CN102808640A - Fan - Google Patents
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- CN102808640A CN102808640A CN 201110142988 CN201110142988A CN102808640A CN 102808640 A CN102808640 A CN 102808640A CN 201110142988 CN201110142988 CN 201110142988 CN 201110142988 A CN201110142988 A CN 201110142988A CN 102808640 A CN102808640 A CN 102808640A
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- blower fan
- suspension rod
- seat board
- connect
- tunnel
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Abstract
The invention provides a fan. The fan comprises a plurality of connecting seat plates arranged on the top of a tunnel, at least two hanging rods connected with the connecting seat plates, and a groined frame connected with at least two hanging rods, wherein the hanging rods can swing relative to the connecting seat plates; and a fan body is arranged on the groined frame. The fan can be suitable for the tunnel with arbitrary camber; and the structure of a bracket is greatly simplified under the condition that the requirement on usability is met, the fan is attractive integrally and convenient to manufacture and install, and true interchange is realized.
Description
Technical field
The present invention relates to a kind of blower fan, particularly a kind of tunnel jet blower is with becoming the camber type.
Background technology
Jet blower is a kind of axial-flow fan special, adds that by an axial flow blower importing and exporting sound absorber forms, and in being generally used for, the longitudinal ventilation air exchange system of short distance highway/railway tunnel, also can be used for other similar ventilation occasion.Adopt the cost of vertical jet blower draft type to have only 1/7th of transversal ventilation mode cost, so be considered to the preferred option of tunnel ventilation system.
Present highway/railway tunnel the section of China is circle (high camber) basically, and jet blower is arranged in center line both sides, tunnel mostly, and the overwhelming majority all integral hanging is installed at the roof position in the tunnel, and suspension and support is a fork configuration.Because of blower fan directly is installed on tunnel traffick and personnel's top, so require the suspension and support of blower fan must have enough security intensities and aesthetic property.
Because the radius value of tunnel actual camber in construction often is not inconsistent with design load; And the pre-embedded steel slab relative position that is used to connect suspension bracket and tunnel wall also has nothing in common with each other (the horizontal spacing value 800mm of pre-embedded steel slabs can error ± 300mm more than) at most, so the fork-shaped suspension bracket that jet blower adopts usually in original arched tunnel must be in the erecting bed before design utilizes equipment such as laser range finder to carry out accurately measurement of scene to each piece pre-embedded steel slab.Simultaneously because support is a fork-shaped; So final support all must be certain relative angle when each member is installed when design; If angle is not to will producing the disunity of bow and pre-embedded steel slab horizontal spacing,, will make the other end of member produce bigger relative error value if the connection holes position of one end has deviation or the distortion of processing back slightly during production; Make support finally be difficult to the assembly unit success, final support also can't be welded in the pre-embedded steel slab with holding water.So in actual use; Most of producers all are that the pre-embedded steel slab position dimension by field measurement customizes assembling one by one to each assistant support; And carry out reference numeral; Because the support delivery time is the loose mail state, so to wrong phenomenon of piecing together very easily occurring during on-the-spot back assembly unit, difficulty of processing and installation difficulty are very big.
Simultaneously, according to requiring jet blower among the JTJ026.1-1999 " highway tunnel ventilation illumination design standard ": the structural strength of supporting blower fan should guarantee at more than 15 times of actual dead load, should do the load test of supporting construction before blower fan is installed.Because bow is installed the back main member and the tunnel center line all is very big relative angle; Support element will bear and vertically receive the dual stressed of gravity and incline direction shearing force when doing the supporting test, and whole stressing conditions is very complicated, check to calculate to be difficult to carry out; Usually need the professional on mainframe computer, to utilize finite element software to carry out complicated modeling, analytical calculation; Very inconvenient, not damage or be out of shape so be generally when guaranteeing under 15 times load pull-out test support, the structure of bow is very complicated; Overall weight is very big; Ultimate cost has reached about 1/3rd of blower fan body, and has caused pre-embedded steel slab removing this external extra load of blower fan, and is also not favourable to the operation of blower fan general safety.
So up to the present, the fork-shaped suspension bracket of arch form tunnel jet blower all is a pretty troublesome but problem of having to face for each producer and user.
Summary of the invention
The purpose of this invention is to provide a kind of blower fan, it can be easily installed in the tunnel of any camber.
The object of the invention realizes that through a kind of like this blower fan is provided it comprises: a plurality of connection seat boards that are installed on tunnel top; Connect at least two suspension rods that connect seat board, suspension rod can be swung with respect to connecting seat board; Connect the well cabinet frame of aforementioned at least two suspension rods, on the well cabinet frame blower fan is installed.
Further, said suspension rod is connected in the connection seat board through hanging bolt.
Further, said suspension rod is swung in 180 degree scopes with respect to connecting seat board.
Further, comprise that four connect seat board, on per two connection seat boards a suspension rod is installed.
Further, said suspension rod is I-shaped, and two bar portions connect one respectively and connect seat board, are provided with crossbeam between the bar portion.
Further, the airflow direction that blows out perpendicular to said blower fan of the swaying direction of said suspension rod.
Further, suspension rod leaves the roughly assemblage gap of 2mm with connecting between the seat board.
Further, suspension rod is embedded with the roughly steel plate of 2mm with connecting between the seat board.
Further, blower fan utilizes bolt to be connected through two seven font boatswain chairs with the well cabinet frame.
Further, four ends of well cabinet frame are beaten and respectively are equipped with about 4 and the suspension rod connection holes.
Blower fan of the present invention; Through the suspension bracket setting that can swing; Solved jet blower in the arch form tunnel and must make complicated and need fork configuration suspension bracket customized to adapt to the problem that the tunnel pre-embedded steel slab is installed, blower fan of the present invention can be applicable in the tunnel of any camber; Simplified blower fan structure under the situation of functional performance greatly satisfying, overall appearance has been accomplished real exchange, makes and installs very conveniently, has saved wide variety of materials and cost of labor.With respect to jet blower fork-shaped blower fan in original arch form tunnel, the present invention has higher intensity, and fan operation safety has obtained abundant assurance.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described further:
Fig. 1 is the front schematic view of the specific embodiment of the present invention.
Fig. 2 is the side schematic view of the specific embodiment of the present invention.
Fig. 3 is the hanging bolt front schematic view of the specific embodiment of the present invention.
Fig. 4 is the hanging bolt side schematic view of the specific embodiment of the present invention.
11 pre-embedded steel slabs, 22 hanging bolts, 8 arcuate surfaces
21 connect seat board 23 suspension rods 9 blower fans
32 boatswain chairs, 31 well cabinet frames
The specific embodiment
Following with reference to the description of drawings specific embodiment of the present invention.
Fig. 1 and Fig. 2 are respectively the front schematic view and the side schematic view of the specific embodiment of the present invention.
Blower fan of the present invention is in particular for installing blower fan in having the tunnel of camber.The upper end of blower fan connects the top, tunnel, and blower fan is installed in the lower end.In conjunction with Fig. 1 and Fig. 2, the top in tunnel has camber, forms arcuate surface 8.Tunnel top at an arch point of arcuate surface 8 is embedded with pre-embedded steel slab 11, and pre-embedded steel slab 11 is used to install a suspension rod 23; Tunnel top at another arch point of arcuate surface 8 also is embedded with pre-embedded steel slab 11, and this pre-embedded steel slab 11 is used to install another suspension rod 23.
Simultaneously with reference to Fig. 3 and Fig. 4; All keep at a certain distance away on the pre-embedded steel slab 11 of each arch position and directly be welded with two connection seat boards 21; The overall structure that connects seat board 21 is similar to channel-section steel, and its length direction is radially consistent with blower fan 9 to be installed, and is vertical with airflow direction.Connect on the seat board 21 and be separately installed with hanging bolt 22; That is, each arch point position is equipped with 22, two hanging bolts 22 of two hanging bolts suspension rod 23 of slinging jointly; Pass through bolt arrangement; Suspension rod 23 can have the swing degree of freedom on the camber bearing of trend, and because the action of gravity of suspension rod 23 and blower fan 9, all the time perpendicular to ground.Hanging bolt has major diameter (about M24), and high strength (12.9 grades) is to bear the high request of blower fan installation and operation.Two arch positions are installed 23, two suspension rods 23 of a suspension rod respectively and are connected in a well cabinet frame 31 jointly.Blower fan 9 utilizes Bolt Connection through two seven font boatswain chairs and well cabinet frame, and the groined type structure guarantees that suspension bracket has enough planar strength and rigidity.Four ends of well cabinet frame are beaten and respectively are equipped with about 4 and the suspension rod connection holes, guarantee when pre-embedded steel slab radial distance error is very big, can play regulating action.
Blower fan 9 roughly is cylindrical shape, and its axial direction is the airflow direction that blower fan blows out.And but blower fan 9 is axially vertical with the swaying direction of suspension rod, and promptly the air-flow of blower fan 9 can not cause the swing of suspension rod 23.
Because the camber in tunnel is the sagittal plane at blower fan 9; Connect openings at two ends on seat board 21 length directions so utilize; Suspension rod 23 has the free adapted space of nearly 180 ° wide-angle; Making it is needing to tilt the welding back that suspension rod 23 is not produced the phenomenon that same needs tilt to install with pre-embedded steel slab 11 because of there is camber in the tunnel; When promptly no matter connecting seat board 21 and how to tilt to be welded on pre-embedded steel slab 11 because of the tunnel camber, the suspension rod 23 that connects with it all the time can be perpendicular to ground because of blower fan 9 actions of gravity, has thoroughly solved the suspension bracket member and originally must cooperate with multiple angle of inclination and install to adapt to the difficult problem of tunnel camber.And suspension rod 23 upper ends are semicircle camber structure, the phenomenon of colliding in when tilting welding to avoid connecting seat board 21 and suspension rod 23 tops.
In three dimensions, have thrust, blower fan centrifugal force in the radial direction and the three kinds of effects of gravity of vertical direction on the airflow direction during blower fan 9 operations, the present invention's this moment carries out the degree of freedom limit of these three directions as follows:
For the thrust on the airflow direction and since suspension rod 23 tops with connects seat board 21 and connects, connection seat board 21 is the structure that is similar to channel-section steel; Therefore the side wall surface that connects seat board 21 can limit suspension rod 23 in the front and back play phenomenon that receives under the thrust, simultaneously since this moment suspension rod 23 can receive the moment of flexure effect, because of suspension rod 23 is to add a level in the middle of two vertical channel-section steels to connect channel-section steel and form; Promptly; Suspension rod 23 is I-shaped, and two bar portions connect one respectively and connect seat board 21, are provided with crossbeam between the bar portion; And vertical channel-section steel in the vertical direction also is provided with the reinforcement shrouding of some, so the global sections coefficient of suspension rod 23 is very big, has enough big rigidity, intensity and good whole bending resistance, has tangible high strength characteristics.
For blower fan 9 centrifugal force in the radial direction; Since suspension rod 23 tops with connect seat board 21 connections and finally tighten through large-diameter and high-strength hanging bolt 22; Only stay the assemblage gap about 2mm when connecting seat board 21 design at suspension rod 23; When hanging bolt 22 is tightened in final installation; Embed the steel plate that the 2mm left and right sides is thick in the middle of these two, and then tighten, the swing degree of freedom that the centrifugal action of impeller produces blower fan 9 in the time of promptly can utilizing frictional force between this two member to limit blower fan 9 operations in radial direction with big screw-down torque.
Limit action of gravity for vertical direction; The active force when doing 15 times of load pull-out tests just; Be to utilize the bending resistance of large-diameter and high-strength hanging bolt 22 (level is the direction installation in ground) and the resistance to tension of suspension rod 23 to realize this moment equally; Whole stressed even, blower fan has enough tensile strength.
Blower fan of the present invention stressing conditions in use becomes very simple, no longer need utilize mainframe computer to carry out complicated finite element analysis computation, only only needs the general engineering technology personnel to utilize simple engineering mechanics general knowledge just can carry out designed and checked and calculates.
The connection holes of all parts of blower fan of the present invention all can design and produce by gauged distance, need not consider the error problem of constructing tunnel, has accomplished real exchange.And manufacture, transport, all not yielding when installing.
Through the enforcement of abovementioned technology, all parts among the present invention all can be produced by the standardization drawing, no longer need number customization; And original fork-shaped labyrinth is reduced to horizontal flat vertical standard force structure; Bulk strength and rigidity have obtained sufficient assurance, than original structure about 30% saving have been arranged with material, and have reduced a large amount of costs of labor; And most of materials are the standard steel section material; Buying also reduces with the blanking cost greatly, has reached desirable exchange state between all parts, and overall structure is attractive in appearance, firm, practical, easy.For the production in enormous quantities of tunnel jet blower provides great convenience.
Blower fan of the present invention can freely be applied in the construction of tunnel of different cambers, has all saved material cost and cost of labor greatly for manufacturer and Installation unit, has avoided the phenomenon of easy assembly unit mistake, and has had tangible high-intensity performance.To the installation safety of blower fan and safe in utilization very big assurance being provided all, is a kind of novel product that holds big lead over original arch form tunnel blower fan with bow.
Although be the example purpose; Preferred implementation of the present invention is disclosed; But those of ordinary skill in the art will recognize, under the situation that does not break away from disclosed scope of the present invention and spirit by appending claims, various improvement, increase and replacement are possible.
Claims (10)
1. a blower fan is characterized in that, comprising: a plurality of connection seat boards that are installed on tunnel top; Connect at least two suspension rods that connect seat board, suspension rod can be swung with respect to connecting seat board; Connect the well cabinet frame of aforementioned at least two suspension rods, on the well cabinet frame blower fan is installed.
2. blower fan according to claim 1 is characterized in that: said suspension rod is connected in the connection seat board through hanging bolt.
3. blower fan according to claim 1 is characterized in that: said suspension rod is swung in 180 degree scopes with respect to connecting seat board.
4. blower fan according to claim 1 is characterized in that: comprise that four connect seat board, on per two connection seat boards a suspension rod is installed.
5. blower fan according to claim 1 is characterized in that: said suspension rod is I-shaped, and two bar portions connect one respectively and connect seat board, are provided with crossbeam between the bar portion.
6. blower fan according to claim 1 is characterized in that: the airflow direction that the swaying direction of said suspension rod blows out perpendicular to said blower fan.
7. blower fan suspension bracket according to claim 1 is characterized in that: suspension rod leaves the roughly assemblage gap of 2mm with connecting between the seat board.
8. blower fan according to claim 7 is characterized in that: suspension rod is embedded with the roughly steel plate of 2mm with connecting between the seat board.
9. blower fan according to claim 1 is characterized in that: blower fan utilizes bolt to be connected through two seven font boatswain chairs with the well cabinet frame.
10. blower fan according to claim 1 is characterized in that: four ends of well cabinet frame are beaten and respectively are equipped with about 4 and the suspension rod connection holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142988 CN102808640A (en) | 2011-05-30 | 2011-05-30 | Fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110142988 CN102808640A (en) | 2011-05-30 | 2011-05-30 | Fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102808640A true CN102808640A (en) | 2012-12-05 |
Family
ID=47232491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110142988 Pending CN102808640A (en) | 2011-05-30 | 2011-05-30 | Fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102808640A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622798A (en) * | 2020-06-11 | 2020-09-04 | 安徽海瀚物联科技有限公司 | Intelligent centralized monitoring system for mine underground cooling |
-
2011
- 2011-05-30 CN CN 201110142988 patent/CN102808640A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622798A (en) * | 2020-06-11 | 2020-09-04 | 安徽海瀚物联科技有限公司 | Intelligent centralized monitoring system for mine underground cooling |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121205 |