CN207297020U - Microbarometric wave slowing device and miro-air pressure wave in tunnel slow down structure - Google Patents
Microbarometric wave slowing device and miro-air pressure wave in tunnel slow down structure Download PDFInfo
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- CN207297020U CN207297020U CN201721154574.XU CN201721154574U CN207297020U CN 207297020 U CN207297020 U CN 207297020U CN 201721154574 U CN201721154574 U CN 201721154574U CN 207297020 U CN207297020 U CN 207297020U
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Abstract
It the utility model is related to a kind of microbarometric wave slowing device and miro-air pressure wave in tunnel and slow down structure, belong to tunneling technique field.Microbarometric wave slowing device includes body, body is provided with intake stack and surge chamber, intake stack includes airflow inlet and air stream outlet, airflow inlet is located at the both ends of intake stack with air stream outlet respectively, surge chamber is connected with intake stack, intake stack is set relative to the sidewall slope of surge chamber, surge chamber includes cushion chamber, cushion chamber is connected with intake stack by air stream outlet, at least one guide plate is provided with cushion chamber, guide plate extends along the direct of travel of air-flow, and guide plate is used to change the flow direction for flowing into the air-flow in cushion chamber.The microbarometric wave slowing device, it is simple in structure, be installed in tunnel, can effective microbarometric wave of the scatter columns garage in, slow down microbarometric wave.Miro-air pressure wave in tunnel using the microbarometric wave slowing device slows down structure, effectively weakens the transmission of microbarometric wave, lifts the buffering effect in tunnel.
Description
Technical field
Tunneling technique field is the utility model is related to, in particular to a kind of microbarometric wave slowing device and tunnel
Microbarometric wave slows down structure.
Background technology
When train to enter tunnel at a high speed, initial compression waves will be produced before train, this ripple is propagated forward along tunnel.
Extending as train further drives into the continuous of tunnel and tunnel looped pipeline length, the pressure in tunnel also constantly increases,
The wavefront barometric gradient of compressional wave is also with continuing to strengthen, untill a period of time after train fully enters tunnel.Work as compression
Ripple reach tunnel exit at when, i.e., be reflected into dilatational wave to import, at the same time, an impulse wave from tunnel exit peripherally
Area is radiate, and sends explosive sound so that and nearby the window frame in house, shutter etc. drastically vibrate, and send the sound of " coughing up ",
This veiny shock wave is microbarometric wave.In existing tunnel embodiment, slow down ineffective, it is necessary to set for microbarometric wave
Count rational tunnel structure.
Utility model content
The purpose of this utility model is that in view of the above-mentioned problems, provide a kind of microbarometric wave slowing device, it is simple in structure,
It is slowed down in compressional wave communication process, so as to reduce air pressure intensity of wave, is improved the above problem.
Another purpose of the utility model is that providing a kind of miro-air pressure wave in tunnel slows down structure, effectively weakens micro- air pressure
The transmission of ripple, lifts the buffering effect in tunnel.
The utility model is realized in this way：
The embodiment of the utility model provides a kind of microbarometric wave slowing device, described applied to tunnel, including body
Body is provided with intake stack and surge chamber, and the intake stack includes airflow inlet and air stream outlet, the airflow inlet with
The air stream outlet is located at the both ends of the intake stack respectively, and the surge chamber is connected with the intake stack, the inlet air
Pipeline is set relative to the sidewall slope of the surge chamber, and the surge chamber includes cushion chamber, the cushion chamber and the inlet air
Pipeline is connected by the air stream outlet, is provided with least one guide plate in the cushion chamber, and the guide plate is along air-flow
Direct of travel extends, and the guide plate is used to change the flow direction for flowing into the air-flow in the cushion chamber.
In the utility model optional embodiment, the guide plate includes the first end and second end being oppositely arranged, institute
The side wall that first end is stated with the surge chamber is connected, and the direct of travel of the second end along air-flow extends and the second end and institute
Stating between the side wall of surge chamber has gap.
In the utility model optional embodiment, the quantity of the guide plate is one, and the guide plate is used to make stream
The air-flow entered in the cushion chamber is flowed along C-shaped.
In the utility model optional embodiment, the quantity of the guide plate is two, and described two guide plates edges are perpendicular
Nogata to being interspersed side by side, and described two guide plates are for making the air-flow in the inflow cushion chamber along snakelike flowing.
In the utility model optional embodiment, the width of the cross section of the cushion chamber is more than the intake stack
The width of cross section.
In the utility model optional embodiment, the microbarometric wave slowing device further includes filter assemblies, the mistake
Filter component is located at the airflow inlet and the filter assemblies are connected with the intake stack.
In the utility model optional embodiment, the surge chamber is provided with gas outlet, and the gas outlet is opened in institute
State the side wall of surge chamber and the gas outlet is away from the intake stack.
In the utility model optional embodiment, the guide plate offers multiple through holes, and the through hole is led described in
Extend to the thickness direction of plate.
The embodiment of the utility model additionally provides a kind of miro-air pressure wave in tunnel and slows down structure, including multiple above-mentioned micro- gas
Ripple slowing device is pressed, the multiple microbarometric wave slowing device is distributed in tunnel along the length direction spacing side by side in tunnel.
In the utility model optional embodiment, it is spaced between adjacent two microbarometric wave slowing devices
200m。
Compared with prior art, the beneficial effects of the utility model are：
The microbarometric wave slowing device, it is simple in structure, it is installed in tunnel, can effective micro- gas of the scatter columns garage in
Ripple is pressed, slows down microbarometric wave.
Miro-air pressure wave in tunnel using the microbarometric wave slowing device slows down structure, effectively weakens the transmission of microbarometric wave,
Lift the buffering effect in tunnel.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
Attached drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, without creative efforts, may be used also
To obtain other relevant attached drawings according to these attached drawings.
Fig. 1 is the structure diagram of the microbarometric wave slowing device of the utility model first embodiment；
Fig. 2 is the structure diagram of the microbarometric wave slowing device of the utility model second embodiment；
Fig. 3 is that the miro-air pressure wave in tunnel of the utility model 3rd embodiment slows down a kind of structure diagram of structure；
Fig. 4 is that the miro-air pressure wave in tunnel of the utility model 3rd embodiment slows down another structure diagram of structure.
Icon：100- microbarometric wave slowing devices；11- intake stacks；111- airflow inlets；112- air stream outlets；12- delays
Rush room；121- cushion chambers；122- guide plates；1221- first ends；1222- second ends；1223- through holes；123- gas outlets；13- mistakes
Filter component；21- track plates；22- trains；23- tunnels.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, instead of all the embodiments.Usually here described in attached drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, requirement is not intended to limit to the detailed description of the embodiment of the utility model provided in the accompanying drawings below
The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model
Embodiment, those of ordinary skill in the art's all other embodiments obtained without creative efforts, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the utility model, it is necessary to explanation, term " orientation of instruction such as " center ", " interior ", " outer " or
Position relationship be based on orientation shown in the drawings or position relationship, or the utility model product using when the side usually put
Position or position relationship, are for only for ease of description the utility model and simplify description, rather than instruction or the device for implying meaning
Or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to the utility model
Limitation.In addition, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
First embodiment
Fig. 1 is refer to, the present embodiment provides a kind of microbarometric wave slowing device 100, applied to tunnel, including body.
In the present embodiment, body is provided with intake stack 11 and surge chamber 12, and the opening of intake stack 11 can flow into
Air-flow so that air-flow enters surge chamber 12 through intake stack 11.It is provided with guide plate 122 in surge chamber 12, guide plate 122 can be with
Change the flow direction of the air-flow entered so that air-flow is buffered in surge chamber 12, and is dribbled.
Below the concrete structure to all parts of the microbarometric wave slowing device 100 and mutual position relationship into
Row describes in detail.
The microbarometric wave slowing device 100 is installed on tunnel internal, can both be installed on track plates bottom, can also install
Side wall in tunnel, user can choose installation site according to actual conditions.
Body is provided with intake stack 11 and surge chamber 12, and intake stack 11 is connected with surge chamber 12, and body is arranged on tunnel
In road, when train is advanced, air-flow enters in surge chamber 12 through intake stack 11, and in 12 inner dissipation of surge chamber.
As shown in Figure 1, intake stack 11 includes airflow inlet 111 and air stream outlet 112, airflow inlet 111 goes out with air-flow
Mouth 112 is located at the both ends of intake stack 11 respectively.
For the ease of in train traveling process, air-flow preferably enters intake stack 11, and intake stack 11 is relative to buffering
Room 12 is obliquely installed, that is to say, that and the center line in the section of airflow inlet 111 intersects with the center line of intake stack 11, and two
There is angle between person.Equivalent to the section of airflow inlet 111 is more than the cross section of intake stack 11.
Surge chamber 12 is connected with intake stack 11, and surge chamber 12 includes cushion chamber 121, cushion chamber 121 and intake stack 11
Connected by air stream outlet 112.
Due to intake stack 11 relative to surge chamber 12 sidewall slope set, in order to preferably slow down microbarometric wave,
In the present embodiment, the width of the cross section of cushion chamber 121 is more than the width of the cross section of intake stack 11, equivalent to, air-flow by
After air stream outlet 112 enters cushion chamber 121, the surrounding toward air stream outlet 112 dissipates, and avoids air-flow from concentrating on air stream outlet 112
Near.
At least one guide plate 122 is provided with cushion chamber 121, guide plate 122 extends along the direct of travel of air-flow, is oriented to
Plate 122 is used to change the flow direction for flowing into the air-flow in cushion chamber 121.Guide plate 122 includes the first end being oppositely arranged
1221 and second end 1222, first end 1221 be connected with the side wall of surge chamber 12, second end 1222 is prolonged along the direct of travel of air-flow
Stretch, and there is gap between the side wall of second end 1222 and surge chamber 12 (gap here is defined as buffer gap).Such as Fig. 1
Shown, first end 1221 is provided with buffering close to intake stack 11 between second end 1222 and the side wall of surge chamber 12 in figure
Gap.Equivalent to being provided with guide plate 122 on the side wall of surge chamber 12, there is gap, gas between guide plate 122 and side wall
After stream enters cushion chamber 121, due to the barrier of guide plate 122, air-flow flows between the side wall of guide plate 122 and surge chamber 12
Dynamic, so as to increase the flow of flowing of the air-flow in surge chamber 12, air-flow is when entering airflow inlet 111 with certain gas
Pressure, with the barrier of guide plate 122 in intake stack 11 and surge chamber 12, so as to get up to 121 innermost air-flow of cushion chamber
Pressure reduce, the pressure of air-flow is retarded.Here cushion chamber 121 most the inside refers to that air-flow is flowed along guide plate 122
To the inside of cushion chamber 121, that is, the end of flow channel of the air-flow in cushion chamber 121.
It is pointed out that the size of buffer gap, can choose according to actual conditions, buffer gap is chosen should be moderate,
It should not be too large, it is also unsuitable too small.
As the optional mode of the present embodiment, the quantity of guide plate 122 is one, since the space of surge chamber 12 is limited,
In order to slow down the pressure of air-flow to a greater extent, the first end 1221 of guide plate 122 is close to air stream outlet 112, second end 1222
Away from air stream outlet 112, equivalent to buffer gap away from air stream outlet 112, so that flow of the air-flow in surge chamber 12
Maximize, guide plate 122 is so that air-flow flows in cushion chamber 121 along C-shaped.
In order to disperse, slow down the air-flow in cushion chamber 121, guide plate 122 offers multiple through holes 1223, through hole
1223 extend along the thickness direction of guide plate 122.Equivalent to, when the surface of air-flow along guide plate 122 flows through guide plate 122, one
Through hole 1223 of the fraction through being opened up on guide plate 122 is dispersed into next sheaf space, and (guide plate 122 here is by cushion chamber
121 points have been two layers, the next layer of sky separated by guide plate 122 referred on the direction that air-flow is advanced in cushion chamber 121
Between), slow down the pressure during air-flow is advanced so that the pressure of air-flow weakens.Quantity, arrangement mode and the through hole of through hole 1223
1223 diameter, can be diversified forms, and user can be set according to actual conditions.
Further, surge chamber 12 is provided with gas outlet 123, and gas outlet 123 is opened in the side wall of surge chamber 12, and goes out
Gas port 123 is away from intake stack 11, equivalent to air-flow is after the guiding through guide plate 122 in cushion chamber 121, the pressure of air-flow
Power has reduced, and is discharged through gas outlet 123.For into the stream pressure of intake stack 11, the stream pressure of discharge
It is insignificant.The setting of gas outlet 123, can further slow down microbarometric wave, when air-flow enters intake stack 11 and delays
After rushing room 12, by the buffering of guide part so that most of microbarometric wave is cancelled, the pressure very little of the air-flow of discharge.
In order to prevent in train traveling process, foreign matter enters inlet channel through airflow inlet 111, and blocks airflow inlet
111, which further includes filter assemblies 13, and filter assemblies 13 are located at airflow inlet 111, and filter
Component 13 is connected with intake stack 11.
As the optional mode of the present embodiment, filter assemblies 13 are filter screen, and filter screen is coated on airflow inlet 111, and
And the surrounding of filter screen is fixed on intake stack 11, prevent the air-flow in train traveling process from taking away filter screen.Filter screen is chosen
Metal mesh, metal mesh have certain hardness, high with 11 bonding strength of intake stack, have windproof characteristic.Filter screen both may be used
Think metal mesh, or the net of other materials, as long as filter screen has certain intensity, can blocking foreign body and prevent by
Air-flow is taken away.The aperture of filter screen and quantity can be chosen according to actual conditions, and the present embodiment is not restricted.
The operation principle of the utility model embodiment is：
The direct of travel that the airflow inlet 111 of intake stack 11 is catered to train is set, and air-flow is flowed to through intake stack 11
Cushion chamber 121, at air stream outlet 112, air-flow is diffused in cushion chamber 121 by intake stack 11, and air-flow is hindered by guide plate 122
Every buffered gap, the flowing in cushion chamber 121, so as to increase flow of the air-flow in cushion chamber 121, slows down microbarometric wave, subtracts
The pressure of weak air-flow.
It is pointed out that the size of intake stack 11 and the size of surge chamber 12 can be according to the practical structures in tunnel
To choose, in order to consider the structural stability in tunnel, the height of surge chamber 12 is unsuitable excessive.
Second embodiment
Researcher, to microbarometric wave slowing device 100 provided by the utility model, implements by research above-mentioned first
On the basis of example, following optional other structures schemes can be also made, are described as follows：
As shown in Fig. 2, the quantity of guide plate 122 is two, two guide plates 122 are vertically interspersed side by side,
The setting of guide plate 122 so that flow into the air-flow in cushion chamber 121 along snakelike flowing.Equivalent to two guiding being vertically distributed
Plate 122 is so that air-flow in cushion chamber 121, vertically flows, due to the barrier of guide plate 122, air-flow, which need to flow through, to be located at
Two buffer gaps at both ends, so as to increase the flow of air-flow, weaken the pressure of air-flow, play the role of slowing down microbarometric wave.
It is pointed out that the direct of travel for defining train here is horizontal direction, the microbarometric wave slowing device 100
The direct of travel that airflow inlet 111 need to cater to train is set, and therefore, air-flow is with import and horizontal direction.In order to preferably slow down
Microbarometric wave, is arranged at track plates bottom, that is to say, that the microbarometric wave slowing device by the microbarometric wave slowing device 100
100 closer to train, and in train traveling process, air-flow is easier to enter airflow inlet 111.
Relative to first embodiment, in the case that the present embodiment is equal in 12 space of surge chamber, guide plate 122 is added
Quantity, so that the flow increase of air-flow, improves the effect for slowing down microbarometric wave.
3rd embodiment
Present embodiments provide a kind of miro-air pressure wave in tunnel and slow down structure, including multiple first embodiments or second embodiment
The microbarometric wave slowing device 100 of offer.
In the present embodiment, multiple microbarometric wave slowing devices 100 are distributed in along the length direction spacing side by side in tunnel 23
In tunnel 23.
As the optional mode of the present embodiment, as shown in figure 3, microbarometric wave slowing device 100 is installed under track plates 21
Side, airflow inlet 111 are connected with track plates 21, and airflow inlet 111 caters to the direct of travel of train 22.Equivalent to when train 22
During traveling, direct of travel of the air-flow along train 22, is partly into intake stack 11, is offset in surge chamber 12,
So as to slow down the microbarometric wave in tunnel 23.
Further, since tunnel 23 is longer, as shown in figure 4, multiple microbarometric wave slowing devices 100 should be according to certain
Ratio is distributed, and in the present embodiment, 200m is spaced between adjacent two microbarometric wave slowing devices 100.Spaced micro- gas
Pressure ripple slowing device 100 can be segmented the microbarometric wave for slowing down that the traveling of train 22 drives in tunnel 23 so that micro- gas of tunnel face
Press ripple smaller.
It should be noted that the spacing between two adjacent microbarometric wave slowing devices 100 can be diversified forms, make
User can choose suitable numerical value according to the length in tunnel 23.
It should be noted that in the case where there is no conflict, the feature in embodiment in the utility model can be tied mutually
Close.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of microbarometric wave slowing device, applied to tunnel, it is characterised in that including body, the body is provided with inlet air
Pipeline and surge chamber, the intake stack include airflow inlet and air stream outlet, the airflow inlet and the air stream outlet point
Not Wei Yu the intake stack both ends, the surge chamber is connected with the intake stack, and the intake stack is relative to described
The sidewall slope of surge chamber is set, and the surge chamber includes cushion chamber, and the cushion chamber passes through the gas with the intake stack
Flow export connects, and at least one guide plate is provided with the cushion chamber, and the guide plate extends along the direct of travel of air-flow, institute
State guide plate be used for change the inflow cushion chamber in air-flow flow direction.
2. microbarometric wave slowing device according to claim 1, it is characterised in that the guide plate includes what is be oppositely arranged
First end and second end, the first end are connected with the side wall of the surge chamber, and the second end is prolonged along the direct of travel of air-flow
Stretch and there is gap between the side wall of the second end and the surge chamber.
3. microbarometric wave slowing device according to claim 1, it is characterised in that the quantity of the guide plate is one,
The guide plate is used to make the air-flow in the inflow cushion chamber flow along C-shaped.
4. microbarometric wave slowing device according to claim 1, it is characterised in that the quantity of the guide plate is two,
Described two guide plates are vertically interspersed side by side, and described two guide plates are used to make the gas in the inflow cushion chamber
Flow along snakelike flowing.
5. microbarometric wave slowing device according to claim 1, it is characterised in that the width of the cross section of the cushion chamber
More than the width of the cross section of the intake stack.
6. microbarometric wave slowing device according to claim 1, it is characterised in that the microbarometric wave slowing device also wraps
Filter assemblies are included, the filter assemblies are located at the airflow inlet and the filter assemblies are connected with the intake stack.
7. microbarometric wave slowing device according to claim 1, it is characterised in that the surge chamber is provided with gas outlet,
The gas outlet is opened in the side wall of the surge chamber and the gas outlet is away from the intake stack.
8. microbarometric wave slowing device according to claim 1, it is characterised in that the guide plate offers multiple logical
Hole, the through hole extend along the thickness direction of the guide plate.
9. a kind of miro-air pressure wave in tunnel slows down structure, it is characterised in that micro- described in including multiple claim 1-8 any one
Barometric wave slowing device, the multiple microbarometric wave slowing device are distributed in tunnel along the length direction spacing side by side in tunnel.
10. miro-air pressure wave in tunnel according to claim 9 slows down structure, it is characterised in that two adjacent micro- gas
200m is spaced between pressure ripple slowing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721154574.XU CN207297020U (en) | 2017-09-08 | 2017-09-08 | Microbarometric wave slowing device and miro-air pressure wave in tunnel slow down structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721154574.XU CN207297020U (en) | 2017-09-08 | 2017-09-08 | Microbarometric wave slowing device and miro-air pressure wave in tunnel slow down structure |
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| Publication Number | Publication Date |
|---|---|
| CN207297020U true CN207297020U (en) | 2018-05-01 |
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ID=62446669
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721154574.XU Active CN207297020U (en) | 2017-09-08 | 2017-09-08 | Microbarometric wave slowing device and miro-air pressure wave in tunnel slow down structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350519A (en) * | 2020-03-20 | 2020-06-30 | 中车青岛四方机车车辆股份有限公司 | Single-line tunnel and device for reducing pressure waves thereof |
| CN112078598A (en) * | 2020-08-25 | 2020-12-15 | 温州融宸科技有限公司 | Tunnel piston effect slowing device |
-
2017
- 2017-09-08 CN CN201721154574.XU patent/CN207297020U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111350519A (en) * | 2020-03-20 | 2020-06-30 | 中车青岛四方机车车辆股份有限公司 | Single-line tunnel and device for reducing pressure waves thereof |
| CN111350519B (en) * | 2020-03-20 | 2021-10-01 | 中车青岛四方机车车辆股份有限公司 | Single-line tunnel and device for reducing pressure waves thereof |
| CN112078598A (en) * | 2020-08-25 | 2020-12-15 | 温州融宸科技有限公司 | Tunnel piston effect slowing device |
| CN112078598B (en) * | 2020-08-25 | 2021-10-29 | 温州融宸科技有限公司 | Tunnel piston effect slowing device |
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