CN110454209A - interval tunnel jet fan installation and maintenance platform and installation and maintenance method - Google Patents
interval tunnel jet fan installation and maintenance platform and installation and maintenance method Download PDFInfo
- Publication number
- CN110454209A CN110454209A CN201910733331.9A CN201910733331A CN110454209A CN 110454209 A CN110454209 A CN 110454209A CN 201910733331 A CN201910733331 A CN 201910733331A CN 110454209 A CN110454209 A CN 110454209A
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- 238000009434 installation Methods 0.000 title claims abstract description 50
- 238000012423 maintenance Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000000725 suspension Substances 0.000 claims abstract description 3
- 238000006073 displacement reaction Methods 0.000 claims description 28
- 230000009194 climbing Effects 0.000 claims description 22
- 239000000126 substance Substances 0.000 claims description 15
- 230000003447 ipsilateral effect Effects 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 3
- 238000005345 coagulation Methods 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000032258 transport Effects 0.000 claims 1
- 239000006096 absorbing agent Substances 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses an interval tunnel jet fan installation and maintenance platform.A concrete platform is arranged at a position needing to install a jet fan in an interval tunnel to divide the interval tunnel into an upper layer and a lower layer of a jet fan installation area and a train passing area; the top plate of the interval tunnel is pre-buried with a person safety rope hook and an equipment lifting hook, the equipment lifting hook is positioned right above an equipment lifting device and a manhole, the jet fan is provided with a shock absorber, the top of the jet fan is lifted on the top plate of the interval tunnel through a steel wire rope, and the bottom of the jet fan is fixedly installed on a concrete platform. Meanwhile, the invention also discloses an installation and maintenance method of the interval tunnel jet fan. The problem of the interval tunnel efflux fan security of suspension type installation and poor stability, installation and maintenance maintain inconvenient is solved.
Description
Technical field
The present invention relates to the installation of urban track traffic underground section tunnel jet blower and operation maintenance field, tools
Body is related to a kind of installation and repairing method of the jet blower installation and repairing platform for running tunnel and jet blower.
Background technique
Jet blower is the widely used ventilation equipment in the running tunnel of the undergrounds such as railway traffic engineering, is used to induce
Air-flow achievees the purpose that assist section ventilation.
Currently, jet blower is in running tunnel, and it is different with the spatial dimension that can vertically construct in transverse direction according to civil engineering, it adopts
There are two types of the mounting means taken.When section local environment position, civil engineering is wider in running tunnel transverse direction boundary of works area, after construction
When interval space can meet vehicle gauge requirement, installed using side formula (landing)；When running tunnel transverse direction boundary of works area is limited, erect
When wider to boundary of works area, installed using ceiling mounting type.
Side formula (landing) installation is usually that basis is reserved on the ground at tunnel wall edge, and jet blower passes through channel steel bracket
On the basis of being mounted on, and reinforced in tunnel wall side；Ceiling mounting type installation is to be hung in tunnel top by the fixed branch of chemical anchor bolts
Frame, then jet blower is installed on suspension and support.
Since fast running will form Piston Action Wind to train in running tunnel, the frequent of Piston Action Wind disturbs blower itself in addition
The vibration of operation is installed compared to side formula (landing), and the safety that ceiling mounting type installs jet blower is poor.Meanwhile ceiling mounting type is installed
The vertical clear height in tunnel in section is generally 7m or so where jet blower, the installation to jet blower and the maintenance in operation stage
It is all extremely inconvenient with maintenance.
Summary of the invention
Present invention seek to address that ceiling mounting type installation section tunnel jet blower safety and stability is poor, installs and runing
The problem of stage maintenance and maintenance inconvenience.
For this purpose, the technical scheme adopted by the invention is as follows: a kind of running tunnel jet blower installation and repairing platform, in section
Setting concrete platform is needed to install at the position of jet blower in tunnel, and running tunnel is divided into jet blower installing zone and column
Vehicle is provided with equipment hoisting and manhole by area's upper layer and lower layer on the concrete platform, and steps on sky cover board equipped with anti-and be used for
Lid closes the equipment hoisting and manhole, ladder is housed in wherein one side wall of the train by area, and ladder steps on sky cover board with anti-
Positioned at the same side of running tunnel, climbing bracelet is additionally provided on the side wall of the equipment hoisting and manhole；The running tunnel
Top plate on be embedded with personnel safety rope hook and equipment lifting hook, and equipment lifting hook is located at the surface of equipment hoisting and manhole,
The jet blower bottom carries damper, and the top of jet blower is lifted on the top plate of running tunnel by wirerope, is penetrated
The damper of flow fan bottom is fixedly mounted on concrete platform.
Two pieces of time intervals are fixed with by chemical anchor bolts on the top plate of the running tunnel as a preferred embodiment of the above solution,
First zinc-plated junction steel plate of distribution, is welded with the first lifting lug on each first zinc-plated junction steel plate, before the top of jet blower
Interval is welded with two the second lifting lugs afterwards, and the first lifting lug, which is connected with the second ipsilateral lifting lug by the same wirerope, to be realized and penetrate
The lifting of flow fan, the distance of two the first lifting lugs are greater than the distance of two the second lifting lugs, so that two wirerope are in angle cloth
It sets；By chemical anchor bolts fixation, there are four the second zinc-plated connecting plate in rectangular layout, the jet streams on the concrete platform
The damper of blower bottom is welded on the second zinc-plated connecting plate.Two by front and back, the top of jet blower is in angle arrangement
Oblique pull wirerope is lifted, and bottom is fixedly mounted by four welding positions, wire rope inclined-pulling lifting, to jet blower except perpendicular
Histogram to pulling force outside, there are also the component of horizontal direction, and the component of horizontal direction be avoided that jet blower generate it is slight before
After shake, the disturbance of Piston Action Wind that fast running in train interval tunnel generates to jet blower can be further decreased, make jet stream
Assembling is more solid and reliable；First zinc-plated junction steel plate has antirust function, fixes in conjunction with chemical anchor bolts, service life
It is long.
Further preferably, each first zinc-plated junction steel plate equipped with displacement sensor, sensor sensing plate and
Sensor mount；The sensor sensing plate is L-shaped, and upper end is welded on the first zinc-plated junction steel plate, and lower end is hanging；Institute
Stating sensor mount is the integrated frame surrounded by upper level board, lower horizontal board and side plate, and displacement sensor is inserted from top to bottom
On the mounting hole of lower horizontal board and by nut check, upper level board is fixed on the top plate of running tunnel by fastener
On, the lower end of displacement sensor is test side and is reserved with initial installation gap between sensor sensing plate, works as displacement sensing
When device can't detect the signal of sensor sensing plate, it can be alarmed by the alarm being equipped with.
Meanwhile the invention also discloses a kind of installation and repairing methods of running tunnel jet blower, comprising the following steps:
The first step when civil construction, needs to install and makes concrete platform at the position of jet blower in running tunnel,
Running tunnel is divided into jet blower installing zone and train and passes through area's upper layer and lower layer；Equipment is arranged on the concrete platform to hang
Dress and manhole, and be equipped with it is anti-step on sky cover board for cover close the equipment hoisting and manhole, pass through the wherein one side wall in area in train
Upper installing ladder, and ladder steps on the same side that sky cover board is located at running tunnel with anti-；It is embedded on the top plate of the running tunnel
Personnel safety rope hook and equipment lifting hook, and equipment lifting hook is located at the surface of equipment hoisting and manhole；
Two piece of first zinc-plated junction steel plate is fixed on the top of running tunnel by second step by chemical anchor bolts time interval
On plate, four the second zinc-plated connecting plates are fixed on concrete platform by chemical anchor bolts in distributed rectangular；
The jet blower that bottom carries damper is transported to coagulation by equipment lifting hook, equipment hoisting and manhole by third step
After native platform, the installation climbing bracelet on the side wall of equipment hoisting and manhole, installation personnel is climbed up by ladder and climbing bracelet
Concrete platform, while by the safety rope hanging of installation personnel on personnel safety rope hook, then will prevent that stepping on sky cover board covers；
4th step welds the damper of jet blower bottom and four the second zinc-plated connecting plates one by one, meanwhile, each
First lifting lug is respectively welded on first zinc-plated junction steel plate, is welded two second in the top time interval of jet blower and is hung
Ear, the distances of two the first lifting lugs are greater than the distance of two the second lifting lugs, then with wirerope by the first lifting lug and ipsilateral second
Lifting lug connection, which is connected, realizes the lifting of jet blower, and two wirerope after lifting are arranged in angle；Each first plating
For zinc junction steel plate equipped with displacement sensor, sensor sensing plate and sensor mount, the sensor sensing plate is in " L "
Shape, upper end are welded on the first zinc-plated junction steel plate, and lower end is hanging, and the sensor mount is by upper level board, lower level
The integrated frame that plate and side plate surround, displacement sensor are inserted on the mounting hole of lower horizontal board from top to bottom and pass through nut lock
Tightly, upper level board is fixed on the top plate of running tunnel by fastener, the lower end of displacement sensor be test side and with sensing
Initial installation gap is reserved between device tablet；After the installation is completed, installation personnel leaves coagulation by climbing bracelet and ladder
Native platform；
5th step is reported by the alarm of outfit when displacement sensor can't detect the signal of sensor sensing plate
When alert, alternatively, repair and maintenance personnel pass through ladder and climbing when tunnel operation stage needing regular maintenance jet blower
Bracelet climbs up concrete platform, while by the safety rope hanging of repair and maintenance personnel on personnel safety rope hook, then steps on sky for anti-
Cover board covers；After maintenance, repair and maintenance personnel leave concrete platform by climbing bracelet and ladder.
Beneficial effects of the present invention:
(1) running tunnel is divided by upper layer and lower layer by the concrete platform being separately provided, the running tunnel energy after layering
Reduce disturbance of the Piston Action Wind of train fast running generation to jet blower；
(2) jet blower bottom carries damper, while the top of jet blower is lifted on running tunnel by wirerope
Top plate on, bottom is fixedly mounted on concrete platform, is exclusively used in the limited situation of running tunnel transverse direction boundary of works area, is compared
Existing ceiling mounting type installation, stability and safety significantly improve；
(3) for installing with repair and maintenance personnel, concrete platform, equipment lifting hook, equipment hoisting and manhole, ladder
And climbing bracelet creates convenient equipment mode of transport and operating space, personnel safety rope hook and anti-sky cover board of stepping on provide work
Safety prevention measure when industry.
Detailed description of the invention
Fig. 1 is scheme of installation of the jet blower on running tunnel jet blower installation and repairing platform.
Fig. 2 is the side view after jet blower installation.
Fig. 3 is the welding schematic diagram of jet blower and the second zinc-plated connecting plate.
Fig. 4 is the connection schematic diagram of the second lifting lug and wirerope on jet blower.
Fig. 5 is the scheme of installation of displacement sensor.
Specific embodiment
By way of example and in conjunction with the accompanying drawings, the invention will be further described:
In conjunction with shown in Fig. 1-Fig. 5, a kind of running tunnel jet blower installation and repairing platform needs to pacify in running tunnel 1
It fills and concrete platform 3 is set at the position of jet blower 2.Running tunnel 1 is divided into jet blower installing zone 1a by concrete platform 3
With train by area 1b upper layer and lower layer, upper layer is for installing jet blower, and lower layer is for train passage.
Be provided with equipment hoisting and manhole on concrete platform 3, and equipped with it is anti-step on sky cover board 4 for cover conjunction equipment hoisting
And manhole.In train by being equipped with ladder 5 in the wherein one side wall of area 1b, ladder 5 and anti-step on sky cover board 4 and be located at running tunnel
Climbing bracelet 6 is additionally provided on the side wall of the same side, equipment hoisting and manhole.
It is embedded with personnel safety rope hook 7 on the top plate of running tunnel 1 and equipment lifting hook 8, equipment lifting hook 8 are hung positioned at equipment
The surface of dress and manhole.2 bottom of jet blower carries damper 2a, and the top of jet blower 2 is lifted on area by wirerope 9
Between tunnel 1 top plate on, the damper 2a of 2 bottom of jet blower is fixedly mounted on concrete platform 3.
Preferably, the first zinc-plated of two pieces of time intervals distribution is fixed with by chemical anchor bolts on the top plate of running tunnel 1
Junction steel plate 10 is welded with the first lifting lug on each first zinc-plated junction steel plate 10.The top time interval of jet blower 2 is welded
There are two the second lifting lug, the first lifting lug, which is connected with the second ipsilateral lifting lug by same wirerope 9, realizes hanging for jet blower 2
Dress.The distance of two the first lifting lugs is greater than the distance of two the second lifting lugs, so that two wirerope 9 are arranged in angle.
By chemical anchor bolts fixation, there are four the second zinc-plated connecting plate 11 in rectangular layout, jet streams on concrete platform 3
The bottom vibration absorber 2a of blower 2 is welded on the second zinc-plated connecting plate 11.
Each first zinc-plated junction steel plate 10 is equipped with displacement sensor 12, sensor sensing plate 13 and sensor mount
14.Sensor sensing plate 13 is L-shaped, and upper end is welded on the first zinc-plated junction steel plate 10, and lower end is hanging.Sensor mount
14 be the integrated frame surrounded by upper level board, lower horizontal board and side plate.Displacement sensor 12 is inserted into lower level from top to bottom
On the mounting hole of plate and by nut check, upper level board is fixed on the top plate of running tunnel 1 by fastener, displacement sensing
The lower end of device 12 is test side and is reserved with initial installation gap between sensor sensing plate 13, installs displacement sensor 12
Before, it is first put into ranging standard cushion plate 15 on sensor sensing plate 13, lower end and the ranging standard pad of displacement sensor 12 are installed
The fitting of plate 15 indicates to be installed in place, and installation is moved back except ranging standard cushion plate 15.
When displacement sensor 12 can't detect the signal of sensor sensing plate 13, show the first zinc-plated junction steel plate 10 with
Gap between 1 top plate of running tunnel is more than setting value, and jet blower stability reduces, and can be reported by the alarm being equipped with
It is alert.
A kind of installation and repairing method of running tunnel jet blower, comprising the following steps:
When civil construction, it is flat to need to install in running tunnel 1 production concrete at the position of jet blower 2 for the first step
Running tunnel 1 is divided into jet blower installing zone 1a and train and passes through area 1b upper layer and lower layer by platform 3；It is arranged on concrete platform 3
Equipment hoisting and manhole, and be equipped with it is anti-step on sky cover board 4 for cover close equipment hoisting and manhole, pass through wherein the one of area 1b in train
Ladder 5 is installed on side wall, and ladder 5 steps on the same side that sky cover board 4 is located at running tunnel with anti-；It is pre- on the top plate of running tunnel 1
It is embedded with personnel safety rope hook 7 and equipment lifting hook 8, and equipment lifting hook 8 is located at the surface of equipment hoisting and manhole.
Two piece of first zinc-plated junction steel plate 10 is fixed on running tunnel 1 by chemical anchor bolts time interval by second step
Top plate on, four the second zinc-plated connecting plates 11 are fixed on concrete platform 3 by chemical anchor bolts in distributed rectangular.
The jet blower 2 that bottom carries damper 2a is transported to by third step by equipment lifting hook 8, equipment hoisting and manhole
After concrete platform 3, the installation climbing bracelet 6 on the side wall of equipment hoisting and manhole, installation personnel passes through ladder 5 and climbing hand
Ring 6 climbs up concrete platform 3, while by the safety rope hanging of installation personnel on personnel safety rope hook 7, then steps on sky cover board for anti-
4 cover.Jet blower 2 is transported to after concrete platform 3, climbing bracelet 6 is installed again, is avoided that in hoisting process that jet blower 2 is knocked
Touch climbing bracelet 6.
4th step welds the bottom vibration absorber 2a of jet blower 2 and four the second zinc-plated connecting plates 11 one by one, meanwhile,
First lifting lug is respectively welded on each first zinc-plated junction steel plate 10, welds two in the top time interval of jet blower 2
A second lifting lug, the distance of two the first lifting lugs are greater than the distance of two the second lifting lugs, then with wirerope 9 by the first lifting lug and together
The second lifting lug connection of side, which is connected, realizes the lifting of jet blower 2, and two wirerope 9 after lifting are arranged in angle.
Each first zinc-plated junction steel plate 10 is equipped with displacement sensor 12, sensor sensing plate 13 and sensor mount
14.Sensor sensing plate 13 is L-shaped, and upper end is welded on the first zinc-plated junction steel plate 10, and lower end is hanging.Sensor mount
14 be the integrated frame surrounded by upper level board, lower horizontal board and side plate.Displacement sensor 12 is inserted into lower level from top to bottom
On the mounting hole of plate and by nut check, upper level board is fixed on the top plate of running tunnel 1 by fastener.Displacement sensing
The lower end of device 12 is test side and is reserved with initial installation gap between sensor sensing plate 13；After the installation is completed, people is installed
Member leaves concrete platform 3 by climbing bracelet 6 and ladder 5.
5th step, when displacement sensor 12 can't detect the signal of sensor sensing plate 13, by the alarm of outfit into
When row alarm, alternatively, repair and maintenance personnel pass through ladder 5 when tunnel operation stage needing regular maintenance jet blower 2
Concrete platform 3 is climbed up with climbing bracelet 6, while by the safety rope hanging of repair and maintenance personnel on personnel safety rope hook 7, then
It will prevent that stepping on sky cover board 4 covers.
When being overhauled for the signal that displacement sensor 12 can't detect sensor sensing plate 13, pass through new chemical anchors
Gap between first zinc-plated junction steel plate 10 and 1 top plate of running tunnel is adjusted to zero by bolt；After maintenance, repair and maintenance people
Member leaves concrete platform 3 by climbing bracelet 6 and ladder 5.
Claims (4)
1. a kind of running tunnel jet blower installation and repairing platform, it is characterised in that: need to install jet stream in running tunnel (1)
Running tunnel (1) is divided into jet blower installing zone (1a) by setting concrete platform (3) at the position of blower (2) and train passes through
Area (1b) upper layer and lower layer are provided with equipment hoisting and manhole on the concrete platform (3), and step on sky cover board (4) equipped with anti-
The equipment hoisting and manhole are closed for covering, ladder (5) are housed in wherein one side wall of the train by area (1b), and ladder
(5) the same side that sky cover board (4) is located at running tunnel is stepped on anti-, be additionally provided with climbing on the side wall of the equipment hoisting and manhole
Bracelet (6)；Personnel safety rope hook (7) and equipment lifting hook (8) are embedded on the top plate of the running tunnel (1), and equipment is hung
Hook (8) is located at the surface of equipment hoisting and manhole, and the bottom of the jet blower (2) carries damper (2a), jet blower
(2) top is lifted on the top plate of running tunnel (1) by wirerope (9), and the damper (2a) of jet blower (2) bottom is solid
Dingan County is on concrete platform (3).
2. running tunnel jet blower installation and repairing platform described in accordance with the claim 1, it is characterised in that: the running tunnel
(1) on top plate by chemical anchor bolts be fixed with two pieces of time intervals distribution the first zinc-plated junction steel plate (10), each first
The first lifting lug is welded on zinc-plated junction steel plate (10), the top time interval of jet blower (2) is welded with two the second lifting lugs,
First lifting lug and the second ipsilateral lifting lug are connected by the same wirerope (9) realizes the lifting of jet blower (2), two the
The distance of one lifting lug is greater than the distance of two the second lifting lugs, so that two wirerope (9) are arranged in angle；The concrete platform
(3) by chemical anchor bolts fixation, there are four the second zinc-plated connecting plate (11) in rectangular layout, jet blower (2) bottoms on
Damper (2a) be welded on the second zinc-plated connecting plate (11).
3. running tunnel jet blower installation and repairing platform according to claim 2, it is characterised in that: each described first
Zinc-plated junction steel plate (10) is equipped with displacement sensor (12), sensor sensing plate (13) and sensor mount (14)；It is described
Sensor sensing plate (13) is L-shaped, and upper end is welded on the first zinc-plated junction steel plate (10), and lower end is hanging；The sensor
Mounting rack (14) is the integrated frame surrounded by upper level board, lower horizontal board and side plate, and displacement sensor (12) is inserted from top to bottom
On the mounting hole of lower horizontal board and by nut check, upper level board is fixed on the top of running tunnel (1) by fastener
On plate, the lower end of displacement sensor (12) is reserved with for test side and between sensor sensing plate (13) initial installation gap,
When displacement sensor (12) can't detect the signal of sensor sensing plate (13), can be alarmed by the alarm being equipped with.
4. a kind of installation and repairing method of running tunnel jet blower, which comprises the following steps:
The first step, when civil construction, production concrete is flat at the position that needs to install jet blower (2) in running tunnel (1)
Running tunnel (1) is divided into jet blower installing zone (1a) and train and passes through area (1b) upper layer and lower layer by platform (3)；In the coagulation
Equipment hoisting and manhole are set on native platform (3), and be equipped with it is anti-step on sky cover board (4) for cover the conjunction equipment hoisting and manhole,
In train by installing ladder (5) in the wherein one side wall of area (1b), and ladder (5) and anti-step on sky cover board (4) and be located at section tunnel
The same side in road；Personnel safety rope hook (7) and equipment lifting hook (8), and equipment are embedded on the top plate of the running tunnel (1)
Suspension hook (8) is located at the surface of equipment hoisting and manhole；
Two piece of first zinc-plated junction steel plate (10) is fixed on running tunnel (1) by chemical anchor bolts time interval by second step
Top plate on, four the second zinc-plated connecting plates (11) are fixed on concrete platform (3) in distributed rectangular by chemical anchor bolts
On；
Third step transports the jet blower (2) that bottom carries damper (2a) by equipment lifting hook (8), equipment hoisting and manhole
To after concrete platform (3), installation climbing bracelet (6) on the side wall of equipment hoisting and manhole, installation personnel passes through ladder (5)
It is climbed up concrete platform (3) with climbing bracelet (6), while by the safety rope hanging of installation personnel on personnel safety rope hook (7),
It will prevent that stepping on sky cover board (4) covers again；
4th step welds the damper (2a) of jet blower (2) bottom and four the second zinc-plated connecting plates (11), together one by one
When, one the first lifting lug of each welding on each first zinc-plated junction steel plate (10), in the top time interval of jet blower (2)
Weld two the second lifting lugs, the distances of two the first lifting lugs is greater than the distance of two the second lifting lugs, then with wirerope (9) by first
Lifting lug, which connect to be connected with the second ipsilateral lifting lug, realizes the lifting of jet blower (2), and two wirerope (9) after lifting are in folder
Angle arrangement；Each first zinc-plated junction steel plate (10) is equipped with displacement sensor (12), sensor sensing plate (13) and passes
Sensor mounting rack (14), the sensor sensing plate (13) is L-shaped, and upper end is welded on the first zinc-plated junction steel plate (10),
Lower end is hanging, and the sensor mount (14) is the integrated frame surrounded by upper level board, lower horizontal board and side plate, and displacement passes
Sensor (12) is inserted on the mounting hole of lower horizontal board from top to bottom and by nut check, and upper level board is fixed by fastener
On the top plate of running tunnel (1), the lower end of displacement sensor (12) is for test side and pre- between sensor sensing plate (13)
There are initial installation gaps；After the installation is completed, installation personnel leaves concrete platform by climbing bracelet (6) and ladder (5)
(3)；
5th step, when displacement sensor (12) can't detect the signal of sensor sensing plate (13), by the alarm of outfit into
When row alarm, alternatively, repair and maintenance personnel are by climbing when tunnel operation stage needing regular maintenance jet blower (2)
Concrete platform (3) are climbed up in terraced (5) and climbing bracelet (6), while by the safety rope hanging of repair and maintenance personnel in personnel safety rope
It links up on (7), then will prevent that stepping on sky cover board (4) covers；After maintenance, repair and maintenance personnel pass through climbing bracelet (6) and ladder
(5) concrete platform (3) are left.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733331.9A CN110454209A (en) | 2019-08-09 | 2019-08-09 | interval tunnel jet fan installation and maintenance platform and installation and maintenance method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910733331.9A CN110454209A (en) | 2019-08-09 | 2019-08-09 | interval tunnel jet fan installation and maintenance platform and installation and maintenance method |
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| Publication Number | Publication Date |
|---|---|
| CN110454209A true CN110454209A (en) | 2019-11-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910733331.9A Pending CN110454209A (en) | 2019-08-09 | 2019-08-09 | interval tunnel jet fan installation and maintenance platform and installation and maintenance method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847946A (en) * | 2019-12-24 | 2020-02-28 | 山西省交通科技研发有限公司 | Mounting bracket and mounting method for jet fan of long and large highway tunnel |
| CN111550275A (en) * | 2020-04-26 | 2020-08-18 | 中铁二院工程集团有限责任公司 | Unidirectional ventilation system driven by piston wind and control method |
| CN112554945A (en) * | 2020-11-19 | 2021-03-26 | 浙江上风高科专风实业股份有限公司 | Multi-protection anti-seismic hanging bracket for preventing carrying pole beam from falling |
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