement and uses following construction method and step：
The first step：All drawstrings 31 of counter-force component 3 are connected to the straightway 16 that end 171 is flowed into positioned at bending section air-flow
Cylinder 11 skeleton 12 on, each drawstring 31 be equipped with stretcher 32；
Second step：Tightening device is installed in 11 inside of arc cylinder of bending section 17, wherein the tightening device includes point
It is not connected to the steel wire rope 33 at 17 both ends of bending section, two steel wire ropes 33 are connected to the tunnel 4 in the oblique top of splayed shape
On, each steel wire rope 33 is equipped with stretcher 32, is fixed on tunnel 4.
Embodiment 5
As seen in figs. 5-6, the open one kind of the present embodiment 5 is anti-inhales flat high intensity negative pressure air duct 1 for being perpendicular mounted on tunnel 4
To the situation of turning, need 1 decurvation of negative pressure air duct being connected to the irony air duct 5 in tunnel 4, the irony air duct 5
There are one connectors 6 for tool, apply man-hour requirement and use following construction method and step：
The first step：1 bending section air-flow outflow end 172 of air duct is connected on the connector 6 of irony air duct 5, and in outer surface cover
If fixed ring 34 is fixed；
Second step：Air duct 1 is suspended on by suspension parts 2 on tunnel 4, suspension parts 2 are connected to the arc of bending section 17
11 outside of shape cylinder；
Third walks：Counter-force component 3 is connected on air duct 1, wherein the first tightening device of installation counter-force component 3, specifically,
Tightening device is installed in 11 inside of arc cylinder of bending section 17, and tightening device includes steel wire rope 33 and on steel wire rope 33
Tight device 32, wherein steel wire rope 33 link together the skeleton 12 of bending section 17, and the steel wire rope 33 is located at the arc of bending section 17
11 inside of shape cylinder；
4th step：One end connection bending section air-flow of two drawstrings 31 of counter-force component 3 is flowed into 12 bottom of skeleton at end 171
In portion, the other end of two drawstrings 31 forms splayed shape and is connected on tunnel 4, and each drawstring 31 is equipped with stretcher 32；
5th step：Stretcher 32 on drawstring 31 and steel wire rope 33 is opened into the suspension of completion negative pressure air duct 1.
Above example is only to illustrate the utility model and not limits technical solution described in the utility model, to the greatest extent
Pipe this specification has been carried out detailed description with reference to above-mentioned each embodiment to the utility model, but the utility model not office
It is limited to above-mentioned specific implementation mode, therefore any modifies to the utility model or equivalent replacement；And all do not depart from practicality
The technical solution of novel spirit and scope and its improvement should all be covered in the right of the utility model.
Claims (10)
1. a kind of anti-flat high intensity negative pressure air duct system of suction, which is characterized in that including：
Air duct (1) includes the cylinder (11) of base fabric material, be set to the cylinder (11) on several skeletons (12) and several
Withhold component (14)；
Suspension parts (2), for connect it is each it is described withhold component (14), and the air duct (1) is suspended on tunnel (4),
The shape and the shape of tunnel (4) for making the air duct (1) formation are consistent, i.e., it includes straightway that the described air duct (1), which is formed,
(16) and the shape of bending section (17)；
Counter-force component (3), including several drawstrings (31), wherein one end of each drawstring (31) is connected to the air duct
(1) on the skeleton (12) of bending section (17) or/and be connected to positioned at bending section air-flow flow into end (171) straightway (16) bone
On frame (12), the other end is connected on tunnel (4)；Axis inclination of the direction of each drawstring (31) with respect to air duct (1) is set
It sets, and towards the direction of flow of air-flow.
2. one kind according to claim 1 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that all drawstrings
(31) a part of drawstring (31) is connected on the skeleton (12) of the bending section (17) of the air duct (1) in, another part drawstring
(31) it is connected on straightway (16) skeleton (12) that bending section (17) air-flow flows into end.
3. one kind according to claim 1 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that each drawstring
(31) it is equipped with stretcher (32).
4. one kind according to claim 1 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that the air duct (1)
Bending section (17) be equipped with so that bending section (17) cylinder (11) keep brake forming tightening device.
5. one kind according to claim 4 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that the tightening device
Include the steel wire rope (33) of connection bending section (17) all skeletons (12), described steel wire rope (33) one end is connected to bending section air-flow
It flows on the skeleton (12) of end (171), the other end is connected on the skeleton (12) of bending section air-flow outflow end (172), the steel
Stretcher (32) is connected between the both ends of cord (33).
6. one kind according to claim 1 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that the air duct (1)
It is connected with each other including several air duct units.
7. one kind according to claim 1 is anti-to inhale flat high intensity negative pressure air duct system, which is characterized in that each skeleton
(12) be set on the inside of the cylinder (11), each skeleton (12) pass through have it is described withhold component (14), each skeleton
(12) and the component (14) of withholding positioned at the cylinder (11) inboard portion is covered with press strip cloth (13).
8. inhaling flat high intensity negative pressure air duct system according to any described one kind of claim 1-7 is anti-, which is characterized in that when described
When the bending section (17) of air duct (1) is located at tunnel (4) flat bank, bending section (17) arc cylinder (11) if outside installation
Dry drawstring (31), each drawstring (31) are equipped with stretcher (32)；The installation on the inside of the arc cylinder (11) of bending section (17)
Tightening device, wherein the tightening device includes the steel wire rope (33) for being connected to bending section (17) both ends, two steel
Cord (33) is connected in the oblique top of splayed shape on the tunnel (4), and each steel wire rope (33) is equipped with stretcher (32).
9. inhaling flat high intensity negative pressure air duct system according to any described one kind of claim 1-7 is anti-, which is characterized in that when described
When the bending section (17) of air duct (1) is located at the turning of tunnel (4) slope, all drawstrings (31) of the counter-force component (3) are connected to
It flows into positioned at bending section air-flow on the skeleton (12) of the cylinder of the straightway (16) of end (171), is set on each drawstring (31)
There is stretcher (32)；Tightening device is installed on the inside of the arc cylinder (11) of bending section (17), wherein the tightening device includes
It is connected to the steel wire rope (33) at bending section (17) both ends, two steel wire ropes (33) are in the oblique top connection of splayed shape
On the tunnel (4), each steel wire rope (33) is equipped with stretcher (32).
10. inhaling flat high intensity negative pressure air duct system according to any described one kind of claim 1-7 is anti-, which is characterized in that work as institute
State air duct (1) bending section (17) be located at tunnel (4) vertically turn when, the counter-force component (3) include two drawstrings (31), two
One end of a drawstring (31) connects the bending section air-flow and flows on skeleton (12) bottom of end (171), two drawstrings (31)
The other end forms splayed shape and is connected on tunnel (4), and each drawstring (31) is equipped with stretcher (32)；In bending section
(17) tightening device is installed, the tightening device includes steel wire rope (33) and is set to steel wire rope (33) on the inside of arc cylinder (11)
On stretcher (32), wherein the steel wire rope (33) links together the skeleton (12) of bending section (17), the steel wire rope
(33) it is located on the inside of the arc cylinder (11) of bending section (17), the suspension parts (2) are connected to the arc tube of bending section (17)
On the outside of body (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896113.XU CN207686752U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-flat high intensity negative pressure air duct system of suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721896113.XU CN207686752U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-flat high intensity negative pressure air duct system of suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207686752U true CN207686752U (en) | 2018-08-03 |
Family
ID=62992710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721896113.XU Withdrawn - After Issue CN207686752U (en) | 2017-12-29 | 2017-12-29 | A kind of anti-flat high intensity negative pressure air duct system of suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207686752U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005705A (en) * | 2017-12-29 | 2018-05-08 | 成都众成新型复合材料有限公司 | One kind is anti-to inhale flat high intensity negative pressure air duct system and construction method |
-
2017
- 2017-12-29 CN CN201721896113.XU patent/CN207686752U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005705A (en) * | 2017-12-29 | 2018-05-08 | 成都众成新型复合材料有限公司 | One kind is anti-to inhale flat high intensity negative pressure air duct system and construction method |
| CN108005705B (en) * | 2017-12-29 | 2023-11-14 | 成都众成新型复合材料有限公司 | Anti-suction flat high-strength negative pressure air duct system and construction method |
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Granted publication date: 20180803 Effective date of abandoning: 20231114 |